Advancements in Drilling Technology

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Juniper Beasley
7 years ago
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1 Advancements in Drilling Technology

2 ONGC Activities

3 Types of Rigs

4 Deep water Development

5 CROWN BLOCK MAST CATLINE BOOM STAND PIPE MONKEY BOARD TYPICAL LAND RIG LAYOUT TUBING BOARD FLARE LINE DRILL PIPE CATWALK WATER TANK DOG HOUSE PIPE RACK MUD SACK STORAGE MUD TANKS HYDRAULIC POWER UNIT PUMPS AND HOPPER MUD PUMP CABLE TRAY DRILLING LINE SPOOL ACCUMULATOR JUNK BIN GENERATORS WAREHOUSE

6 Rig components Rotary Table Engines Tanks & Pumps

7 Functions of Rig Components

8 DrillString

9 Types of Rotary Bits

10 Well Configuration

11 Emerging Technologies in Drilling

12 Emerging Technologies Horizontal & Multilateral Drilling Expandable Casings Deepwater Drilling Air Percussion Drilling New Generation Rigs Slant Rig Modular Rig Casing Drilling Coiled Tubing Drilling Under-Balanced Drilling (UBD)

13 Types of Directional Drilling

14 Horizontal & Multilateral Drilling Technology Drilling of different pay zones horizontally Advantages Increased drainage for better productivity Status After successful implementation in offshore, being used in Gujarat and Assam Assets.

15 Technology Expandable Casing Involves cold-working the tubular downhole as an additional casing Advantages Deepening of existing wells Reduces the telescopic effect in deep wells / deepwater wells Contingency solutions for different drilling complications. Large bore sizes for sustained enhanced production Eliminates the use of larger casings in upper section Can be used as liner hanger also. Status Currently being used in Mumbai Region

16 Bi center bit

17 Expandable Casing

18 Table of Expandable Product System Sizes Base Casing Expandable-Tubular System (approximate inches) OD (in.) Weight (Ib/ft) ID (m.) Wall (in.) Drift ID (in.) Pre-expansion Initial Wall Post-expansion OD ID ID OD d e e e e d e d

19 Applications of Expandable Technology

20 Offshore Rigs (including Deepwater)

21 Jack-up Rig Mast or derrick Hull Leg s 21

22 Deep-Water Drilling Jack up rigs cannot be utilized for drilling beyond 200 metres Floaters deployed beyond 450m are termed as deepwater rigs Beyond 1500m is considered as Ultra- Deepwater Mainly DP rigs are deployed in Ultra-deep waters Current world water-depth drilling record of 10,194 feet (3,107 m) in east coast of India

23 Sagar Vijay

24 SEMI-SUBMERSIBLES

25 Anchor

27 DP System

28 DP System

29 Subsea BOP

30 BOP and Risers

31 Risers

32 Buoyant Riser

33 DDKG 1

34 Intervention Model

35 Dual Derrick Rig

36 Deep water Spar

37 Modular Rig

38 Technology Modular Rig Low capacity modular rig designed to work as platform rig whereby overcoming pug mark issues. Advantages Ideal for drilling of side tracks, workovers and related drilling operations specially in offshore Less footprint Cost effective drilling of mature reservoirs Low CAPEX High Flexibility Status Currently being used in Mumbai Region

39 Air Drilling 50 m of top hole took 140 days Consumed 30 nos of 26 & 26 nos of other bits Total cost around 18 cr Rig less air drilling of 255 m took 32 days Amount spent -3.5 cr

40 Air Percussion Drilling (Air Hammer Drilling) Hammering action of bit on formation Pulverizes the rock, using a rapid-action pneumatic hammer tool and hammer bit. Useful for drilling very hard rocks, such as granite with >10000 psi compressive strength Tool driven by compressed air (or mist/foam). Air also flushes the cuttings and dust from the borehole.

41 Air / Mist / Foam Drilling Layout

42 Turbo Drilling 1454 m of 8 ½ section took 72 days with av ROP of about 20 m/day Where as 529 m of conventional drilling took 75 7 m/day Total cost of turbo drilling package was Rs 5 cr including bits and services

43 Impreg bit

44 Turbo Drilling Advantages Nearly 3 times ROP No bit failure No under gauging of hole Less wear & tear of drill string Minimal tripping

45 New Generation Rigs Technology Advanced generation rigs for land operations Advantages Less footprint Faster rig-up and rig-down Faster rig move Advanced automation for increased efficiency

46 IDM Quicksilver Flex Rig Rig Up/Rig Down within 100 miles in 48 Hrs. Rig loads 22 loads Mast + S.structure 4 loads No crane required in RU/RD Two mud Tank + Equipment skid Mud tanks round bottom Improved Portability Top drive Drilling System AC drive Drill with stands Split Block Wire line Access

47 Coiled Tubing Unit

48 Technology Coiled Tubing Drilling Oil-well drilling using seamless, jointless coiled tubing as drill-string. Advantages Deepening of existing wells Quick mobilization, compact loads Elimination of tool joint connections Continuous fluid circulation Safer than conventional well drilling Reduced environmental impact

49 New Generation Rigs These rigs can drill with both jointed drill pipe and coiled tubing. The rigs can drill and case the surface hole with jointed pipe and then drill to TD with coiled tubing.

50 Slant Rig

51 Technology Slant Drilling Drilling of shallow inclined wells by use of slanted derrick Advantages Less footprint less expensive, faster and more productive than conventional directional & horizontal drilling for shallow wells Disadvantage Only slant rig can be used for work over etc

52 Casing Drilling Technology Casing Drilling involves integrating casing running with drilling. This process uses standard oilfield casing to drill the well and then leaves it in place to case the well. Advantages Effective for drilling of caving prone troublesome zones speeds up drilling 20 to 30 percent or more improves operational efficiency and safety Less footprint

53 Casing Drilling Downhole Tools Wireline Retrievable BHA Running & Retrieving Tool Axial Locks Tool Locator Torque Locks Mud Motor, Directional Tools or Logging Assembly as required Underreamer Bit Drill Lock Assembly (DLA) Casing Drilling Assembly Connection Ring Wear Band Casing Casing Profile Nipple Centralizers as req d Casing Shoe Underreamer Bit 53

54 Casing Drive System API 6 5/8 REG RH CONNECTION API 6 5/8 REG RH CONNECTION HYDRAULIC ACTUATOR LENGTH 10 TRIP & TORQUE GRAPPLE CUP PACKER STABBING GUIDE 54 4 ½ to 20 tool sizes available

55 Tesco Casing Drilling Surface Equipment Split Blocks Wireline BOP Top Drive Power Slips Casing Running Tool (Internal) Single Joint Links and Elevator Power Catwalk Wireline Winch 55

56 Conventional Underbalanced

57 Technology Under-Balanced Drilling is a procedure used to drill oil and gas wells where the hydrostatic pressure in the wellbore is kept lower than the fluid pressure of the formation being drilled. Advantages Enhanced productivity Faster well Activation Eliminates formation damage. Increases Rate of Penetration (ROP). Reduces Lost Circulation. Eliminates Differential sticking.

58 UBD / MPD Surface Layout

Maersk Resilient. Maximised drilling efficiency and uptime. Optimised for concurrent activities

Maersk Resilient. Maximised drilling efficiency and uptime. Optimised for concurrent activities Maersk Resilient Maximised drilling efficiency and uptime Optimised for concurrent activities Maersk Resilient TYPE MSC CJ50-X100 MC, 350 ft jack-up drilling rig BUILT Keppel FELS, 2008 CLASS American