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

(1)

Fishing Jar –

Accessory Tools

Construction

Fishing jars are constructed from high-strength, impact-resis-tant alloy. Specially heat treated to provide the ultimate in toughness and durability, this field proven tool is simple and easy to operate.

Assembly and Operation

For fishing operations the jar should be installed below a string of drill collars. (For other applica-tions, 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, deliv-ering 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 trans-mission at any time. For maxi-mum effectiveness, also use a jar impact amplifier.

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 restrict-ed and cannot be liftrestrict-ed only by pulling.

How to Order Gotco Fishing Jars

When ordering, please specify:

• Name and part number of assembly. • Size and type of connection, if nonstandard. • O.D., if nonstandard.

Gotco Fishing Jars Connection Size 23_/

8API Reg 27/8API Reg 23/8API IF 23/8EUE 27/8API IF

Outside Diameter 31_/₈_" ₃3_/₄_" ₃3_/₄_" ₃3_/₄_" ₄1_/₄_"

Inside Diameter 1" 11_/

4" 11/2" 17/8" 115/16"

Free Stroke 43_/

8" 41/8" 315/16" 313/16" 43/16"

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. 52504 52506 52528 52497 52502 Gotco Fishing Jars

Connection Size 27_/₈_EUE ₃1_/₂_{API FH} ₃1_/₂_{API IF} ₄1_/₂_FH ₄1_/₂_IF

Outside Diameter 41_/ 2" 43/4" 43/4" 6" 61/4" Inside Diameter 23_/ 8" 11/2" 2" 2" 21/4" Free Stroke 53_/ 16" 47/16" 51/16" 45/16" 61/2"

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. 52653 52530 52500 52498 52544 Gotco Fishing Jars

Connection Size 51_/

2 Reg 65/8 Reg 65/8 Reg 75/8 Reg

Outside Diameter 63_/

4" 73/4" 8” 9"

Inside Diameter 23_/

8" 31/16" 31/16" 33/4"

Free Stroke 61_/₂_" ₆1_/₂_" ₆1_/₂_" ₆1_/₂_"

Type Jar Int Mand Int Mand Int Mand Int Mand Gotco Part No. FJ-66 FJ-76 FJ-800 FJ-90

XRef No. 52680 52711 52711 66346 Fishing Jar Recommended Spares (1) 1 Service Kit (2) 1 Washpipe (3) 2 Piston Assemblies (4) 16 Non-Extrusion Rings

(5) 16 Seal Protector Rings (6) 4 Mandrel Body Fill Plugs (7) 4 Middle Body Fill Plugs (8) 8 Packing Sets (9) 1 Mandrel Body Setting Tool (10) 1 Piston Setting Tool

(2)

Accessory Tools

– Bumper Sub

Bumper Sub

Construction

The fishing bumper sub is 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 dur-ing fishdur-ing operations.

The fishing bumper sub is 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 ward blow. To apply a solid down-ward 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 bot-tom of the hole, the bumper sub will deliver a sharp upward blow.

Standard Components

The fishing bumper sub is 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 trans-mit torque. The barrel has a

preci-Bumper Sub

The Gotco Fishing Bumper Sub is a highly dependable accessory tool. Suitable for all fishing operations, it has proven to be espe-cially 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 over-shot or spear.

How to Order Gotco Bumper Sub

• Name and part number of assembly. • Connection, if nonstandard. • Stroke length, if nonstandard.

sion honed I.D. to assure a posi-tive seal with the piston.

Optional Components and Accessories

Stroke lengths up to 60 inch-es are available upon customer’s request.

Gotco Fishing Bumper Sub

Connection Size, in. 113_/₁₆_WFJ _{1 EUE TBG 1}1_/₄_Reg ₂3_/₈_WFJ ₂3_/₈_EUE

Outside Diam. in. 113_/

16 129/32 21/4 21/2 31/8

Inside Diam. in. 3_/

8 3/8 1/2 1/2 117/32

Stroke, in. 20 20 20 20 20

Gotco Part No. BSK-5 BSK-10 BSK-15 BSK-20 BSK-25 Gotco Fishing Bumper Sub

Connection Size, in. 23_/

8Reg 23/8IF 23/8IF 27/8Reg 23/8Eue

8 33/8 33/4 33/4 33/4

Inside Diam. in. 1 1 11_/₂ ₁1_/₄ ₁7_/₈

Stroke, in. 20 20 20 20 20

Connection Size, in. 27_/₈_IF ₂7_/₈_EUE ₂7_/₈_IF ₃1_/₂_Reg ₃1_/₂_FH

8 41/2 41/4 41/4 45/8

Inside Diam. in. 11_/

2 23/8 115/16 11/2 17/8

Stroke, in. 20 20 20 20 20

2FH 31/2IF 31/2IF 41/2Reg 41/2FH

8 43/4 43/4 51/2 53/4

Inside Diam. in. 2 11_/₂ ₂ ₂ ₂

Stroke, in. 20 20 20 20 20

Connection Size, in. 41_/₂_FH ₄1_/₂_IF ₄1_/₂_IF ₅1_/₂_Reg ₆5_/₈_Reg

Outside Diam. in. 6 61_/

8 61/4 63/4 73/4

Inside Diam. in. 2 21_/

4 21/4 23/4 31/2

Stroke, in. 20 20 20 20 20

8Reg 75/8Reg

Outside Diam. in. 8 9 Inside Diam. in. 31_/₂ ₄

Stroke, in. 20 20 Gotco Part No. BSK-102 BSK-105

(3)

Jar Impact Amplifier –

Accessory Tools

Construction

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 unre-stricted circulation at all times.

Operation

The jar impact amplifier should be located in the string immediately above the drill col-lars. 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 contin-ue 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.

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 fric-tion 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.

How to Order Gotco Jar Impact Amplifier

• Name and part number of assembly. • Size and type of connection, if nonstandard. • O.D., if nonstandard.

Jar Impact Amplifier

Gotco Jar Impact Amplifier (for Hydraulic Jars)

Connection Size 23_/8_Reg ₂3_/₈_IF ₂3_/₈_EUE ₂7_/₈_Reg ₂7_/₈_IF

8" 33/4" 33/4" 33/4" 41/4"

Inside Diameter 1" 11_/

2" 17/8" 11/4" 115/16"

Total Stroke 83_/₄ ₇7_/₈ ₇5_/₈ ₈1_/₄ ₈5_/₈

Jar Used With FJ-31 FJ-36 FJ-236 FJ-136 FJ-42 52204 52528 52497 52506 52502 Gotco Part No. AMP-31 AMP-36 AMP-236 AMP-136 AMP-42

XRef No. 55867 55747 50660 55895 55664 Gotco Jar Impact Amplifier (for Hydraulic Jars)

Connection Size 27_/₈_EUE ₃1_/₂_FH ₃1_/₂_IF ₄1_/₂_FH ₄1_/₂_IF

Outside Diameter 41_/₂_" ₄3_/₄_" ₄3_/₄_" _6" ₆1_/₄_"

Inside Diameter 23_/

8" 11/2" 2" 2" 21/4"

Total Stroke 103_/

5 87/8 101/8 85/8 13

Jar Used With FJ-44 FJ-146 FJ-46 FJ-60 FJ-62 52653 52530 52500 52498 52544 Gotco Part No. AMP-44 AMP-146 AMP-46 AMP-60 AMP-62

XRef No. 50708 50700 55812 55860 55905 Gotco Jar Impact Amplifier (for Hydraulic Jars)

Connection Size 51_/

2Reg 65/8Reg 65/8Reg 75/8Reg

Outside Diameter 63_/₄_" ₇3_/₄_" _8” _9"

Inside Diameter 23_/₈_" ₃1_/₁₆_" ₃1_/₁₆_" ₃3_/₄_"

Total Stroke 13 13 13 13

Jar Used With FJ-66 FJ-76 FJ-800 FJ-90 52680 52711 52711 66346 Gotco Part No. AMP-66 AMP-76 AMP-800 AMP-90

XRef No. 50720 55910 55910 66372 Recommended Spares (1) 1 Service Kit (2) 1 Washpipe (3) 2 Piston Assemblies (4) 16 Non-Extrusion Rings

(5) 16 Seal Protector Rings (6) 4 Mandrel Body Fill Plugs (7) 4 Middle Body Fill Plugs (8) 8 Packing Sets (9) 1 Mandrel Body Setting Tool

(4)

Accessory Tools

– Lubricated Bumper Sub Mandrel Mandrel Body Middle Body Knocker Fill Plug Washpipe Knocker Washpipe Body Seal Kit Fill Plug Lubricated Bumper Sub

Gotco Lubricated Bumper Subs

Connection Size 23_/₈_I.F. ₃1_/₂_I.F. ₄1_/₂_I.F. ₆5_/₈_Reg.

4 43/4 61/4 73/4

Inside Diameter 11_/₂ ₂ ₃1_/₈ ₃1_/₂

Total Stroke 151_/

2 151/2 18 18

Gotco Part No. LBS-36 LBS-46 LBS-62 LBS-76 XRef. No. 43470 39727 39737 39752

How to Order Gotco Lubricated Bumper Subs

• Size and type of connection if other than stan-dard.

• Outside diameter, if other than standard.

Recommended Spares:

(1) 1 Service Kit (2) 6 Seal Packing Sets (3) 4 Middle Body Fill Plugs (4) 4 Mandrel Body Fill Plugs (5) 16 Main Mandrel

Non-Extrusion Rings

(6) 16 Main Mandrel Seal Protector Rings

(7) 1 Seal Ring Setting Tool

Other sizes available upon request.

Construction

The Gotco Lubricated

Bumper Sub 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

Bumper Sub 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 achiev-ing the greatest intensity of bumping action in either direction. The primary func-tion of the Lubricated Bumper Sub is to enable the operator to release the fishing tool in the event that it becomes impossi-ble to pull the fish. It will pro-vide 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 Body, Mandrel Body and Washpipe Body. 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 extru-sion.

Lubricated

Bumper Sub

The Gotco Lubricated Fishing Bumper Sub is designed to with-stand 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.

(5)

Drilling Safety Joints –

Accessory Tools

Components

The safety joint consists of a pin section, a box section, and a friction ring. The internal connec-tion 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.

Drilling Safety Joint

The Gotco Safety Joint is manufactured to provide safe and easy release and make-up whenever disengagement becomes neces-sary. This dependable, field-tough tool is designed to transmit torque in either direction when placed in the drill, fishing, or washover string.

How to Order Gotco Safety Joints

• Name and part number of assembly. • Connection.

• O.D. and I.D. , if nonstandard.

To assemble, install the safety joint in the drill string as indicated below. Make up the service con-nection to a torque of approxi-mately 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 safe-ty 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

Gotco Drilling Safety Joints

Connection 23_/

8EUE 23/8REG 23/8IF 27/8EUE 27/8REG 27/8IF 31/2REG 31/2FH

Tool OD 31_/

16 31/8 33/8 321/32 33/4 41/8 41/4 41/2

Tool ID 13_/₄ ₁ ₁3_/₄ ₂7_/₁₆ ₁1_/₄ ₂1_/₈ ₁1_/₂ ₂1_/₁₆

Gotco Part No. DSJ-306 DSJ-312 DSJ-337 DSJ-365 DSJ-375 DSJ-412 DSJ-425 DSJ-450 Gotco Drilling Safety Joints

Connection 31_/

2FH 31/2IF 31/2IF 4 IF 41/2IF 41/2IF 41/2IF 51/2REG

Tool OD 45_/₈ ₄3_/₄ ₅ ₅3_/₄ ₆1_/₈ ₆1_/₄ ₆1_/₂ ₆3_/₄

Tool ID 27_/

16 211/16 211/16 31/4 33/4 33/4 33/4 23/4

Gotco Part No. DSJ-462 DSJ-475 DSJ-500 DSJ-575 DSJ-612 DSJ-625 DSJ-650 DSJ-675 Gotco Drilling Safety Joints

Connection 51_/₂_FH ₆5_/₈_REG ₆5_/₈_REG ₆5_/₈_REG ₆5_/₈_IF ₇5_/₈_IF ₇5_/₈_Reg ₈5_/₈_Reg

Tool OD 7 73_/

4 8 81/4 81/2 9 91/4 10

Tool ID 4 31_/

2 31/2 31/2 529/32 4 4 43/4