KEEPING TRADITIONS WE CREATE OUR FUTURE!

KEEPING TRADITIONS WE CREATE OUR FUTURE!

CONTENTS INTEGRA GROUP...4 ABOUT THE COMPANY...5 MOBILE DRILLING RIGS...11 CLUSTER DRILLING RIGS...19 FIXED DRILLING RIGS...29 COMPONENTS AND SYSTEMS OF DRILLING RIGS...37 DRAWWORKS WITH CHAIN TRANSMISSION...38 DRAWWORKS OF ET SERIES...40 DRAWWORKS MODULE LBU 750 E SNG...42 DRILL PUMPS...44 ROTARY TABLES...47 MUD CIRCULATION SYSTEMS (EQUIPMENT PACKAGES)...48 SWIVELS...50 HOOK BLOCKS...51 DERRICKS...52 LIFTING AND HANDLING AUTOMATIC EQUIPMENT...54 TOP DRIVE...55 MECHANIZED CATWALK MPM-3...56 DERRICK EMERGENCY ESCAPE DEVICE...57 DRILLER'S CABIN...58 DRILLING EQUIPMENT PACKAGES...59 CONTACTS...60

INTEGRA GROUP Established in 2004 to form high-technology oilfield service and equipment manufacturing group, Integra Group currently holds one of the leading positions in Russia in onshore oilfield services. Since foundation Integra Group has consolidated 17 acquired strategic assets oilfield service companies and enterprises manufacturing equipment for oil and gas sector in Russia and the CIS countries. Integra Group provides services in drilling, workover, integrated project management (IPM), technology services, formation evaluation as well as manufactures drilling rigs, drilling tools and cementing equipment. Integra Group provides full range of oilfield services from exploration to well completion, including manufacturing of drilling rigs and drilling tools. This competitive advantage makes Integra Group a unique player at the Russian oilfield service market. Over 20 000 staff of Integra Group work in the regions of Western and Eastern Siberia, the Urals, Komi Republic, the South of Russia, Uzbekistan, Azerbaijan, Kazakhstan as well as Mauritania, India, Brasilia, Venezuela and the USA. Since February 2007, Global Depositary Receipts of Integra Group are included in London Stock Exchange listing. In 2008 Integra Group began active business expansion in the CIS countries. Representative offices have been opened in Ukraine, Kazakhstan, Azerbaijan, Uzbekistan and Turkmenistan. Our Customers include the largest oil and gas companies of Russia as well as Russian subsidiaries of foreign oil companies.

ABOUT THE COMPANY URBO - drilling equipment Ltd. aims at providing Customers with new types of highperformance equipment and qualitative service of the operated equipment

URBO - drilling equipment Ltd. aims at providing Customers with new types of high-performance equipment and qualitative service of the operated equipment. Equipment Manufacturing Company URBO-drilling equipment enters Integra Group. Main activities of URBO are: Design and manufacturing of complete drilling rigs as per the Customer's specification at in-house production facilities; Supply of drilling equipment packages, components and spare parts of drilling rigs. URBO-drilling equipment Ltd. was established in October 2004 on the basis of structural subsidiaries of consolidated equipment manufacturing plants (Uralmash- Izhora Group), designing and manufacturing drilling equipment as part of OMZ- Offshore and oil and gas projects and JSC Uralmashzavod. The enterprise got all the required technical, technology, engineering and production bases for drilling equipment manufacturing as well as the right to use trade marks УРАЛМАШ and URALMASH according to the long-term license agreement. In September 2005 Integra Group acquired CJSC Uralmash-drilling equipment. Production of drilling rigs was restarted: in 2007 URBO received large orders from JSC Gazprom for 11 heavy drilling rigs as well as from JSC Rosneft for 4 heavy drilling rigs. As a result, number of complete drilling rigs being manufactured in 2007 reached 28 compared to 2 rigs in 2005. URBO-drilling equipment is proud of its Engineering Department and 246 engineers, the majority of which have more than ten years experience in drilling rigs designing. It is the largest specialized engineering centre in Russia keeping best traditions of the domestic engineering experience in heavy equipment manufacturing. Within a short period of time extensive program on production modernization has been performed. In 2007 investments into the enterprise development amounted to 110.7 mln. rubles (compared to 93 mln. rubles in 2006.) Within 3 years 420 new working places have been established. Due to expansion of URBO-drilling equipment Ltd. in 2006 Tyumen branch was established on the basis of Tyumen Shipbuilding plant (TSZ), where production

has also been restarted from ground up. The implemented program on third-party contracting and production expansion at TSZ resulted into complete independence of URBO-drilling equipment from supplies of JSC Uralmashzavod (Uralmash Equipment Manufacturing Corporation). Today URBO-drilling equipment offers its Clients a wide range of various drilling rigs (fixed, cluster and mobile rigs) for drilling depth within 2000 and 15000 meters in any climatic and mining and geological conditions. The offered models belong to a new generation of the drilling equipment, the structure of which corresponds to all latest requirements of oil and gas industry. Today drilling rigs are equipped with triplex drill pumps, being reliable and efficient in operation, mud circulation systems, providing ecologically clean drilling, have a variable drive of main units, bit feed control and are equipped with the latest digital control systems. The rigs are equipped with top drives designed to perform quick and no-failure drilling of vertical, directional and horizontal wells. According to the Customer's requirements, rigs may be equipped with imported components, for example, top drives produced by Varco, Canrig, Tesco, etc., diesel units or diesel-electric stations produced by Caterpillar, Cammins and others. Power supply systems may be produced on the component base of the leading world producers such as Siemens, Allen Bradley, ABB, etc. URBO-drilling equipment Ltd. provides its Customers with professional services in optimum volume and of minimum response time. Each drilling rig is maintained with a range of services: obligatory rig-up and strength tests at the plant facilities, contract supervision at the Customer's facility, putting-into-operation, training of the Customer's staff on units and mechanisms operation, field supervision and maintenance within warranty period, post-warranty maintenance. MANUFACTURING Block of workshops for manufacturing of the drilling equipment (including Tyumen branch Tyumen Shipbuilding plant) counts 400 units of the fleet and covers 86000 sq.m. Manufacturing block for drilling equipment production covers 86000 sq.m. ABOUT THE COMPANY

and houses two machine shops and one assembly shop. The fleet counts over 400 units of equipment which includes turning machines, vertical boring mills, milling machines, boring machines and grinding machines. Gear-cutting machines include not only gear-milling machines and gear-shaping machines, but also gear-planers and gear-manufacturing equipment. Besides general-purpose equipment, equipment with numerical control and processing centers are involved in manufacturing of drilling rig components. Additional fleet of cut-off machines, centering machines, slotting machines, broaching machines, thread-cutting machines, honing machines and special-purpose units expands technology advantages in manufacturing of spare parts and non-standard equipment as well as allows repairing large technology components. Machining and assembling facility with 24m span is equipped with cranes with lifting capacity of over 50 tons. Welding facility, paint-spraying cabinet and packaging rooms build up a closed cycle of drilling equipment manufacturing. Testing facility serves to test the assembled equipment for its conformity to the specification and later passports for these units are issued. Prior shipment to the Customer, check assembly of the drilling rigs is performed at the open site which is equipped with the gantry crane with lifting capacity of 32 tons and allows using truck cranes of up to 100 tons. ENGINEERING Engineering process is based on CADMECH, SEARCH, AVS, AUTOCAD, SOLIDEDGE software. URBO-drilling equipment Ltd. aims at developing and promoting the conceptually new equipment. Skillful team of engineers, researchers and production engineers is one of our main advantages. Integra Research & Development (Austin, Texas) has been established, and is positioned as the engineering centre of Equipment Manufacturing Division and Management Subsidiary of the whole Engineering Division. Engineering and design documentation are the key business competence of URBO-drilling equipment and the key component of the organic business growth of LLC Stromneftemash (enters Integra Group). Therefore, quality and optimality of the engineering business processes have significant influence on the business results.

High operational quality of the drilling equipment is the result of significant investments into research and development as well as quality control. The latest software (AutoCAD, CadMech, Search, AVS, Ansys) is used for drilling equipment engineering. We have experience to perform joint engineering with the leading world engineering companies. Quality of the manufactured equipment is the most important aspect of our business. Quality control system guarantees conformance to high standards at all stages of engineering, manufacturing and after-sales service of machines and equipment. Internal quality is controlled by the experts trained to international quality control methods. Quality system has been certified for conformance to ISO 9001. Currently the Company actively introduces automated working places. CAD development makes it possible to perform complete production cycle from product development to its sale, followed by creation of automated system to control all units of this cycle. SERVICES Maintenance and constant technical monitoring are the basis for efficient operation of the drilling equipment. Drilling equipment servicing aims at reduction of drilling companies' costs by means of equipment servicing, repair and upgrading by the specialized servicing enterprises. Drilling subsidiaries of oil companies are being transformed into independent companies and for more efficient work they require professional servicing. Service provided by the manufacturer of the drilling equipment is required for drilling companies to improve competitive advantages at the drilling market. Integra Group consolidates several servicing enterprises and centers which provide services on overhaul of the drilling equipment, modernization of the drilling rigs, servicing, industrial safety expertise, survey and technical diagnostics of oil and gas equipment. They are: LLC Integra-MashService (Yekaterinburg), regional servicing enterprise LLC Orenburgtekhservice (Buzuluk) as well as regional servicing centers in Novy Urengoy and at Vankor oilfield (the Krasnoyarsk Territory). ABOUT THE COMPANY

Servicing enterprises provide the following drilling equipment services: Overhaul of the drilling equipment Drill pumps Drawworks Transmission (reducers) Rotary table Swivels Crown blocks Block-and-tackle systems Hook blocks, etc Upgrade of the drilling rigs Rigs equipping with top drives Remodeling of fixed drilling rigs, including foreign models, for cluster drilling Increase of 3000EUK loading capacity up to 270t Increase of 3D and 4E loading capacity up to 400t Drilling rigs upgrading in accordance with the requirements of safety rules PB 08-624-03 Restoration and complete equipment of the drilling rigs Replacement of drilling rig drives Replacement of duplex (UNB, NB) drill pumps with triplex (UNBT) pumps with capacity of 600, 950 and 1180kW Replacement of shelters Installation of drain collection systems Mechanization of preventer unit Modernization of mud circulation systems Contract supervision of the modernized equipment Integrated servicing of drilling rigs in the regions Servicing and maintenance of foreign drilling equipment Industrial safety expertise of drilling rig units and oil and gas producing equipment Industrial safety expertise of design documentation on modernization of drilling rigs Inspection and technical diagnostics of drilling rigs and equipment

MOBILE DRILLING RIGS Mobile drilling rigs provide moving from one well to the other one within a short period of time

Mobile drilling rigs are designed to drill oil and gas wells with rated drilling depth of 2500-3200 meters. The rigs are equipped with the latest diesel, diesel-electric and electric drives, providing smooth control of main unit parameters. Main structural features of mobile rigs include modular packaging and in-house transport base. Built-in transport units make it possible to provide modules transportation by means of truck tractors and dollies. Each module is the transport unit with all the required equipment (technology equipment, communications, shelters, heaters), completely assembled at the plant and ready for rig-up and operation. Modular structure of the drilling rigs makes for reducing time of equipment assembly, disassembly and transportation. Drilling rig modules may be transported by roads of general use, the modules are equipped with hydraulic jacks which make it possible to perform rig-up without crane equipment. The modules are mounted at the drilling site so as to provide general houses, for example, house for mud circulation system and house for drill pumps. Drilling rigs with diesel drive of drawworks and rotary table are equipped with two diesel units and Allison hydromechanic transmissions, with four forward speed positions and one backward speed position. Cummins, Caterpillar, YaMZ motors may be used as drive motors. The drawworks is equipped with auxiliary TEP- 45brake, also functioning as bit feed controller. Drilling rigs with electric (diesel-electric) drive have individual adjustable drive of the drawworks and rotary table of DC motors. Drawworks motor also functions as main and auxiliary brake as well as bit feed controller. Each drilling pump UNBT-600 has individual adjustable drive of DC motors. These drilling rigs may be used for well workover, maintenance, emergency works at the earlier drilled wells, cement and sand plugs drilling, windows milling in the string, second well bores drilling. According to the Customer's requirement, it is possible to change drilling rig equipment in conformity with specific conditions of equipment operation.

2500/160 DP-BM 2500/160 DER-P (ER-P) 2900/175 DER-P (ER-P) 3200/200 DER-М Allowable hook load, tf (kn) Maximum static hook load, tf (kn) Nominal drilling depth, m Stalk length, m Type of drive 160 (1600) 200 (2000) 2500 18 diesel 160 (1600) 175 (1750) 200 (2000) 200 (2000) 210 (2100) 240 (2400) 2500 2900 3200 18 18 18 diesel-electric (electric) diesel-electric (electric) дизель-электрический Derrick: UM 31-160 OG-R UM 31-175 OG- UM 32-175 OG-R UM 33-200 OG-R Type mast with open front edge mast with open front edge mast with open front edge mast with open front edge, 2- section telescopic Height, m Drill floor Type Height (drilling floor level), m 31,0 31,0 32,0 33,0 Folding Folding Folding Folding 6,6 7,2 7,2 7,2 Block-and-tackle system Drilling line diameter, mm Number of block-and-tackle drill lines (equipment) Drawworks: 28 28 28 28 8 (4х5) 8 (4х5) 8 (4х5) 10 (5х6) LBU-600 LBU-600 ET-3-P LBU-600 ET-3-P LBU 670 ET-3 Nominal input power, kw 550 600 600 670 Swivel: Load capacity, tf (kn) Dynamic load rating (API), tf (kn) Rotary table: Nominal power of rotary drive, kw Rotary table opening diameter, mm Allowable static load capacity, tf (kn) Pump: Power, kw Maximum delivery, l/sec Maximum pressure (discharge), MPa Mud circulation system: Net capacity, m? Number of treatment stages UV-160 МА UV-160 МА UV-160 МА UV-160 МА 160 (1600) 160 (1600) 175 (1750) 250 (2500) 100 (1000) 100 (1000) 105 (1050) 160 (1600) R-700 R-700 R-700 R-700 370 370 370 370 700 700 700 700 500 (5000) 500 (5000) 500 (5000) 500 (5000) UNBT-600 UNBT-600 UNBT-600 UNBT-600 600 600 600 600 50,9 35 120 120 90 120 4 50,9 50,9 50,9 35 35 35 4 4 4 MOBILE DRILLING RIGS

MOBILE DRILLING RIG 3200/200DER

Safe system to control drawworks drive when hoisting, lowering, braking drilling tools and in the mode of automated bit feed Use of the latest diesel electric power stations leads to maximum efficiency Application of the latest computerized control of the drilling rig increases work efficiency and makes it possible to perform constant monitoring of the drilling process Application of Varco TDS-9SA top drive Application of Swaco high-performance mud treatment units and centrifugal pump units produced by Mission High efficiency of drilling is achieved due to application of adjustable DC drive. System to control main units is made on the basis of microprocessing controllers. In this case the system safety is increased by means of self-diagnostics. Choice of optimum modes in the course of drilling as well as lifting and handling operations makes it possible to reduce electric power consumption by 15%. Auxiliary drive makes it possible to hoist the drill string in case of emergency power cut off from the main power supply source using emergency diesel electric power supply station. Drawworks is controlled by means of one handle joystick on the driller's remote control panel. Folding self-elevating floor makes it possible to mount the equipment at the drill floor at 3.4 m height. Reduction of time for mounting and dismounting works as well as transportation is the main advantage of the new drilling rig because main mechanisms are installed in modules with built-in road bridges. Drawworks module Drawworks module includes biaxial semitrailer with the following mounted equipment: Drawworks, auxiliary drive, stabilizer, rotary drive Drawworks lubrication system, drawworks air channel and rotary drive, auxiliary equipment The module provides: Drawworks operation Drawworks operation with auxiliary drive Suppression of drill line oscillation while drum winding Electric lighting of the working places at night with lamps installed at the shelter and servicing site MOBILE DRILLING RIGS

Drawworks is powered by electric motor of the main drive which delivers rotation to the main shaft of the gear transmission by means of gear clutch. Then via the gear transmission, rotation is delivered to the countershaft and via the following gear transmission to the hoisting shaft. In case of main drive failure drawworks may operate with auxiliary drive. In this case rotation via chain transmission is delivered to countershaft, installed in transmission. One-speed drilling rig LBU-670ET1-M is equipped with the drum with thread for 28 mm diam. cable, gear transmission, DC motor of 1000kW, frame, Eaton 238DBB parking plate brake at the hoisting shaft, second Eaton 215DBB small brake at the intermediate shaft. At the countershaft of transmission there is a chain wheel to deliver rotation from auxiliary drive. Connection of this shaft to the drive shaft of transmission is performed manually with gear wheel. Switching mechanism is installed outside in the transmission cover. To supply power to Eaton parking brake air channel is provided. It is connected to compressor, and compressed-air cylinder is provided for emergency unbraking. The novelty of the drawworks is due to the lack of chain transmissions, tire-type pneumatic clutches, electromagnetic or hydrodynamic brake, band brake and brake lever, gear shift which are typical for traditional drawworks. Equipment and drive of the drawworks module are remotely controlled from panel in the driller's cabin. Auxiliary drive with asynchronous 55kW motor is connected to the chain transmission of the drawworks. The module holds rotary drive of 1000kW DC motor with gearing to the rotary table by means of drive shafts and angle countershaft. Two auxiliary hydraulic drawworks are installed in the module. Shelter of the module is made of three-layer panels. The module also holds site for maintenance of mechanism fastening the fixed end of the drilling line. Derrick Derrick with open front edge is telescopic with two main sections, inclined, hoisted in the running position by means of telescopic hydraulic cylinders. Useful height of the derrick is 33m. Maximum static hook load is 240 tons in conformity with the API standard. The derrick is equipped with 5x6 block-and-tackle system with 28mm diam. cable and is designed for operation of Varco top drive. Derrick units are made of square pipes. Derrick structure is welded. Bottom section of the derrick is supported by auxiliary Y shaped section with two hinge

bearings, connected to the ramp. The derrick includes a separately transported derrick platform, mechanism to fasten fixed end of the drilling line, screw rods to fasten the derrick to the ramp. Rope mechanism with hydraulic drawworks drive and cam mechanism to fix the advanced top section of the derrick with manual drive are provided for derrick telescoping. Fixation is indicated with light and sound alarm. In the operating position the derrick has 3.5? slope. The inclined position is fixed with four load guys, and wind loads are supported with four wind guys. Block-and-tackle system and the rope are installed in the derrick module; reserve and excess of the rope is winded at the rope drawworks with electric drive. Derrick module is transported at the biaxial semitrailer by means of the truck tractor. Drill floor module Module of the drilling floor is folding, parallelogram and consists of rotary transport module, side detachable platforms, load beams with pneumatic tackles of 12.5 tons, tank with funnel, metal top shelters of 0.6 m height, setbacks, soft cover of the floor, preventers assembly facility, dolly and railway track for preventers, transport unit in the form of biaxial dolly attached to the body of the transport rotary module. Left side block (control module) includes one of the hydraulic catheads and AKB- 4 drill tong control panel, second hydraulic cathead and AKB-4 drill tong are installed at the transport module of the rotary table. Drill floor is lifted in the operating position after installation of the specified components at the transport module of the rotary table; moreover, the driller's cabin is mounted at the floor. Drill floor is lifted by means of the block-and-tackle system with lifting straps. The floor is fixed in the operating position by bolts in the top part of the floor and with side screw rods. Drill pumps modules Modules of drill pumps #1 and #2 include drill pumps UNBT-950L2 with drive capacity of 950kW. These pumps differ from the previous modules due to L-shaped hydraulic block, which makes for reducing voltage in borings crossings what increases the useful life of the block. Lubricating and cooling systems of the pistoncylinder unit provides intense heat takeoff from friction surface and prevents air inflow on the opposite side of the piston. The structure contains bimetallic bushings, significantly increasing life of piston-cylinder block. MOBILE DRILLING RIGS

Application of a more powerful pump makes it possible to increase the travel speed with increased pressure and to reduce drilling time. Besides the specified equipment the module includes 1000kW DC motor, pump drive with four poly V- belts, pumps piping, load beam with hand tackle. Module of pump #2 differs in its right-hand installation of the V belt transmission and incorporation of high pressure compressor to feed pneumatic compensators of high pressure. All the equipment of the modules is mounted at biaxial semitrailers. Mud circulation system 3 Mud circulation system consists of four modules with 50m tanks for drilling mud and sludge trapping system. All modules of the mud circulation system contain biaxial semitrailers of the same overall dimensions. When being assembled modules are equipped with soft shelters at the frames which form general room at the drilling site. The shelter consists of the demountable cover part with fans and deflectors. Cleaning module at biaxial semitrailer contains tank where Swaco cleaning equipment is mounted: two vibrating screens of primary cleaning, shale shakerdesander unit, degasser and centrifuge. The module includes two Mission centrifugal pumps with electric drive, pipelines, electric equipment. The module contains sludge trapping system consisting of worm conveyor and tanks for sludge collection. Secondary cleaning module at a special biaxial semitrailer includes tank with mechanical mixers and Swaco centrifuge pump. Gas separator is also installed in the module. Intermediary block contains tank with mud preparation section and mud storage section, two mixing hoppers, two Mission centrifugal pumps and three hydraulic mixers. Load beam and two hand tackles of 2.0 tons supply mud powder, electric equipment and pipelines from the module end. Receiving tank module contains tank with mechanical mixers, two Mission suction centrifugal pumps with manifold, electric equipment, mud pipelines. Steam generator with electric power supply is 3 mounted in the module. Slugging tank with equipment contains 3m tank with submersible pump. The tank is mounted at the frame at the ground level on the right side of the drilling floor. Block of additional tanks contains three modules at special biaxial semitrailers: 3 3 50m water tank with centrifugal pump, two 50m mud tanks with two Mission 3 centrifugal pumps and second 50m tank for the drilling mud.

CLUSTER DRILLING RIGS Cluster drilling rigs have been designed by URBO-drilling equipment Ltd. and have no analogues abroad

Cluster drilling rigs are designed for cluster drilling of oil and gas wells with rated drilling depth of 3200-6500 m. The rigs have the latest electric drive providing gradual control of main rig components. Design features of cluster drilling rigs are specified by cluster drilling which became widespread in Western Siberia in the course of waterlogged areas development due to roads impassability. Cluster drilling makes it possible to reduce costs for rigging-up operations, engineering development of well sites, construction of access roads to the field, as, in the course of drilling, the rigged-up equipment is moved within the cluster. Equipment package for cluster drilling includes mobile and fixed components, thus, only main part of the equipment for well drilling is moved from one well to another one. Lately the rigs of a new generation (EK-BM series) have been designed and replaced the legendary rigs (3000EUK) which had been successfully operated since 1978. They have some peculiar features, and first of all, block-modular configuration. Such package of full factory readiness makes it possible to simplify and to accelerate the first rig-up as well as to reduce time for mounting-dismounting works when moving the drilling rig within the cluster. The configuration of the drilling rigs reflects all main positive decisions proved by the long-term experience of cluster drilling rigs operation at the fields of Western Siberia. To create comfortable working environment, housing facilities of the drilling rigs are equipped with heated floors, shelters and heating air-and-steam units with the closed circulation system. Main rig components are driven by electric motors of direct or alternating current from industrial networks via SCR which allows to choose the optimum drilling mode and to set up various combinations of rotary revolutions, drilling mud supply and bit axial load. As per the Customer's requirements it is possible to change the drilling rig package in conformity with the specific operating conditions.

Allowable hook load (as per GOST 16293), tf (kn) Maximum static hook load (as per API, spec.4f), tf (kn) BU 3900/225 EK-BM 2250 (225) 2700 (270) BU 4000/250 EK-BM BU 4200/250 EK-BM(Ch) BU 4500/270 EK-BM [EK-BM(Ch)] BU 5000/320 EK-BM [EK-BM(Ch)] 2500 (250) 2500 (250) 2700 (270) 3200 (320) 3000 (300) 3000 (300) 3240 (324) 3840 (384) BU 5000/335 DEK-BM (Ch) 3350 (335) 4000 (400) BU 6500/450 EChRK-BM 4500 (450) 5400 (540) Rated drilling depth, m 3900 4000 4200 4500 5000 5000 6500 Stalk length, m 25 24-25 24-27 25 25 25,27 25,27 Drive type DC drive with digital control system DC drive with digital control system Variablefrequency AC drive with digital control system DC (AC) drive with digital control system DC (AC) drive with digital control system DC drive with digital control system Variablefrequency AC drive with digital control system Derrick Type UM 45/225-R UM 45/250-R M 46/250-OG-R UM 45/270-R M 45/335-R M 45/335-R M46/450-OG-R Mast, A-shaped, for manual positioning of stalks, top drive option Mast, A-shaped, for manual positioning of stalks, top drive option Mast, with open front edge, for manual positioning of stalks, top drive option Mast, A-shaped, for manual positioning of stalks, top drive option Mast, A-shaped, for manual positioning of stalks, top drive option Mast, A-shaped, for manual positioning of stalks, top drive option Mast, with open front edge, for manual positioning of stalks, top drive option Useful height, m 45,6 45 46 45,3 45 45 46 Basement Type Modular Modular Modular Modular Modular Modular Self-elevating Height (drill floor level), m 8,5 9,89 9,89 9,89 9,89 9,89 12,7 Block-and-tackle Drilling line diameter, mm 28 32 32 32 35 35 38 Number of tackle system lines Drawworks: 10 (5х6) 10 (5х6) 10 (5х6) 10 (5х6) 12 (6х7) 12 (6х7) 12 (6х7) LBU-750 SNG LBU-1100 ET-3 LBU-900 АS-2 LBU-900 ET-3 [LBU-900АS-2] LBU-1500 ET-3 LBU-1500 ET-3 [LBU-1500 АS-2] Rated input power, kw 750 1100 900 900 1500 1500 1500 LBU-1500 АS-2 Swivel: Load capacity, tf (kn) Dynamic load capacity (API), tf (kn) Rotary table: Rated power of rotary drive, kw Rotary opening diameter, mm Allowed static load, tf (kn) Pump: Capacity, kw Maximum delivery, l/sec Maximum pressure (output), MPa Mud circulation system Net capacity of circulation system, m? Number of cleaning stages UV-250 МА UV-270 МА UV-270 МА UV-270 МА UV-320 МА UV-335 МА UV-450 МА 250 (2500) 270 (2700) 270 (2700) 270 (2700) 320 (3200) 335 (3350) 450 (4500) 160 (1600) R-700 R-700 R-700 R-700 370 370 370 370 700 700 700 700 500 (5000) 500 (5000) 500 (5000) 500 (5000) UNBT-900 А2 UNBT-900 А2 UNBT-1180 L UNBT-950 L UNBT-950 L UNBT-1180 L UNBT-1180 L 950 950 1180 950 950 1180 1180 46 32 160 (1600) 160 (1600) 160 (1600) 46 32 200 (20000) 200 (20000) 51,4 51,4 51,4 51,4 51,4 35 32 32 35 35 260 (2600) R-700 R-700 R-700 370 370 440 700 700 700 500 (5000) 500 (5000) 500 (5000) 160 205 240 210 210 205 360 4 4 5 4 4 4 4 CLUSTER DRILLING RIGS

Reduction of time for cluster drilling due to the lack of necessity to perform rig-up works when moving from one well to another one of the whole train, including derrick and drawworks block with drill pipes, mounted at the setbacks, and BOP equipment Centering and leveling of derrick block in the course of drilling Application of the extended square and extension of drill pipe length by means of stalks in the course of drilling Reduction of time for first and secondary rig-up Transportation of the rig modules from one cluster to the other one by semitrailers and general-purpose transport Ecologically clean drilling due to elimination of pits for drilling mud collection, prevention of drilling mud spills, water and other liquids into the drilling rig Choice of optimum drilling mode by means of 100% adjustable drive which allows setting up various combinations of rotary revolutions, drilling mud feed and bit axial load Braking by means of electric drive of the drawworks when lowering drill pipes and casings, mechanical brake functions as parking and emergency brake Stageless fixation of the rotary table which simplifies the directional and horizontal drilling Wells cementing without additional expenses on delivery and connection of the cementing units Reduction of cluster working area due to the lack of necessity to make a separate complex of cementing units Drawworks Drawworks LBU-900AS-2 is designed for lifting and lowering of the drilling tools, lowering of casings, automated bit feed to the borehole, accidents elimination while wells drilling, derrick hoisting and lowering. Drawworks of AS series is the latest hoisting equipment which reflects new tendencies in the world oil equipment manufacturing industry. Novelty of the drawworks is specified by the lack of typical chain transmissions, tiretype pneumatic clutches, electromagnetic and hydrodynamic brake, band brake and braking handle. The drawworks is equipped with electric drive of alternating current. Due to the original structure and electric drive features, the drawworks has a very simple and compact configuration. CLUSTER DRILLING RIGS

Main features of the drawworks Multifunctional drive. Electric motor of the drawworks drive provides not only hoisting but also the controlled lowering of the drill pipes and casings. It also provides complete stoppage and holding of the load in the fixed position. Therefore, the auxiliary brake is not required. While drilling, the motor functions as bit feed controller. In case of emergency power supply cut-off, it is possible to hoist drill pipes by means of the motor powered by diesel electric power station of partial capacity Control system provides total control of driving electric motors while hoisting, lowering and intermediary modes, i.e. provides braking while hoisting and acceleration while lowering Gear transmission consists of three gears which provide two speed levels at the hoisting shaft: quick and slow. Quick gear provides lifting and lowering of drill pipes and empty elevator. Slow gear provides lowering of heavy drill pipes and casings and accidents prevention. Gear wheels are made of high-performance steel, wheel gears have special strengthening parts Drive of disk brakes is pneumatic. Due to the fact that electric drive of the drawworks functions as the brake, disc brake is used only to fix loads in the fixed position Drum thread and ledges protection increase life time of the drilling line and hoisting drum. The thread makes cable winding better and is made at special straps, which are welded to the drum. When the thread is worn out, the straps may be replaced. To protect ledges of the drum against wearing out, end straps made of wear-resistant steel are provided Noncontact sealing of shafts makes it possible to prevent oil spills outside from the transmission body Remote control creates comfort labor conditions for the driller. The driller may operate in the sitting position. Gear shift from quick to slow is rarely performed because in majority of cases all operation of the drilling string is performed at quick gear

Derrick The derrick has open front edge and is made of open profile. Main components of the derrick sections are made of flat welded frames. Back edge is made of beams of various cross-sections depending on the length and loads. Main elements are made of low-alloyed steel. Elements are pin-jointed. The derrick is designed for installation of block-and-tackle system, platform for manual positioning of stalks, auxiliary equipment, positioning of drill pipes and drill collars, drill bit, derrick emergency escape device and top drive system. Derrick man's platform includes stalks storage facility and two sites (monkey boards) with the heated floor. Stalks storage facility is equipped with hinged latches installed at derrick man's boards in the cross section with pins of the storage facility. Central pins are equipped with connecting rods and block to swing the cable of the auxiliary drawworks while handling loads at the catwalk. The drawworks to handle drill collars is mounted at the platform. The derrick is equipped with step ladders with tunnel fencing and gangways, installed with 6 m interval which provides safe ascent. The derrick has site to operate drill hose plug with manifold stands, device against dropping of drill pipes, installed at the setback. For crown block sheaves repair and auxiliary works, the derrick is equipped with a gin pole. Basement The basement of derrick and drawworks block is the spatial structure, consisting of load frames, ladders, fencing. Bottom part of the basement consists of two load frames (left and right longerons), installed at the beams of the moving mechanism. Beams of the moving mechanism also fix balance trucks, which make it possible to move the basement by railings to the next well within the cluster. The railing consists of 9m beams, which are connected with special bolts. CLUSTER DRILLING RIGS

Top part of the basement provides installation of BOP equipment as per any scheme and consists of two flat welded frames (front and back) for installation of the central frame (rotary module) and two side frames (control module and auxiliary drawworks module) to be mounted. They form the drilling floor which provides installation of rotary table with the drive and installation of setbacks, auxiliary drawworks, driller's cabin, various control panels and other auxiliary equipment. Ladders with handrails are provided to ascend the basement. Removable handrails are fixed to the load frames. Structure of derrick and drawworks block basement is equipped with a special tray for collection and discharge of the drilling mud to the well head. To install and move the preventer string under the rotary floor, two monorails with lifting tackles are provided. For temporary fixation of the preventer string while moving the basement, there is the suspension which is fixed between monorails. Basements of the modules, installed in the drilling rig train, are frames with the installed equipment. Module frames are connected to each other with screw rods. Runners to move the train together with the derrick and drawworks block are fixed to the module frames. Drill pump Single-acting triplex drill pump UNBT-1180L1 is designed to feed drilling mud in the course of deep oil and gas wells drilling. Pressure level in the focus points of hydraulic box cylinders is reduced up to the safe level by reducing internal diameters of the cylinders. Surface of the focus points is processed up to Ra1.6 roughness to reduce pressure level. Forged parts of alloyed steel are used as hydraulic boxes. The liner is fixed with the clamp. Such structure is designed to provide tight contact of the liner end and hydraulic box face. The pump includes a special electric pump unit to lubricate the bearings and components of slide-crank mechanism and transmission shaft. Moreover, there is gravity lubrication supply system of the pump reducing part, which provides gravity oil supply to the friction points from oil sumps through oil lines and oil mist, oil spraying and dipping into oil. Wheel gears and gears of the transmission shaft are heat treated. High pressure pneumatic compensator of the welded-forged structure provides unevenness of output pressure of max. 5% with 35 MPa working pressure.

Lubrication and cooling water supply system provides intense heat withdrawal off the friction surfaces, lubricates plunger-plug friction pair, prevents air inflow due to the use of hydraulic hitch which provides the required life time of the plunger. Mud circulation system Mud circulation system consists of 5 cleaning stages and several modules of complete factory readiness, equipped with the required technology equipment. The modules are mounted at railings and are connected to each other and to the derrick and drawworks block with rods, forming the train which may move by railings to a new well within the cluster. Joints between module frames are sealed with intermodule seals. The modules are tied up and fixed to the adjoining equipment of the drilling rig with technology communications. Modules are installed in the following order: water tank module, operation module, primary cleaning module, secondary cleaning module, flocculation coagulation unit, mud preparation module, drilling mud modules. Mud circulation system may operate in the mode of drilling mud cleaning, mud preparation mode and well fill-up module. Circulation system is equipped with the heated shelter. Facilities are heated with hot air of the heat generator. Technology tanks are heated by coils of the steam generator. Cementing complex Cementing complex has modular configuration and is part of the drilling rig train. The complex is powered and heated by the general power supply system of the drilling rig. The block consists of two modules: one of them includes cementing unit UNBS2-70 (PB), other one includes cement storage facility STsB-65. Cementing unit UNBS2-70(PB) is installed in the closed heated module and consists of: Pump unit, including two triplex pumps of high pressure to pump cement solutions and technology liquids into the well, equipped with drives of high-torque variable-frequency electric motors System of cement solutions preparation and mixing; consists of a mixer, recirculation system with centrifugal pump and two tanks with mixers to prepare and smooth the solution Water feeding system to mix the cement solution, equipped with centrifugal pump and measuring tank CLUSTER DRILLING RIGS

System of suction and discharge manifolds, equipped with the stop valve with manual and pneumatic control Hydraulic equipment, including block of pumps with the drive of the nonsynchronous motor, equipped with slow-motion starter, hydraulic motors and mixers, rotary actuators for valves of mixer and manifolds Pneumatic equipment to control rotary gates at pipelines Panel to control continuous well cementing process. The panel is installed at the working site System to control technology parameters, equipped with pressure, flow and compaction sensors Cement storage facility STsB-65 is mounted at the platform of the open module and includes: Two cement silos 1STs-31, one cement silo 1STs-5A and bag filter of cyclone type Pipelines of the pneumatic system, ventilation, loading and discharge Advantages of this cementing complex: Complex has been adjusted for the drilling rig and does not require delivering transport Electric drive of rig components and units Pneumatic feed of dry cement into mixer to mix cement solution Rig compressor for pneumatic feed of dry cement Panel of the cementing unit to control drill pump drives in the flushing mode while cementing The rig is operated by the staff of 3 motor-machinists and one technical and engineering employee The complex has been designed and manufactured by the Russian company providing servicing for the whole operation period

LAND RIGS Land rigs are equipped with the latest electric, dieselelectric or diesel-hydraulic drives

Land rigs are designed to drill oil and gas wells with nominal 3200-8000 m drilling depth. The rigs are equipped with the latest electric, diesel-electric or diesel-hydraulic drives providing gradual control of parameters of main rig components. Specific feature of the land drilling rigs is high drive capacity of the operating mechanisms, high mechanization level of the main and auxiliary works, for example, due to automated lifting and handling devices, which provide reduction of time for lifting and handling operations by 40%. AC-DC drive and adjustable DC drive powered by industrial networks or dieselelectric stations provide choice of the optimum drilling modes due to stepless setting of the drive systems. The adjustable drive of main mechanisms and application of bit feed controller provide maintenance of the set-up load or tool feed speed. In diesel-hydraulic drilling rigs, main components are driven by dieselhydraulic units via summing transmission. The rigs consist of block-modules of complete factory readiness which simplify and speed up the primary rig-up and reduce the time of reassembly. Drilling rigs have multifunctional rig-up-transport features and may be transported in large blocks by special transport (heavy-duty trailers), in small blocks by trailers or platforms and in units by general-purpose transport. New stage in the development of the Russian equipment manufacturing was marked by the drilling rig BU 8000/600DER, which is equipped with the derrick with open front edge, Swing-Lift self-elevating substructure, top drive and automated driller system as well as the latest high-performance diesel-electric station. System to control main units is based on microprocessing controllers which improve the reliability of the system due to self-diagnostics system and block configuration. As per the Customer's requirements, it is possible to change the drilling rig configuration in conformity with the specific operation conditions.

BU3200/200 DGU-1 BU5000/320 BM(Ch) BU6500/450 DG BU8000/500 DER BU8000/600 DER Allowable hook load, tf (kn) 200 (2000) 320 (3200) 450 (4500) 500 (5000) 500 (5000) Maximum static hook load, tf (kn) 240 (2400) 385 (3850) 540 (5400) 600 (6000) 600 (6000) Rated drilling depth, m 3200 5000 6500 8000 8000 Stalk length, m 25 25-27 25-27 25-27 27 Drive type Diesel-hydraulic AC drive Diesel-hydraulic Diesel-electric Diesel-electric Derrick UM 45/225-R UM 46/320 OG-R UM 32-175 OG-R UM 33-200 OG-R UM 33-200 OG-R Type Mast, 2-stand Mast, A-shaped, with open front edge Mast, 4-stand Mast, 4-stand Mast, A-shaped, with open front edge Height, m Basement Type Height (drill floor level), m 44,8 45 45,3 45,3 Modular Modular Modular 6 10 8 10 Modular 46 Self-elevating 9,2 Block-and-tackle Drilling line diameter, mm 28 35 35 38 38 Number of tackle system lines 10 (5х6) 10 (5х6) 12 (6х7) Drawwor LBU 22-720 LBU-1500 АS-2 LBU-37-1100 D-1 LBU-1500 ET-3 (Drawworks-monoblock) Rated input power, kw 645 1500 1100 1500 12 (6х7) 12 (6х7) LBU-1500 ET-3 1500 Swivel: Load capacity, tf (kn) Dynamic load capacity (API), tf (kn) Rotary Rated power of rotary drive, kw Rotary opening diameter, mm Allowable static load, tf (kn) UV-250 УВ-320 МА UV-450 МА UV-450 МА 250 (2500) 320 (3200) 450 (4500) 450 (4500) 145 (1450) 200 (2000) 260 (2600) 260 (2600) R-700 R-700 R-700 R-950 280 370 370 440 700 700 700 950 500 (5000) 500 (5000) 500 (5000) 630 (6300) UV-500 МА 500 (5000) 300 (3000) R-950 440 950 630 (6300) Pump: UNBT-950 UNBT-1180 L1 UNBT-950 А UNBT-1180 L1 UNBT-1600 Power, kw 950 1180 950 1180 1600 Maximum delivery, l/sec Maximum pressure (discharge), MPa Mud circulation system: Net capacity, m? 3 Number of treatment stages 46 32 160 180 420 600 4 51,4 46 51,4 35 32 35 4 4 4 59,7 53 400 4 LAND RIGS

LAND RIG BU 5000/320 BM(CH) Functions Drilling rig BU 5000/320 BM(Ch) with variable-frequency AC drive, power supply by 6.3 kw network or diesel-electric station, is designed for exploration drilling of up to 5000 m deep wells. Drilling rig may operate in macroclimatic regions with moderate climate, 1 category as o o per GOST 15150-69 (-45 C +40 C) at oil fields with max 6% hydrogen sulphide. o o Maximum operating temperatures (-50 C +45 C). Principal configuration of the rig conforms to the minimum mounting of the rig package at the site. Main advantages: Land rig provides: Development of oil and gas fields with up to 5000 m deep producing formations Increase of labor productivity, minimization of difficulties while wells drilling due to the use of adjustable AC drives Cutting down terms and man-hours for primary and following rig-ups due to modular configuration of the rig, increased factory readiness of blocks and modules, fewer units to be mounted and transported Minimization of the negative influence of the rig on the environment due to ecologically clean drilling provided by liquidation of storehouses and drilling mud disposal, prevention of drilling mud and liquids leaks under the drilling rig Improvement of comfort labor conditions for the drilling crew due to availability of houses with heated shelters and floors, system of houses and working places heating with closed circulation Drilling rig module Drilling rig module with auxiliary equipment is designed for drilling tools hoisting and lowering, casings lowering, automated bit feed to the well bottom, prevention of accidents while wells drilling, hoisting and lowering of the derrick. Drilling rig module consists of: Drawworks LBU-1500 AS-2

Module frames with pipelines Stabilizer Drawworks drive Emergency (auxiliary) drive Drawworks LBU-1500 AS-2 is designed for drilling rigs with drilling line of 35 mm diameter, 320t lifting capacity with 5x6 block-and-tackle system. The drawworks is equipped with AC drive Main features of the drawworks: Multifunctional drive Gear transmission Disc brakes Drum thread and ledges protection Contactless sealing of shafts Remote control Hook block lifting limiter Lifting capacity limiter Derrick Derrick M46-320-OG-R is designed for installation of block-and-tackle system, platform for manual positioning of stalks, auxiliary equipment, positioning of drill strings and drill collars, turbodrill, emergency derrick escape device, roller to suspend logging cable and rotary tongs, hydraulic tong and others. Derrick is designed for mounting of top drive system. The derrick is designed for operation in moderate climate conditions, category 1 as per GOST 15150-69, in wind regions 1 5 as per SNiP 2.01.07-85. The derrick has open front edge and is made of open profile. Main components of the derrick sections are made of flat welded frames. Back edge is made of beams of various cross-sections depending on the length and loads. Main elements are made of low-alloyed steel. Elements are pin-jointed. LAND RIGS

The derrick is equipped with step ladders with tunnel fencing (safety rails) and gangways, installed with 6 m high interval which provides safe ascent. The derrick has site to operate drill hose plug with manifold stands, mechanism against dropping of drill pipes, installed at the setback. The derrick holds electric equipment of lighting system, blocks for suspension of rotary tongs, blocks for auxiliary drawworks cable, derrick emergency escape device and other equipment. Derrick structure provides mounting of top drive system. The manufacturer ships the partially disassembled derrick with units having overall dimensions required for railway transportation. Main elements of the derrick to be transported include nine all-welded sections (with cabling), leg, girths and angle braces of the back edge, crown block (frame with mounted wheels and railings), gin poles disassembled into assembly units, platform of three main transport units, ladders, sites being assembly units. A-shaped frame of the hoisting device consists of three main assembly transport units: two stands with braces and installed gins and beams with a running roller. A-shaped frame is assembled and mounted before derrick rig-up. Rig-up of derrick, platform, sites and device to prevent drill pipes dropping is performed in horizontal position with hoisting to vertical position by the drawworks. Gins and cables of the device to hoist derrick are mounted on the outer side of the mast which simplifies the polyspast equipment and makes it possible not to occupy the space inside the derrick. Centering and leveling of the derrick is performed in the course of drilling using hydraulic jacks. The derrick is fastened to the basement without bracing. The assembled derrick is transported in parts by the general-purpose transport. Basement The basement of derrick and drawworks block is designed for installation of derrick with open front edge, framing with shelters, setbacks, lifting units,

auxiliary drawworks and other equipment. In the course of drilling the equipment transfers loads to the basement. Basement of derrick and drawworks unit consists of two load frames (left and right longerons) and folding parallelogram drilling floor); derrick and derrick lifting mechanism, are mounted at these frames. Folding drilling floor consists of three units: left and right folding parts of the basement and rotary module. In the course of rig-up, folding parts of the basement are mounted at the ground and rotary module is fixed between them. The working floor is lifted by block-and-tackle system and a special sling. Folding parts of the basement may be additionally equipped with dollies for their transportation by means of truck tractor and to avoid additional crane operations. Structure of derrick and drawworks block basement has a bore pit, with bushings for manual slips, for setbacks assembly in the course of drilling by means of a drilling tong AKB-4 followed by extension of a drill string with a setback, a tray, which provides collection and discharge of drilling mud to the well head. To install and move BOP stack under the rotary site, two monorails with lifting pulley blocks are provided. Drilling pump Single-acting triplex drill pump UNBT-1180L1 is designed to feed drilling mud in the course of deep oil and gas wells drilling. Pressure level in the focus points of hydraulic box cylinders is reduced up to the safe level by reducing internal diameters of the cylinders. Surface of the focus points is processed up to Ra1.6 roughness to reduce pressure level. Forged parts of alloyed steel are used as hydraulic boxes. The liner is fixed with the clam50p. Such structure is designed to provide tight contact of the liner end and hydraulic box face. The pump includes a special electric pump unit to lubricate the bearings and components of slide-crank mechanism and transmission shaft. Moreover, there is gravity lubrication supply system of the pump reducing part, which provides gravity oil supply to the friction points from oil sumps through oil lines and oil mist, oil spraying and dipping into oil. Wheel gears and gears of the transmission shaft are heat treated. High pressure pneumatic compensator of the welded-forged structure provides unevenness of output pressure of max. 5% with 35 MPa working pressure. LAND RIGS

Drilling pump Single-acting triplex drill pump UNBT-1180L1 is designed to feed drilling mud in the course of deep oil and gas wells drilling. Pressure level in the focus points of hydraulic box cylinders is reduced up to the safe level by reducing internal diameters of the cylinders. Surface of the focus points is processed up to Ra1.6 roughness to reduce pressure level. Forged parts of alloyed steel are used as hydraulic boxes. The liner is fixed with the clamp. Such structure is designed to provide tight contact of the liner end and hydraulic box face. The pump includes a special electric pump unit to lubricate the bearings and components of slide-crank mechanism and transmission shaft. Moreover, there is gravity lubrication supply system of the pump reducing part, which provides gravity oil supply to the friction points from oil sumps through oil lines and oil mist, oil spraying and dipping into oil. Wheel gears and gears of the transmission shaft are heat treated. High pressure pneumatic compensator of the welded-forged structure provides unevenness of output pressure of max. 5% with 35 MPa working pressure.

DRILLING EQUIPMENT UNITS AND COMPONENTS

CHAIN TRANSMISSION DRAWWORKS Main function of the drawworks is to reel on and to reel out as well as to stop the drilling line in the course of tripping operations. Drawworks is the main mechanism of tripping operations. Drawworks is designed to perform the following operations in well construction: Lifting and lowering of the drill pipes Lowering of casings Tools feeding to the well head Transfer of rotation to the rotary when there is no individual rotary drive Emergency hoisting of tools Drawworks are equipped with bit feed controller, auxiliary drawworks drive provides hoisting and lowering of the derrick while mounting and dismounting the drilling rig. URBO-drilling equipment manufactures chain transmission drawworks with the following drives: Adjustable drive of DC motors Adjustable drive of AC motors Diesel drives Non-adjustable drives of AC motors Structure of the drawworks makes it possible to perform hoisting of the drilling tools with simultaneous rotary rotation. System of lubrication and air pipelines is incorporated in the drawworks and makes it possible to perform drawworks equipment servicing. Speed switching in the transmission, auxiliary brake and bit feed controller switching on and switching off is performed by the switching mechanism.

LBU 1200 LBU 1200К LBU 22-720 LBU 37-1100D-I LBU 1200D-I LBU 1200D-II Maximum load capacity, t (kg) 225 (225000) 250 (250000) 200 (200000) 200 (200000) 320 (320000) 200 (200000) 320 (320000) 200 (200000) 320 (320000) Rated input power, kw 720 645 670 1100 710 710 Drilling line diameter, mm 32 28 28 35 32 32 Number of block-and-tackle system lines (string-up) 10 (5х6) 12 (6х7) 10 (5х6) 10 (5х6) 10 (5х6) 10 (5х6) 12 (6х7) 10 (5х6) 12 (6х7) Number of hoisting shaft rotation speeds 5 6 4 4 5 5 Drum size (diameter/length), mm 800/1300 650/840 635/840 685/1373 800/1030 800/1030 Brake system Band brake with equalizer Auxiliary brake option Hydrodynamic brake UTG-1450 Electromag netic brake TEP-4500 Electromag netic brake TEI-710 Electromag netic brake TEI-800 Hydrodynamic brake UTG-1450 Electromagnetic UTG- 1450 (EMT-4500) Brake drum dimensions (diameter/length), mm 1450/250 1180/250 1180/250 1270/250 1450/250 1450/250 Auxiliary drive - Auxiliary drive RPDE RPDE - Auxiliary drive Chains Clutches Dimensions (length?width?height), mm 2N-50.8 2MShU-1070, MSh-700, 2MSh-500 3N-50.8, 2N-50.8, 6N-38.1, PR-12.7-1820-1 GOST 13568-75 MShU-1070, 2MSh-700, 2MSh-500 3N-50.8, 2N-50.8, PR-12.7-1820-1 GOST 13568-75 MShU-1070 4N-50.8, 2N-50.8, 6N-38.1, PR-12.7-1820-1 GOST 13568-75 2MShU-1070, MShU-1070 2N-50.8 2MShU-1070, MSh-700, 2MSh-500 3N-50.8, 2N-50.8 2MShU-1070, MSh-700, 2MSh-500 Type Claw clutch Tooth-type clutch Tooth-type clutch Tooth-type clutch Claw clutch Claw clutch 7250х3545х2865 5750х3138х2598 6854х3208х2695 8333х3227х2208 7407х2776х2575 7430х2903х2420 26548 23440 36400 40450 ТEI-800-60 23872 24450 UTG-1450 DRILLING EQUIPMENT UNITS AND COMPONENTS

Drawworks of ET series Drawworks of ET series has a unique design. The range of drawworks with lifting capacity within 160 and 500 tons provides efficient work while tripping and drilling operations. Drawworks of ET series have been designed by URBO-drilling equipment. The unique structure of ET series drawworks makes it possible to refuse from traditional structural components: chain transmission, tire-type pneumatic clutches, electromagnetic or hydrodynamic brake, band brake and brake control handle. Size range of drawworks with lifting capacity within 160 and 500 tons has a unique kinematic configuration and structure. Drawworks are equipped with DC electric drive, operating as per scheme thyristor converter-drive. Distinctive feature of ET series drawworks: drawworks frame and gear transmission body are mounted at the welded metal ware and hoisting shaft of the drawworks and output shaft of gear transmission are combined into one unit. Drawworks are simple and compact. Their weight is much less compared to traditional chain transmission drawworks. Gear transmission of the drawworks provides quick and slow speeds at the hoisting shaft. Quick speed is required for hoisting and lowering of the drill string and elevator, slow speed is required for casing operation and accidents elimination. Multifunctional drive of the drawworks provides hoisting and adjustable lowering of the drill strings and casings, elevator up till complete stop and suspending in the fixed position; adjustable bit feed to the well head in the mode of bit feed controller. In case of main power supply failure, the motor performs hoisting of drill pipes, powered by the diesel electric power station of 200kW capacity. For fixation of the drum the disk brake is applied. The disc brake consists of two disks and two drive systems (operating and emergency). Drum with the thread for Lebus cable has protective flanges with ring straps made of low-resistant steel. Transmission has contactless seals of a peculiar structure preventing oil leak outside as well as dust and wet getting into the transmission body. The seals do not have wearable details of collar type. Remote control provides comfort working conditions. It is required to control the handle of command device of motor control system. The driller may work in the sitting position.

LBU 600 ET-3-P LBU 600 ET-3 LBU 670 ET-3 LBU 900 ET-З LBU 1100 ET-З LBU 1500 ET-З Maximum load capacity, t (kg) Rated input power, kw 160 (1600) 600 175 (175000) 200 (200000) 270 (270000) 225 (225000) 600 670 900 250 (250000) 320 (320000) 320 (320000) 400 (400000) 1100 400 (400000) 500 (500000) 1500 Wire rope diameter, mm 28 28 28 32 35 38 Number of block-and-tackle system lines (string-up) 8(4х5) 8(4х5) 10 (5х6) 12 (6х7) 10 (5х6) 12 (6х7) 10 (5х6) 12 (6х7) 10 (5х6) 12 (6х7) Number of hoisting shaft rotation speeds 2 2 2 2 2 2 Hoisting drum dimensions (diameter/length), mm 500/1190 500/1190 560/1190 640/1243 685/1243 760/1466 Brake system: Main Auxiliary Drive electric motor Spot-type disc air brake for emergency stopping and fixation Auxiliary brake hydrodynamic UTG-1450 electromagnetic TEP-4500 electromagnetic TEI-710 electromagnetic TEI-800 hydrodynamic UTG-1450 electromagnetic UTG- 1450 (EMT-4500) Dimensions of brake wheel (diameter/length), mm 1450/250 1180/250 1180/250 1270/250 1450/250 1450/250 Auxiliary drive Chains Clutches Dimensions (length?width?height), mm DC motor drive 2N-50.8 PR-12.7-1820-1 GOST 13568-75 2MShU-1070, MSh-700, 2MSh-500 MShU-1070, 2MSh-700, 2MSh-500 Derrick raising and lowering, emergency pipe pulling; DC motor drive that can function as RPE PR-12.7-1820-1 GOST 13568-75 MShU-1070 PR-12.7-1820-1 GOST 13568-75 2MShU-1070, MShU-1070 2N-50.8 2MShU-1070, MSh-700, 2MSh-500 2N-50.8 2MShU-1070, MSh-700, 2MSh-500 Type Claw clutch Tooth-type clutch Tooth-type clutch Tooth-type clutch Claw clutch Claw clutch 3320х2935х2155 4160х2930х2155 4348х2930х2155 4365х3000х2185 4397х3216х2265 7816х3558х2422 DRILLING EQUIPMENT UNITS AND COMPONENTS

DRAWWORKS MODULE LBU-750E-SNG Basis and originality of the drawworks module consists in the mounting of drawworks equipment and auxiliary drive at one frame of drawworks module. Drawworks module LBU-750E-SNG has: two-speed gear transmission, multifunction drive, contactless seals of gear transmission shafts, auxiliary drive with DC electric motor that functions as bit feed controller, emergency drive and remote control. Main drive of the redesigned drawworks module LBU-750E-SNG and its auxiliary drive transmit the torque to the hoisting shaft independently of each other from different ends of the hoisting shaft. Gear transmission of the drawworks provides quick and slow speeds at the hoisting shaft. Quick speed is required for hoisting and lowering of the drill string and elevator, slow speed is required for casing operation and accidents elimination. Multifunctional drive of the drawworks provides hoisting and adjustable lowering of the drill strings and casings, elevator up till complete stop and suspending in the fixed position; adjustable bit feed to the well head in the mode of bit feed controller. In case of main power supply failure, the motor performs hoisting of drill pipes, powered by the diesel electric power station of 200kW capacity. For fixation of the drum the disk brake is applied. Drum with the thread for Lebus cable has protective flanges with ring straps made of low-resistant steel. Transmission has contactless seals of a peculiar structure preventing oil leak outside as well as dust and wet getting into the transmission body. The seals do not have wearable details of collar type. Remote control provides comfort working conditions. It is required to control the handle of command device of motor control system. The driller may work in the sitting position.

Parameters LBU 750 E SNG Maximum load capacity, t (kg) 225 (225000) Rated input power, kw 750 Drilling line diameter, mm 28 Number of lines (string-up) 10 (5х6) Hoisting shaft rotation speeds 2 Hoisting drum dimensions (diameter/length) 560/1190 Brake disk dimensions (diameter/length) 1180/250 Main brake system Driving electric motor Auxiliary brake system Band brake with equalizer Auxiliary drive DC electric motor Clutches 2MShU-1070, MShU-1070 Transmission Gear transmission RPE transmission Dimensions (length?width?height), mm Weight, kg Gear (reducer), chain with 50.8 mm pitch 8050х3220х3450 34775 DRILLING EQUIPMENT UNITS AND COMPONENTS

MUD PUMPS Mud Pumps for drilling rigs are produced in two-cylinder (UNB) and three-cylinder (UNBT) configuration, with L-shaped and direct-flow hydraulic boxes, with capacity within 600 and 1600 kw. Mud pumps are designed to provide flushing process while hole making, drilling mud injection into the well for bottom hole cleaning and borehole cleaning off drill cuttings and its lifting to surface, drilling bit cooling and hydraulic down hole motors putting into operation. URBO drilling equipment produces pumps of the following types twocylinder pumps UNB-600 and three-cylinder single-end pumps UNBT with capacity within 600 and 1600 kw. Three-cylinder single-end pumps provide the least pressure irregularity at the output and the least wearing capacity of valves and piston rods compared to two-cylinder double-end pumps and they most precisely correspond to the requirements of drilling technology. Hydraulic seal of the cylinder-piston unit prevents air suction on the back side of the piston and gasing of the drilling mud. Besides, the unit provides lubrication and cooling of the friction between piston and cylinder. Two-chamber seal of the slide rod prevents oil leaks from the crankcase and its pollution with the drilling mud. Reducer lubrication system consists of two parts: compulsory one and gravity one from the storage bins. Compulsory lubrication system provides constant oil pressure keeping in oil lines. Forged hydraulic boxes made of high-strength alloyed steel and ion nitriding of the gear transmission guarantee the specified life time of the pump. Capacity and pressure of the pump at each diameter of the piston makes it possible to perform hole making technology by means of forced drilling mode. Safety valve of the blocking device cuts off the drive of the mud pumps when the pressure is increased in the discharge pipe with simultaneous discharge of the excess pressure. Configuration of the manufactured pumps makes it possible to apply the drive transmission on any side of the pump or on both sides.

Parameters UNBT-600 UNBT-950 UNBT-1180L UNBT-1600 Power, kw 600 950 1180 1600 Number of cylinders, pcs. 3 3 3 3 Nominal speed of piston travels per minute 160 125 125 100 Pump delivery (max), dm/sec 50,9 46 51,4 59,7 Output pressure (max), MPa 35 32 35 53 Fluid end configuration L-shaped direct-flow L-shaped L-shaped Pneumatic compensator PK40-350 PK70-320 PK70-350 PK70-530 Maximum discharge pressure irregularity, % 5 5 5 5 Pump weight without sheave, pneumatic compensator and crane, kg 13670 22070 22432 35800 Weight with sheave, pneumatic compensator and crane, kg 15450 24261 24632 - A 526 496 496 530 B 1140 1286 1286 1367 Dimensions, mm C D E F G H I 2578 3705 1120 3955 1680 2478 592 2860 2860 3116 3761 3761 4060 710 710-5390 5390 6000 2186 2186 2210 3359 3359-904 904 - DRILLING EQUIPMENT UNITS AND COMPONENTS

THEORETICAL CAPACITY AND MAXIMUM PRESSURE OF THE DRILLING PUMPS To provide optimum conditions for the drilling process by turbo drills it is required to choose the theoretical capacity of the pumps. MUD PUMP UNB-600 Piston diameter, mm 200 190 180 170 160 150 140 130 2 Maximum pressure, MPa (kgf/cm ) 10,2 (100) 11,7 (115) 12,8(125) 14,8 (145) 16,8 (165) 19,4 (190) 22,9 (225) 25,5 (250) Piston travels per minute Theoretical capacity, l/sec 65 51,9 45,7 42,0 36,0 31,5 27,5 23,3 19,7 45 36,0 31,5 29,3 24,8 22,1 18,9 16,2 13,5 35 28,0 24,5 22,8 19,3 17,2 14,7 12,6 10,5 25 20,0 17,5 16,3 13,3 12,3 10,5 9,0 7,5 15 12,0 10,5 9,8 8,3 7,4 6,3 5,4 4,5 1 0,8 0,7 0,65 0,55 0,49 0,42 0,36 0,3 MUD PUMP UNBT-600 Piston diameter, mm 190 180 170 160 150 140 130 120 * * 100 2 Maximum pressure, MPa (kgf/ cm ) 11,0 (108) 12,2 (120) 13,8(135) 15,5 (152) 17,7 (173) 20,1 (198) 23,5 (230) * 27,5 (270) 9,8 (96)* 35,7(350) Piston travels per minute Theoretical capacity, l/sec 160 51,9 57,3* 45,8 40,8 36,2 31,8 27,7 23,9 20,3 14,1 130 41,4 37,2 33,2 29,4 25,9 22,5 19,4 16,5 11,5 100 31,8 28,6 25,5 22,6 19,9 17,3 14,9 12,7 8,8 70 22,3 20,0 17,9 15,8 13,9 12,1 10,4 8,9 6,2 40 12,7 11,4 10,2 9,1 7,9 6,9 5,9 5,1 3,5 10 3,2 2,9 2,6 2,3 2,0 1,7 1,5 1,3 0,9 1 0,32 0,29 0,26 0,23 0,2 0,17 0,15 0,13 0,09 MUD PUMP UNBT-950 Piston diameter, mm 180 170 160 150 140 2 Maximum pressure, MPa (kgf/ cm ) 19,4 (190) 21,4 (210) 24,5(240) 28,1 (275) 32,6 (320) Piston travels per minute Theoretical capacity, l/sec 125 46,0 41,0 34,6 31,9 27,8 105 38,6 34,4 30,6 26,8 23,3 85 31,3 27,9 24,7 21,7 18,9 65 23,9 21,3 18,9 16,6 14,4 45 16,5 14,8 13,1 11,5 10 25 9,2 8,2 7,3 6,4 5,6 1 0,37 0,33 0,29 0,26 0,22 MUD PUMP UNBT-1180L Piston diameter, mm 190 180 170 160 150 140 2 Maximum pressure, MPa (kgf/ cm ) 21,4(210) 24,0 (235) 27,0 (265) 30,6 (300) 32,6 (320) 35,7(350) Piston travels per minute Theoretical capacity, l/sec 125 105 51,4 43,2 46,0 38,6 41,0 34,4 36,4 30,6 31,9 26,8 27,8 23,3 85 34,9 31,3 27,9 24,7 21,7 18,9 65 26,7 23,9 21,3 18,9 16,6 14,4 45 18,5 16,5 14,8 13,1 11,5 10,0 25 10,3 9,2 8,2 7,3 6,4 5,6 1 0,41 0,37 0,33 0,29 0,26 0,22 MUD PUMP UNBT-1600 Piston diameter, mm 2 0 0 190 180 170 160 150 140 130 2 Maximum pressure, MPa (kgf/ cm ) 25,1 (246) 27,8 (272) 30,9(303) 34,7 (340) 39,2 (384) 44,6 (437) 51,2 (502) 54,1(530) Piston travels per minute Theoretical capacity, l/sec 100 59,7 53,9 48,3 43,1 38,2 33,8 29,2 25,2 80 47,7 43,1 38,7 34,5 30,6 26,9 23,4 20,2 60 35,8 32,3 29,0 25,9 22,9 20,1 17,5 15,1 40 23,9 21,5 19,3 17,3 15,3 13,4 11,7 10,1 20 11,9 10,8 9,7 8,6 7,6 6,7 5,8 5,0 1 0,6 0,54 0,48 0,43 0,38 0,34 0,29 0,25 short-termed forced mode with up to 180 piston travels per minute plunger pair **

ROTARY TABLES Rotary tables are designed to rotate drilling tools and hold drill pipes in the course of well drilling. Rotary tables range from 560 up to 1260 mm. Structure of the rotary table has a secure labyrinth seal of oil reservoir, which protects from mud, thus enhancing service life of gear pair and main bearing. Bevel gears have a special-type teeth for accurate and smooth engagement and noiseless operation. Individual drive of rotary table with braking system provides variable fixation of rotary table and smooth change of rotary speed from zero to the maximum, thus enhancing accuracy of directional wells drilling. Cast rotary bed is designed for installation and fixation of the pneumatic casing grip, designed for mechanized grip and holding of oil well tubings, drill pipes, drill collars and casings in the course of tripping operations. Wedge-type pneumatic holder is controlled by the foot crane, installed next to the driller's control panel. Parameters R-700 R-950 R-1260 Rotary table opening, mm 700 Allowable static load, tf 500 950 630 1260 800 Static torque, knm 80 120 180 Maximum rotary table speed, rpm 350 350 350 Gear ratio 3,61 3,81 3,96 Weight (without bushing), kg 4790 7000 9460 Dimensions, mm A B C C 1 D E F G H I J 2270 2425 2910 680 750 800 740 875 1070 665 765 1000 1945 2065 2535 1545 1850 2230 305 330 360 1200 1550 1930 775 925 1115 2010 2165 2630 1270 - - DRILLING EQUIPMENT UNITS AND COMPONENTS

MUD CIRCULATION SYSTEMS (EQUIPMENT PACKAGES) Equipment packages of mud circulation system are designed taking into account all current requirements to fluid cleaning procedure and conform to safety rules in oil and gas industry. Hydraulic bottom hole cleaning system or mud circulation system (TsS) comprises equipment and tools as part of rig package and is designed to: Mix drilling mud of the required density and quality Clean drilling mud off cuttings Store drilling mud Degas drilling mud (if required) Chemically treat drilling mud Fill and feed drilling mud in the well Remove cuttings To provide the required quality of drilling mud cleaning, there are 4-5 cleaning stages which provide the ecological safety and reduce the harmful influence of drilling mud sludge on its technological qualities thus improving the technical and economical results while drilling. Mud circulation system includes the following equipment for cleaning with cleaning fluid: vibrating screen, desander, desilter, centrifuge and degasser which provide various level of drilling mud cleaning and prepare the sludge for disposal. The dewatered sludge of the drilling mud is collected in the special screw conveyor and is transported outside the mud circulation system for it further unloading to the truck. Mud circulation system is made of separate assembly units (blocks or modules) of the increased factory readiness with internal piping, mechanisms and cable connections which provide high rig-up and rig-down qualities. Modular configuration of the mud circulation system makes it possible to transport it to a new drilling site. Equipment modules transportation is performed by standard trailers without equipment rig-down. Modern mud circulation system provides comfort and safe labor conditions of the staff and is designed taking into account different climatic conditions. Modules and their configuration depend on the structure of the drilling rig.

Parameters 3200/200 DGU-1 Land drilling rigs 5000/320 DGU-1 6500/450 DG 8000/500 DER Cluster drilling rigs 4000/250 EK-BM 5000/320 EK-BM Mobile drilling rigs 2500/160 DER-P 2900/175 ER-P Net capacity, m? 120 270 420 600 160 205 200 120 Water tank, m? - - 54 54 54 10 50 - Liquid chemicals tank, m? - - 6 24-6 6 6 Jet hopper tank, m? - - - - 10 10 10 10 Wash fluid tank, m? - - - - 10 10 - - Cleaning equipment capacity, dm?/sec: 2 pcs. Vibrating screens 135 135 135 90 135 90 90 90 Desanders 45 45 45 90 90 90 60 60 Desilters 45 45 45 90 45 45 45 45 Degassers 45 45 45 90 40 40 40 40 3 Capacity of one centrifuge, m /hour - - 25 25 25 25 25 - Number of treatment stages 3 3 4 4 4 4 4 3 Mud mixing unit capacity, m?/hour Booster pumps delivery, m?/hour Mud line nominal ID, mm Chemical enhancement unit of centrifuges Cuttings transportation (screw conveyor) Capacity of the screw conveyor, t/hour (kg/hour) 15 15 15 15 15 15 15 15-300 450 600 300 300 300 300 300 300 300 300 300 300 300 300 - - - - - - + 5,36 (6360) + 5,36 (6360) + 10 (10000) 30 (30000) + + + 10 (10000) 30 (30000) + 10 (10000) 30 (30000) - - + 8,5 (8500) - 25,5 (25500) - DRILLING EQUIPMENT UNITS AND COMPONENTS

SWIVELS Swivel is the key element of drilling mud feeding equipment, bearing the maximum load in the course of drilling and its reliability provides safe operation of the drilling rig. Swivel is equipped with a drill hose to feed cleaning fluid from fixed manifold stand into rotating drilling strings and to hold the rotating tool while drilling. High safety requirements are fulfilled due to the following engineering solutions: The swivel uses thrust bearing with tapered rollers, thus providing the increase of swivel operational life between overhauls High alloy steel gooseneck is highly resistant to drilling fluid under high pressure Bottom part of the swivel secures oil reservoir sealing The quick release packing includes wash pipe that is plasma-hardened in the point of contact with seals To increase seal life, the seals are deployed alternatively or concurrently but at half the speed of swivel stem. Parameters Load capacity, tf (kn) UV-160МА UV-175МА UV-250МА UV-270МА UV-320МА UV-450МА UV-500МА 160 (1600) 175 (1750 250 (2500) 270 (2700) 320 (3200) 450 (4500) 500 (5000) Dynamic load capacity, tf (kn) 100 (1000) 66 (660) 160 (1600) 160 (1600) 200 (2000) 260 (2600) 300 (3000) Maximum working pressure, MPa 35 35 35 35 35 40 40 Stem opening, mm 75 75 75 75 75 75 75 Sub threaded connection to kelly (left-hand) 3-152L 3-152L 3-152L 3-152L 3-152L 3-152L 3-152L Stem threaded connection (left-hand) 3-152L 3-152L 3-152L 3-152L 3-171L 3-171L 3-171L Height (without sub), mm 2228 2228 2411 2411 2627 2990 3230 Width on bail pins, mm 950 950 1090 1090 1212 1375 1380 Weight, kg 1620 1590 2200 2200 2980 4100 5670

HOOK BLOCKS Hook blocks are traveling blocks, tightly connected to the hook. In the course of drilling, hook block is connected to the swivel, and in the course of tripping operations it is connected to the elevator. Lifting capacity of hook blocks ranges from 125 up to 500 tons. Hook block is a movable part of traveling block and is designed to perform tripping operations, to hang drill strings, casings and drilling tools in the course of drilling. Main design features: Small rotation radius and cast hook facilitate manual stacking of drill pipes The built-in elongated cast latch automatically closes and latches when the swivel is picked up Hydraulic snubber and orientator facilitate and secure hook turning and hook block handling when stands are gripped and released. UTBK 4-160 UTBK 5-270 UTBK 5-225 UTBK 6-320 UTBK 5-320 UTBK 6-400 UTBK 6-500 Load capacity, tf (kn) 160 (1600) 270 (2700) 225 (2250) 320 (3200) 320 (3200) 400 (4000) 500 (5000) Number of sheaves, pcs. 4 5 5 6 5 6 6 Sheave OD, mm 760 1120 1120 1120 1400 1400 1400 Line diameter, mm Weight, kg A B Dimensions, mm C D 28 4280 810 700 615 32 5236 32 6134 32 35 35 35 7520 7970 10410 13100 2930 3817 3950 4250 4370 4350 5280 1170 1170 1160 1450 1450 1450 770 1105 1174 960 982 1050 668 630 630 805 950 950 DRILLING EQUIPMENT UNITS AND COMPONENTS

DERRICKS Derrick is the key part of drilling rig equipment and is designed to perform the following operations: Tripping operations with drill pipes and casings Drill string hanging at traveling block while drilling with unloading Placing drill pipes and drill collars, taken out from the well Placing block-and-tackle system as well as equipment for tripping operations mechanization, particularly lifting and handling mechanisms or derrick man platform, derrick escape device, top drive and auxiliary equipment. Derricks are classified: according to their function into derricks for workover rigs, for mobile drilling rigs, for cluster and land rigs, for offshore drilling rigs; according to their structure into mast-type and tower-type derricks. Mast derricks are classified into: A-shaped, П-shaped, 4-stand and with open front edge. At the present moment design of drilling rigs specifies derrick with open front edge. The figure shows derrick mast with open front edge, made of open rolled sections. Main elements of the mast are: sections made as flat welded frames; elements of the back edge, made as beams of various cross-section (depending on the load). Such configuration of the derrick provides the following advantages: Top drive installation When mounting the basement in the bottom position, no special cranes of high lifting capacity are required, it reduces the time of rig-up and facilitates operation of the rigging crew Transportation of the derrick from one drilling site to the other one may be performed in the vertical position in large blocks and does not require additional rigup.

Parameters Derricks of mobile drilling rigs Derricks of cluster drilling rigs Derricks of land drilling rigs UM 31-160 ОG-R UM 31-175 OG-R UM 45-225 R UM 45-250 R UM 45-270 R UM 45-450 АR UM 45-320 А VMR 45-320- II Um4 45-500 АR-SVP UM 46-600 OG-R Allowable hook load, tf (kn) 160 175 (1600) (1750) 225 (2250) 250 (2500) 270 (2700) 450 (4500) 320 (3200) 320 (3200) 500 (5000) 500 (5000) Maximum static load, tf (kn) 190 (1900) 210 (2100) 270 (2700) 300 (3000) 325 (3250) 540 (5400) 385 (3850) 385 (3850) 600 (6000) 600 (6000) Distance from rotary table to crown block bottom, m 31 31 45,7 44,8 44,8 45,3 44,9 45,1 45,4 46 Distance between centerlines of support bottom and top hinges, m 34,66 34,7 47,6 47,8 47,6 44,5 47,6 47,6 44,5 45,4 Bottom base (distance between centerlines of support hinges of derrick legs), m: along receiving catwalk centerline 1,5 1,5 - - - 11 - - 11 - across receiving catwalk centerline 3,2 3,2 10,3 10,3 10,3 8 10,3 10,3 8 10 along receiving catwalk centerline 0,91 0,91 2,3 2,3 2,3 3,1 2,3 2,3 3,1 - across receiving catwalk centerline 1,7 1,7 2,6 2,93 2,93 2,15 2,93 2,93 2,2 - Rack capacity, m: for pipes BT-114 mm 3180 3780 4950 5625 5625 - - - - 6750 for pipes BT-127 mm 2700 3060 4500 5000 5000 - - - - 5400 for pipes BT-147 mm - - 3750 4500 4500 - - - - 4860 DRILLING EQUIPMENT UNITS AND COMPONENTS

ROUND TRIP EQUIPMENT Round trip equipment is designed to automate tripping operations while onshore and offshore drilling of oil and gas wells. It is optionally installed on derricks of various configuration. Round trip equipment provides mechanization of all stalks tripping operations. Round trip equipment reduces time for tripping operations compared to the manual stacking by 35-40%. Time saving is mainly achieved by combining independent operations. Round trip equipment is controlled by one person by means of a panel control which is installed at the setback level. Most units of the round trip equipment are designed for all types of the drilling rigs. Round trip equipment for offshore drilling rigs provides installation of auxiliary mechanism for stalks stacking and intermediary magazine. Round trip equipment includes: centralizer, stalks racking device, stalks catching device, lifting mechanism, control panel, setback and rack, automated multipurpose elevator. Equipment is designed to operate in combination with a special design tackle system, stationary automated drill tong of AKB or KBG type, air operated rotary slips. Parameters ASP-3М1 ASP-3М4 ASP-3М5 ASP3М5-500 KMSP 6500 KMSP 6500BS Setback capacity (114 mm pipe diameter), m Automated elevator load capacity, kn Drill pipe diameter, mm Drill collar diameter, mm Stalk length, mm Number of sections in setbacks Air pressure in cylinders of stalk lifting mechanism, MPa Load capacity of stalk lifting mechanism at 0.59 MPa, kn Capacity of hoisting boom and dolly electric motors, m/sec 4200 6000 8200 8200 8200 8200 4000 4000 4000 4000 4000 4000 89-146 89-146 89-146 89-146 89-146 89-146 108,146, 178,203 108,146, 178,203 108,146, 178,203 108,146, 178,203 108,146, 178,203 108,146, 178,203 25-29 25-29 25-29 25-29 25-29 25-29 2х7 2х9 2х11 2х11 2х7 2х7 0,59-0,88 0,59-0,88 0,59-0,88 0,59-0,88 0,59-0,88 0,59-0,88 52 52 52 52 52 52 3,5 3,5 3,5 3,5 4,5 4,5 Speed of dolly and beam, m/sec Control Weight, including spare parts, tools and accessories (lengthxwidthxheight), kg 0,4 0,4 0,4 0,4 0,4 0,4 Remote control panel 1950 24300 31180 39000 56600 95000

TOP DRIVE Top drive is a conceptually new type of equipment for drilling rigs that covers a whole range of operations. Top drive is a movable rotator, equipped with devices for tripping operations. Top drive is designed for quick and fail-safe drilling of vertical, directional and horizontal wells. Top drive combines the functions of a swivel and rotary table and is equipped with several mechanisms for operation with drill pipes in the course of tripping operations. Main advantages of top drive system: Time saving while drill pipes connection Reduced risk of drilling tool sticking Borehole reaming while tripping More accurate directional drilling Enhanced safety of the drill crew Less probability of fluid blowout from the well through drill string Easier casing running in problem zones due to rotation and washover Better quality of core. Top drive with lifting capacity within 320 and 500t is one of the first systems of that kind designed and manufactured in Russia. Design documentation of top drive underwent international technical examination by Woodland Systems, Inc. (USA). Parameters Allowable load, tf Reduction ratio Torque: - Long-term torque, knm - Short-term torque, knm Maximum speed at torque, rpm Maximum speed of rotation, rpm Adjustable speed range, % Breakout torque, knm Maximum fluid (drilling mud) injection pressure, MPa Nominal ID, mm Working pressure of ball valves (internal preventers), MPa Drill pipe diameter, mm Type of electric motor Nominal motor speed, rpm Maximum motor speed, rpm Motor power, kw 75 SVP-320, SVP-500 320 tf for SVP-320, 500 tf for SVP-500 6,35 41 62 157 236 0-100 80 40 70 89,102,114,127,140,146 adjustable, direct current, manual control, explosion proof 1000 1500 750 DRILLING EQUIPMENT UNITS AND COMPONENTS

MECHANIZED CATWALK MPM-3 Mechanized catwalk MPM-3 serves as a work area from which drill pipes, drill collars and casings are supplied to the drill floor through horizontal or inclined guides. Mechanized catwalk is remotely controlled. Benefits of mechanized catwalk: There is no need to use an auxiliary hoist for pipe handling The pipe is held in the inclined guide Reduced injury rate during catwalk operations Controlled laying down of drill pipes and drill collars upon completion of drilling Reduced time of pipe pickup and laying down. Parameters Pipe length, m Pipe weight, kg Dolly and carriage speed, m/sec Control Weight, kg Mechanized catwalk MPM-3 6-12,5 3000 0,35 remote control panel 15600 The dolly is driven through the horizontal bridge and the carriage is driven through the inclined guide: Motor capacity, kw Speed of rotation, rpm 15 955

Derrick Emergency Escape Device Drilling rigs manufactured by URBO drilling equipment, in conformity with safety rules in oil and gas production, are equipped with derrick emergency escape device. This device helps a derrickman evacuate from the derrick in case of fire, blowout or any other emergency situations. Components of this device are mounted at the derrick, derrickman's platform and outside the rig, at least 60 m away from the well. The carrying cable between the derrick and the tensioning device holds the carriage and the cabin. The carriage and the cabin it holds are located near the derrick man's platform and are fixed by an eccentric normally-closed brake. If an emergency situation occurs, the derrickman should enter the cabin, sit down in the seat, pull the emergency brake handle. The carriage and the cabin will start moving. The cabin speed is controlled by a hydrodynamic brake or, if required, by a hand brake. Parameters Cabin load capacity, kg Average cable inclination, degrees Derrick Emergency Escape Device 120 30 Cable size, mm 15,5 Cabin descent speed, m/sec Descent speed control Evacuation distance, m Weight, kg 4 hydraulic brake min. 60 1600 DRILLING EQUIPMENT UNITS AND COMPONENTS

DRILLER'S CABIN Driller's cabin is designed to store controls and control instrumentation and is a comfortable working place of a driller for remote control of equipment and drilling rig units. Driller's cabin is mounted on the drill floor. Equipment of the driller's cabin is located in the heated cabin body. Two walls, door and part of the ceiling are equipped with impact-resistant windows, resistant to icing and weeping. Roof windows have wipers of scraper type and screen washers. Screen washers clean at least 70% of the surface. Screen wiper and washer have a pneumatic drive. The cabin is equipped with a reservoir for screen washing fluid. Air supply into screen washing fluid tank is carried out by ball taps with butterfly handle, mounted at the side wall of driller's pneumatic control. Screen washing fluid is non-freezing, used for cars' screens. The cabin has a temperature control system provided by electric heaters with heat controllers. Metal frame of the cabin has canals and holes for electric cables and pipelines of the pneumatic system. The frame holds pneumatic driller's panel and driller's seat. Above the pneumatic panel the place is provided for installation of top drive control panel. Control handles and buttons have clear Russian captions at the tables, specifying the functions of the control body and direction of mechanisms movement. The tables are made of stainless steel, the marking is engraved, type size is min.10 mm. The tables specify mechanisms which are driven by these control bodies. Cabin body is installed at bumpers, providing less vibration at the driller's workplace. Video-screening device of television system includes display, installed in driller's cabin and 4 video-cameras. First video-camera is installed to monitor drawworks spooling, second video-camera is installed in the cleaning module of mud circulation system near vibrating screens, the third one is mounted at the well head to monitor preventers operation, and the fourth one at the derrick man's platform to monitor top drive system operation.

Drilling Equipment Packages Drilling equipment packages are designed to equip and modernize drilling rigs and include key components and units. Packages are produced for drilling rigs, with diesel as well as electric drive of main components. Packages include drawworks, mud pump, rotary table, swivel and block-andtackle system, i.e. all the equipment except metal ware of derrick and floor, mud circulation system, manifold and shelters. Parameters NBO-D NBO-E BU 3D86-1 BU 3D86-2 Allowable hook load, tf 225 225 320 320 Nominal drilling depth, m 3600 3600 5000 5000 Hook speed during reciprocation, m/sec 0,19 0,18 0,16 0,16 Elevator speed (without load), m/sec 1,58 1,5 1,43 1,43 Rated input power of hoisting unit, kw 710 700 690 690 Rotary table opening, mm 700 700 700 700 Rated rotary drive power, kw Mud pump power, kw Type of drive Setback capacity (stands 114 mm dia, 25m) Substructure height (drill floor elevation), m Clearance for BOP installation, m 370 600 diesel - - - 370 370 370 600 600 600 electric diesel diesel - 4000 4000-6,5 6,5/8,0-5,2 5,2/6,7 DRILLING EQUIPMENT UNITS AND COMPONENTS

CONTACTS Management Company LLC Integra Management 6, Prospect Vernadskogo, Moscow, 119311, Russia Tel.: +(495) 933 06 21 Fax: +7 (495) 933 06 22 E-mail: reception@integra.ru Web: www.integra.ru URBO-drilling equipment Ltd. Pervaya Pyatiletka Square, Yekaterinburg, 620012, Russia Tel.: +7 (343) 270 10 00, 270 11 01, 270 10 64 Fax: +7 (343) 270 10 01 E-mail: rig@integra.ru Web: www.integra.ru

Tel.: +7 (495) 933 06 21 Fax: +7 (495) 933 06 22 E-mail: reception@integra.ru Web: www.integra.ru 2009