Fishing Jar. Fishing Jar Accessory Tools. Assembly and Operation. Construction. Recommended Spares

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1 Fishing Jar Accessory Tools Fishing Jar The Gotco Hydraulic Fishing Jar is an easy-to-use accessory tool that assists in various operations such as fishing, testing, coring, reaming, and washover. Designed to be installed in the string above the fishing tool assembly, it allows the operator to deliver an upward blow to the equipment installed in the string below the jar. This is particularly helpful when the string is stuck or restricted and cannot be lifted only by pulling. Fishing jars are constructed from high-strength, impact-resistant alloy. Specially heat treated to provide the ultimate in toughness and durability, this field proven tool is simple and easy to operate. For fishing operations the jar should be installed below a string of drill collars. (For other applications, see technical manual.) Lower the string and engage the fish. Once engaged, simply pull upward, stretching the drill string. The jar will begin to open slowly as the piston meters the hydraulic fluid in the jar. Once the jar has opened approximately half of its full stroke, the piston will release and the jar will suddenly open fully, releasing the energy stored in the stretched drill string, delivering the desired impact. The amount of impact is determined by the amount of stretch applied to the string. This provides the operator with complete control over the impact applied. No adjustments to the tool are required. Once the jar has been tripped it can be quickly reset by lowering the string and allowing the jar to close. Heavy-duty splines allow for full torque transmission at any time. For maximum effectiveness, also use a jar impact amplifier. Connection Size 2 3 /8 API Reg 2 7 /8 API Reg 2 3 /8 API IF 2 3 /8 EUE 2 7 /8 API IF Outside Diameter 3 1 /8" 3 3 /4" 3 3 /4" 3 3 /4" 4 1 /4" Inside Diameter 1" 1 1 /4" 1 1 /2" 1 7 /8" 1 15 /16" Free Stroke 4 3 /8" 4 1 /8" 3 15 /16" 3 13 /16" 4 3 /16" Type Jar Int Mand Int Mand Sub Sub Int Mand Gotco Part No. FJ-31 FJ-136 FJ-36 FJ-236 FJ-42 XRef No Connection Size 2 7 /8 EUE 3 1 /2 API FH 3 1 /2 API IF 4 1 /2 FH 4 1 /2 IF Outside Diameter 4 1 /2" 4 3 /4" 4 3 /4" 6" 6 1 /4" Inside Diameter 2 3 /8" 1 1 /2" 2" 2" 2 1 /4" Free Stroke 5 3 /16" 4 7 /16" 5 1 /16" 4 5 /16" 6 1 /2" Type Jar Int Mand Int Mand Int Mand Int Mand Int Mand Gotco Part No. FJ-44 FJ-146 FJ-46 FJ-60 FJ-62 XRef No Connection Size 5 1 /2 Reg 6 5 /8 Reg 6 5 /8 Reg 7 5 /8 Reg Outside Diameter 6 3 /4" 7 3 /4" 8 9" Inside Diameter 2 3 /8" 3 1 /16" 3 1 /16" 3 3 /4" Free Stroke 6 1 /2" 6 1 /2" 6 1 /2" 6 1 /2" Type Jar Int Mand Int Mand Int Mand Int Mand Gotco Part No. FJ-66 FJ-76 FJ-800 FJ-90 XRef No How to Order Size and type of connection, if nonstandard. O.D., if nonstandard. Recommended Spares (2) 1 Washpipe (3) 2 Piston Assemblies (4) 16 Non-Extrusion (5) 16 Seal Protector (6) 4 Mandrel (7) 4 Middle (8) 8 Packing Sets (9) 1 Mandrel Setting Tool (10) 1 Piston Setting Tool Fishing Jar 29

2 Accessory Tools The is a highly dependable accessory tool. Suitable for all fishing operations, it has proven to be especially successful in surviving harsh down-hole applications. The tool design allows full torque and unrestricted fluid circulation at all times. Standard stroke is 20 inches; other stroke lengths are available on request. Typical operations include releasing stuck drill pipe, drill collars, tubing, test tools, and safety joints. Also, the fishing bumper sub functions well when used with an overshot or spear. Connection Size, in /16 WFJ 1 EUE TBG 1 1 /4 Reg 2 3 /8 WFJ 2 3 /8 EUE Outside Diam. in / / /4 2 1 /2 3 1 /8 Inside Diam. in. 3 /8 3 /8 1 /2 1 / /32 Gotco Part No. BSK-5 BSK-10 BSK-15 BSK-20 BSK-25 Connection Size, in. 2 3 /8 Reg 2 3 /8 IF 2 3 /8 IF 2 7 /8 Reg 2 3 /8 Eue Outside Diam. in. 3 1 /8 3 3 /8 3 3 /4 3 3 /4 3 3 /4 Inside Diam. in /2 1 1 /4 1 7 /8 Gotco Part No. BSK-30 BSK-34 BSK-36 BSK-40 BSK-41 constructed from specially heat treated high-strength alloy steel to withstand severe stress resulting from tension, jarring, and torque. A double-seal piston assures full circulation through the tool during fishing operations. installed in the fishing string immediately above the fishing tool or safety joint. To apply a sharp downward blow, mark the pipe at surface to indicate open and closed positions of bumper sub. Raise fishing string to open bumper sub and allow for some additional pipe stretch. Drop string sharply and stop with the brake approximately 4 to 6 inches above the closed position of bumper sub. As the fishing string springs downward, the bumper sub will deliver a sharp downward blow. To apply a solid downward blow, raise fishing string to open bumper sub plus exert a slight stretch in string. Drop full weight of pipe without braking to deliver a strong downward blow. To apply an upward blow, mark pipe at surface to indicate open and closed positions of bumper sub. Raise fishing string to open bumper sub plus exert moderate strength in string. Drop string by the amount of pipe stretch only and catch it with the brake. As pipe recoils at the bottom of the hole, the bumper sub will deliver a sharp upward blow. Connection Size, in. 2 7 /8 IF 2 7 /8 EUE 2 7 /8 IF 3 1 /2 Reg 3 1 /2 FH Outside Diam. in. 4 1 /8 4 1 /2 4 1 /4 4 1 /4 4 5 /8 Inside Diam. in. 1 1 /2 2 3 / / /2 1 7 /8 Gotco Part No. BSK-42 BSK-44 BSK-46 BSK-47 BSK-49 Connection Size, in. 3 1 /2 FH 3 1 /2 IF 3 1 /2 IF 4 1 /2 Reg 4 1 /2 FH Outside Diam. in. 4 5 /8 4 3 /4 4 3 /4 5 1 /2 5 3 /4 Inside Diam. in / Gotco Part No. BSK-50 BSK-54 BSK-56 BSK-66 BSK-69 Connection Size, in. 4 1 /2 FH 4 1 /2 IF 4 1 /2 IF 5 1 /2 Reg 6 5 /8 Reg Outside Diam. in /8 6 1 /4 6 3 /4 7 3 /4 Inside Diam. in /4 2 1 /4 2 3 /4 3 1 /2 Gotco Part No. BSK-600 BSK-74 BSK-75 BSK-85 BSK-101 Connection Size, in. 6 5 /8 Reg 7 5 /8 Reg Outside Diam. in. 8 9 Inside Diam. in. 3 1 /2 4 Stroke, in Gotco Part No. BSK-102 BSK-105 How to Order Gotco Connection, if nonstandard. Stroke length, if nonstandard. Standard Components composed of five major parts: the mandrel, kelly sub, piston, barrel, and top sub. The mandrel includes a hex kelly that is engaged by the kelly sub to transmit torque. The barrel has a preci- sion honed I.D. to assure a positive seal with the piston. Optional Components and Accessories Stroke lengths up to 60 inches are available upon customer s request. 30

3 Jar Impact Amplifier Accessory Tools Jar Impact Amplifier The Gotco Jar Impact Amplifier is a vital accessory tool designed to be run with the Gotco Hydraulic Fishing Jar. It will accelerate the upward motion of the drill collars and the fishing jar allowing the operator to apply significantly greater impact to the fish. This is particularly helpful in deviated holes where friction may reduce the impact of the jar or in shallow holes where there is insufficient string length to provide adequate stretch to the running string. Acting also as a shock absorber to the rebounding string, the jar impact amplifier will protect tools and string from damage. Connection Size 2 3 /8 Reg 2 3 /8 IF 2 3 /8 EUE 2 7 /8 Reg 2 7 /8 IF Outside Diameter 3 1 /8" 3 3 /4" 3 3 /4" 3 3 /4" 4 1 /4" Inside Diameter 1" 1 1 /2" 1 7 /8" 1 1 /4" 1 15 /16" Total Stroke 8 3 /4 7 7 /8 7 5 /8 8 1 /4 8 5 /8 Jar Used With FJ-31 FJ-36 FJ-236 FJ-136 FJ Gotco Part No. AMP-31 AMP-36 AMP-236 AMP-136 AMP-42 XRef No Connection Size 2 7 /8 EUE 3 1 /2 FH 3 1 /2 IF 4 1 /2 FH 4 1 /2 IF Outside Diameter 4 1 /2" 4 3 /4" 4 3 /4" 6" 6 1 /4" Inside Diameter 2 3 /8" 1 1 /2" 2" 2" 2 1 /4" Total Stroke 10 3 /5 8 7 / /8 8 5 /8 13 Jar Used With FJ-44 FJ-146 FJ-46 FJ-60 FJ Gotco Part No. AMP-44 AMP-146 AMP-46 AMP-60 AMP-62 XRef No Connection Size 5 1 /2 Reg 6 5 /8 Reg 6 5 /8 Reg 7 5 /8 Reg Outside Diameter 6 3 /4" 7 3 /4" 8 9" Inside Diameter 2 3 /8" 3 1 /16" 3 1 /16" 3 3 /4" Total Stroke Jar Used With FJ-66 FJ-76 FJ-800 FJ Gotco Part No. AMP-66 AMP-76 AMP-800 AMP-90 XRef No Manufactured from high strength alloy and heat treated for maximum toughness, the jar impact amplifier is both rugged and reliable. Heavy splines allow the application of full torque and a generous through bore offers unrestricted circulation at all times. Operation The jar impact amplifier should be located in the string immediately above the drill collars. No presetting is required. When a stretch is applied to the string, the jar impact amplifier fluids are compressed, storing additional energy. When the jar trips, this energy is released. The tool will automatically reset, each time the jar trips, and will continue to operate as many times as necessary to free the fish. Service Kit A service kit is required to properly redress and fill the hydraulic jar. One kit will service all Gotco Jars and Jar Impact Amplifiers. Setting Tools A mandrel body setting tool is required for each size of jar impact amplifier. Setting tools are used to properly position and set the standard copper back-up and non-extrusion rings. How to Order Gotco Jar Impact Amplifier Size and type of connection, if nonstandard. O.D., if nonstandard. Recommended Spares (2) 1 Washpipe (3) 2 Piston Assemblies (4) 16 Non-Extrusion (5) 16 Seal Protector (6) 4 Mandrel (7) 4 Middle (8) 8 Packing Sets (9) 1 Mandrel Setting Tool Jar Impact Amplifier 31

4 Accessory Tools Lubricated Lubricated The Gotco Lubricated Fishing is designed to withstand repetitive and sustained loads in severe fishing, drilling and well workover operations. The tool can be stroked upward or downward. The average stroke is between 10 and 18. Longer strokes can be furnished upon request. Mandrel Seal Kit Fill Plug Mandrel The Gotco Lubricated is manufactured from high-grade alloy steel. The tool is engineered to reduce high degrees of stress concentration in critical areas of the tool. This promotes longer service life and a better quality tool. The Gotco Lubricated is normally installed in the fishing string just above the fishing tool, safety joint or unlatching joint. Heavy-duty splines allows for transmitting full torque at all times during operation. Striking surfaces are provided at the limits of the free stroke movement to produce the impact necessary for achieving the greatest intensity of bumping action in either direction. The primary function of the Lubricated Bumper Sub is to enable the operator to release the fishing tool in the event that it becomes impossible to pull the fish. It will provide the necessary impact and deliver the torque required to release the tool from the fish. The Lubricated Bumper Sub can also be used to release the recovered fish at the top of the hole, or be used to Jar Up or Bump Down in the hole. Standard Components The Lubricated Bumper Sub is composed of six major parts: the Mandrel, Knocker, Washpipe, Middle, Mandrel and Washpipe. The critical seal points of the Mandrel and Washpipe are equipped with a seal-ring assembly consisting of an O- ring, Non-Extrusion Ring and Seal Protector Ring. This Seal Ring set keeps the diametrical clearance at the seal points to an absolute minimum as hydraulic pressure is applied from either direction in the tool. This greatly increases the life of the O-Ring and seal set by prohibiting O-Ring extrusion. Middle Knocker Gotco Lubricated s Connection Size 2 3 /8 I.F. 3 1 /2 I.F. 4 1 /2 I.F. 6 5 /8 Reg. Outside Diameter 3 3 /4 4 3 /4 6 1 /4 7 3 /4 Inside Diameter 1 1 / /8 3 1 /2 Total Stroke 15 1 / / Gotco Part No. LBS-36 LBS-46 LBS-62 LBS-76 XRef. No Fill Plug Washpipe Knocker Washpipe Lubricated Other sizes available upon request. How to Order Gotco Lubricated Bumper Subs Size and type of connection if other than standard. Outside diameter, if other than standard. Recommended Spares: (2) 6 Seal Packing Sets (3) 4 Middle (4) 4 Mandrel (5) 16 Main Mandrel Non- Extrusion (6) 16 Main Mandrel Seal Protector (7) 1 Seal Ring Setting Tool 32

5 Drilling Safety Joints Accessory Tools Drilling Safety Joint The Gotco Safety Joint is manufactured to provide safe and easy release and make-up whenever disengagement becomes necessary. This dependable, field-tough tool is designed to transmit torque in either direction when placed in the drill, fishing, or washover string. Components The safety joint consists of a pin section, a box section, and a friction ring. The internal connection of the safety joint is a coarse acme thread used to facilitate easy pack-off and re-engagement. A knurled release ring between the box and pin sections maintain torsion integrity until back-off procedure is initiated. An O-ring seal contains pressure while the safety joint is made up. To assemble, install the safety joint in the drill string as indicated below. Make up the service connection to a torque of approximately 60 to 75% of the drill string connections. In drill strings, the safety joint should be located above the drill collars to avoid compression. In fishing strings, the safety joint should be located directly above the fishing tool but below the jar or bumper sub. In washover strings, the safety joint should be located between the drill pipe and the washover pipe. Gotco Washover Safety Joints are provided with a tool joint box thread and a washover pipe pin thread. To disengage the safety joint while down-hole, place pipe in tension and apply left-hand torque. Hold torque while slowly lowering pipe until safety joint breaks. Continue to unscrew safety joint to the left. To re-engage the safety joint, lower pipe until pin section of safety joint lands on box section. Apply one point of weight. Rotate to the left one or two turns. Then rotate to the right until torque builds up, indicating safety joint is made up. Drilling Safety Joint How to Order Gotco Safety Joints Connection. O.D. and I.D., if nonstandard. Connection 2 3 /8 EUE 2 3 /8 REG 2 3 /8 IF 2 7 /8 EUE 2 7 /8 REG 2 7 /8 IF 3 1 /2 REG 3 1 /2 FH Tool OD 3 1 / /8 3 3 / / /4 4 1 /8 4 1 /4 4 1 /2 Tool ID 1 3 / /4 2 7 / /4 2 1 /8 1 1 /2 2 1 /16 Gotco Part No. DSJ-306 DSJ-312 DSJ-337 DSJ-365 DSJ-375 DSJ-412 DSJ-425 DSJ-450 Connection 3 1 /2 FH 3 1 /2 IF 3 1 /2 IF 4 IF 4 1 /2 IF 4 1 /2 IF 4 1 /2 IF 5 1 /2 REG Tool OD 4 5 /8 4 3 / /4 6 1 /8 6 1 /4 6 1 /2 6 3 /4 Tool ID 2 7 / / / /4 3 3 /4 3 3 /4 3 3 /4 2 3 /4 Gotco Part No. DSJ-462 DSJ-475 DSJ-500 DSJ-575 DSJ-612 DSJ-625 DSJ-650 DSJ-675 Connection 5 1 /2 FH 6 5 /8 REG 6 5 /8 REG 6 5 /8 REG 6 5 /8 IF 7 5 /8 IF 7 5 /8 Reg 8 5 /8 Reg Tool OD / /4 8 1 / /4 10 Tool ID /2 3 1 /2 3 1 / / /4 Gotco Part No. DSJ-700 DSJ-775 DSJ-800 DSJ-825 DSJ-850 DSJ-900 DSJ-925 DSJ