Fishing Tools in Downhole Operation
Zhenjiang Boral Machinery and Equipment Co., Ltd.- Certification：ISO 9001:2008, API
- Power Source：Electric
- Operation Pressure：Atmospheric Pressure
- Applicable Medium：Natural Gas, Crude Oil
- Structure：Horizontal
- Material：Cast Steel
Base Info
- Model NO.：NSJ
- API Standard：API-5CT
- Transport Package：Standard Export Case
- Trademark：NSJ
- Origin：China
- Production Capacity：10000 Pieces Per Year
Description
Specification & PropertyFishing ID mm(inch) Tensile Load KN HLM-D(S)48 73(2 7/8) 2 3/8TBG 38(1 1/2) 170 HLM-D(S)60 86(3 3/8) NC26 42~53.8(1 5/8~2 1/8) 314 HLM-D(S)73 105(4 1/8) NC31 52.6~64(2 1/16~2 1/2) 540 HLM-D(S)178 175(6 7/8) NC38 152.4~168.3(6~6 5/8) 5928
Back-off Sub
Back-off sub is also called back off spear. It can instead of taper tap to fish or back off when dealing with sticking. If the fish stuck or can't be back off sub, and then trip the drilling tool.
Specification
Reverse Circulating Junk BasketReverse circulating junk basket is a fishing tool which uses the drilling fluid partly reverse in the bottom hole, to latch small junk in the basket, It is used for fishing all types of small junk, objects in well bores, such as bit cines, cutting blades and hand tools, etc.
Specification:
ITCO Junk BasketITCO junk basket is used to catch small junks from down hole, such as ball, tong, cone, cutters, hand tools, iron junk, etc. The principle is to use the mud of inverse well flushing with large circulating rate,high pressure to shock down hole. So the junk suspensions move to impulse the basket into the cylinder. When stop the pump, the basket set back to prevent the junk out of the basket
Specification:
Junk Sub
Junk sub is a special tool for catching the heavy iron fillings or grits which are too heavy to be completely circulated out of the hole. It is important for bottom-hole cleaning, ensuring the normal work of the bit and service life.
Because of the different interspace to the wellbore between the cup OD and the rim of cup, the fluid speed dropped promptly and form a vortex, meanwhile, the carry ability of fluid also dropped. So the heavy objects in the fluid will fall into the cup and carried out in the trip process.
Cone Junk Catcher
Cone junk catcher is used to catch the small junk from down hole, such as cone, cutters, hand tools, iron junk, etc. It has advantages of simple structure, safe and reliable using. Especially in the deeper structured well. It can protect the bit when using this tool to clean the bottom hole before using the PDC bit.
Specification
Fishing Magnet
The fishing magnet is used for retrieving all types of small junk objects in the oil and geological drilling operation. It has advantages of simple structure,convenient operation, reliable property, small volume and light weight. Magnetize and attract the drilling clip, cones, bearings, slips, tong pins and other small junk objects only by the proper permanent magnet to catch the small junk object effectively and keep down hole cleaning.
Fishing magnet is used to absorb the magnetized junk objects by permanent magnet. The bottom is equipped with a protective cover that can prevent magnet damage if don't use. It can be divided into A and B structures according to the different usage.
Specification
Reverse Circulating Fishing Magnet
Reverse circulating fishing magnet is a fishing tool which uses of drilling fluids partly reverse in bottom hole to absorb the junk.
Reverse circulating fishing magnet consists of top sub, outer barrel, steel ball, cup, ballseat, magnet core and mill guide.
Reverse circulating fishing magnet make the fish suspended by,reverse flushing fluid impact bottom hole with large flowing and high pressure, and the fist is absorbed by,magnet to achieve fishing.
Specification
Three Ball Fisher
Three ball fisher is a professional fishing tool to catch sucker-rod coupling or its upset shoulder.It consists of barrel, steel ball, spring and guide shoe etc. After the sucker rod with coupling or shoulder embedding guide shoe, the coupling or shoulder push the steel ball then increase in circle of three ball. After coupling or shoulder passed three balls, the balls fall back because of gravity, then lift drill string, the coupling or shoulder will be block by those three balls due to bigger size, which will clamping sucker-rod from radial direction.
Specification:
Taper Tap
Taper tap is a fishing tool which making thread and engaging fish internally,such as drill pipe and tubing.It has high success rate for fishing tubular fishes with coupling. It works with right and left hand drill pipe,and other tools.It can be used in different fishing process.The taper tap is made of high quality alloy steel and processed by special heat treatment. In order to make threads easily, it is made with chip groove .
Specification
Die Collar
Die Collar is an external fishing tool which is engaged on the outside wall of tubing objects, such as oil tubing and drill pipe.It is used to fish the cylinder junks which have no inner bore or the inner bore is blank off. Die collar can work with right and left hand thread drill pipe and other tools. It can be used in different fishing process.The fishing thread is 5 threads per inch, taper 1:6. The hard and shap edge of fishing threads can make threads easily.When the fish enters in die collar, it made the thread on outside of fish by rotating the drilling tools.
Specification
Internal Hook
The internal hook is used for fishing all kinds of ropes and other fishes from the casing or tubing, such as wire lines, logging steel pieces, paraffin cutters, etc. when internal hook inserts into the ropes or other fishes, then pick up the drilling tools and the hook tooth will carry the fishes to the ground.
Specification:
External Hook
The external hook is used for fishing all kinds of ropes, lifting bail, hollow short cylinders, short rope slings, from the casing or tubing. When the external hook can be inserted into the ropes or other fishes,then pick up the drilling tool and the hook tooth will hook the fishes and take them to the ground.
Specification:
Junk Mill
Milling tool is a kind of tool for milling the fishes. Such as bits, cone, cutter gauge, slip elements, swivel wash pipes, subs, parts of deep-well pump, etc.
The flat bottom and concave junk mill milling the fishes with the effect of drilling pressure by the YD alloy and anti-abrasive material on its bottom surface. The junk was carried out of well by the drilling fluid.
Specification
Flat bottom junk mill specification
Concave junk mill specification
Pilot Mill
The pilot mill is used to mill the fishes which have inner bore instability and shake in the well, such as drill pipe,drill collar,tubing, etc.
The pilot mill is made up of mill shoe body and pilot cone, as the following picture.The upper part of the mill shoe body is inner thread, the lower part is cylinder which diameter is bigger. Welding YD alloy and anti-abrasive material on the back plane of pilot cone and mill shoe body. The pilot cone has the effect of leading and fixing the top of the fish. And there are 2-4 water crossing grooves on the back plane of the mill shoe body to make sure it can circulate unblocked.
The pilot mill shoes locate the fish by the cone which is entered into the fish, and then rotate with the drilling tool, the mill shoes welded with YD alloy grind the fish.
Taper Mill
The taper mill is mainly used for restoring the deformational fish's top or restoring the crimping and burrs during drilling and clean the mineral crystallization and other hard stuff on the well to resume bore size. The taper mill use its alloy to mill the crystallization and other impurities on the inner wall of the casing. The cylindrical part has the effect of centralizing, the junk is carried to the ground by flushing fluid.
Impression Block
Impression block is used for judging the depth of fish and shape of fish's top. In order to make workers know the shape of fishing top and location, and choose suitable fishing tools to fish successfully.
Impression block is made of joint steel body and Pub rooted in bottom of joint steel body,there is a circle hole in center of impression block to circle drill fluid. there is ring groove on the casting part ofjoint so that fixing impression block, joint connects with pipe string with its upper connection thread.
Specification:
| How to order: Sizes and connections; Please specify special requirements. |
Back-off Sub
Back-off sub is also called back off spear. It can instead of taper tap to fish or back off when dealing with sticking. If the fish stuck or can't be back off sub, and then trip the drilling tool.
Specification
| Model | OD mm(inch) | Conn. | ID mm(inch) | OAL mm(inch) |
| ZDK105 | 105(4 1/8) | NC31B LHxNC31P | 15(19/32) | 580(22 13/16) |
| ZDK121 | 121(4 3/4) | NC38B LHxNC38P | 22(57/64) | 628(24 3/4) |
| ZDK165 | 165(6 1/2) | NC50B LHxNC50P | 28(1 1/8) | 690(27 3/16) |
| ZDK178 | 178(7) | 6 5/8REGB LHx6 5/8REP | 28(1 1/8) | 700(27 9/16) |
| ZDK203 | 203(8) | 6 5/8REGB LHx6 5/8REP | 35(1 3/8) | 723(28 1/2) |
Reverse Circulating Junk BasketReverse circulating junk basket is a fishing tool which uses the drilling fluid partly reverse in the bottom hole, to latch small junk in the basket, It is used for fishing all types of small junk, objects in well bores, such as bit cines, cutting blades and hand tools, etc.
Specification:
| Model | Body OD mm(inch) | Mill Shoe OD mm(inch) | Max. Fish Size mm(inch) | Steel Ball OD mm(inch) | Hole Size mm | Conn. |
| LL114 | 114(4 1/2) | 120(4 3/4) | 80(3 1/8) | 32(1 1/4) | 117.5~127 | 2 7/8REG |
| LL121 | 121(4 3/4) | 127(5) | 80(3 1/8) | 32(1 1/4) | 130~139.7 | 3 1/2REG |
| LL165 | 165(6 1/2) | 171(6 3/4) | 124(4 7/8) | 40(1 9/16) | 212.7~241.3 | 4 1/2REG |
| LL286 | 286(11 1/4) | 291(11 7/16) | 220(8 11/16) | 48(1 57/64) | 298.5~311.2 | 6 5/8REG |
| LL381 | 381(15) | 400(15 3/4) | 315(12 3/8) | 60(2 23/64) | 406.4-444.5 | 7 5/8REG |
Specification:
| Model | Max. OD mm(inch) | Conn. | Hole Size mm(inch) | OAL mm(inch) |
| LL-P146 | 151(5 15/16) | NC38 | 155.6 - 165.1(6 1/8 - 6 1/2) | 1376(54 11/64) |
| LL-P200 | 205(8 5/64) | NC50 | 212.7 - 241.3(8 3/8 ~ 9 1/2) | 1766(69 17/32) |
| LL-P280 | 286(11 1/4) | 6 5/8REG | 298.5 - 311.2(11 3/4 - 12 1/4) | 1846(72 43/64) |
| LL-P381 | 381(15) | 7 5/8REG | 406.4 - 444.5(16 - 17 1/2) | 1780(70 5/64) |
Junk Sub
Junk sub is a special tool for catching the heavy iron fillings or grits which are too heavy to be completely circulated out of the hole. It is important for bottom-hole cleaning, ensuring the normal work of the bit and service life.
Because of the different interspace to the wellbore between the cup OD and the rim of cup, the fluid speed dropped promptly and form a vortex, meanwhile, the carry ability of fluid also dropped. So the heavy objects in the fluid will fall into the cup and carried out in the trip process.
| Model | Hole Size (mm) | Cup OD mm(inch) | Sub OD mm(inch) | ID mm(inch) | Conn. |
| SLB94 | 108 - 117.5 | 94(3 11/16) | 79.3(3 1/8) | 20(25/32) | 2 3/8REG |
| SLB102 | 117.5 - 124 | 102(4) | 92(3 5/8) | 32(1 1/4) | 2 7/8REG |
| SLB127 | 152.4 - 162 | 127(5) | 105(41/8) | 38(1 1/2) | 3 1/2REG |
| SLB168 | 165 - 190.5 | 168(6 5/8) | 146(5 3/4) | 57(2 1/4) | 4 1/2REG |
| SLB203 | 235 - 279.5 | 203(8) | 168(6 5/8) | 57(2 1/4) | 4 1/2REG |
| SLB229 | 254 - 305 | 229(9) | 197(7 3/4) | 71(2 13/16) | 6 5/8REG |
| SLB330 | 374.7 - 444.5 | 330(12 1/2) | 241(91/2) | 76(3) | 7 5/8REG |
Cone junk catcher is used to catch the small junk from down hole, such as cone, cutters, hand tools, iron junk, etc. It has advantages of simple structure, safe and reliable using. Especially in the deeper structured well. It can protect the bit when using this tool to clean the bottom hole before using the PDC bit.
Specification
| Model | OD mm(inch) | Specification | Conn. |
| YL98 | 98(3 7/8) | Suitable for Φ127(5")casing and Φ117(4 5/8")well hole,max. catching Φ45, finger type claw shrinking pressure 17.5Mpa,bursting pressure 21.8Mpa. | 2 7/8REG |
| YL146 | 146(5 3/4) | Suitable for Φ178(7")casing and Φ152.4(6")well hole,max. catching Φ90, finger type claw shrinking pressure17.5Mpa,bursting pressure 21.8Mpa. | NC38 |
| YL200 | 200(7 7/8) | Suitable for Φ244(9 5/8")casing and Φ216(8 1/2")well hole,finger type claw shrinking pressure 17.5Mpa, bursting pressure 21.8Mpa. | NC50 |
| How to order: Sizes and connections; Please specify special requirements. |
Fishing Magnet
The fishing magnet is used for retrieving all types of small junk objects in the oil and geological drilling operation. It has advantages of simple structure,convenient operation, reliable property, small volume and light weight. Magnetize and attract the drilling clip, cones, bearings, slips, tong pins and other small junk objects only by the proper permanent magnet to catch the small junk object effectively and keep down hole cleaning.
Fishing magnet is used to absorb the magnetized junk objects by permanent magnet. The bottom is equipped with a protective cover that can prevent magnet damage if don't use. It can be divided into A and B structures according to the different usage.
Specification
| Model | OD mm(inch) | Conn. | Attraction(Kg/cm2) | Hole Size (mm) |
| CL381 | 381(15) | 7 5/8REG | 7 | 406 444.5(16 17 1/2) |
| CL311 | 311(12 1/4) | 6 5/8REG | 7.2 | 346-381(13 5/8-15) |
| CL254 | 254(10) | 6 5/8REG | 7.2 | 267-312(10 1/2-12 1/4) |
| CL203 | 203(8) | NC50 | 7.7 | 215-247(8 1/2-9 3/4) |
| CL178 | 178(7) | NC50 | 8.5 | 193-215(7 5/8-8 1/2) |
| CL146 | 146(5 3/4) | 3 1/2REG | 8.0 | 160-185(6 5/16-7 5/16) |
| CL102 | 102(4) | 3 1/2REG | 7.8 | 114-135(4 1/2-5 5/16) |
| CL83 | 83(3 1/4) | 2 3/8REG | 7.7 | 95-114(3 3/4-41/2) |
Reverse Circulating Fishing Magnet
Reverse circulating fishing magnet is a fishing tool which uses of drilling fluids partly reverse in bottom hole to absorb the junk.
Reverse circulating fishing magnet consists of top sub, outer barrel, steel ball, cup, ballseat, magnet core and mill guide.
Reverse circulating fishing magnet make the fish suspended by,reverse flushing fluid impact bottom hole with large flowing and high pressure, and the fist is absorbed by,magnet to achieve fishing.
Specification
| Model | OD mm(inch) | Conn. | Attraction(Kg/cm2) | Hole Size (mm) |
| CL-FP86 | 86(3 3/8) | 2 3/8REG | 7.7 | 95-110(3 3/4-4 5/16) |
| CL-FP146 | 146(5 3/4) | NC38 | 8.5 | 95-110(3 3/4-4 5/16) |
| CL-FP200 | 200(7 7/8) | NC50 | 7.8 | 216-241(8 1/2-91/2) |
| CL-FP381 | 381(15) | 7 5/8REG | 6.9 | 406-444(16-17 1/2) |
Three Ball Fisher
Three ball fisher is a professional fishing tool to catch sucker-rod coupling or its upset shoulder.It consists of barrel, steel ball, spring and guide shoe etc. After the sucker rod with coupling or shoulder embedding guide shoe, the coupling or shoulder push the steel ball then increase in circle of three ball. After coupling or shoulder passed three balls, the balls fall back because of gravity, then lift drill string, the coupling or shoulder will be block by those three balls due to bigger size, which will clamping sucker-rod from radial direction.
Specification:
| Model | OD mm(mm) | Conn. | Fish Size (inch) | Hole Size (inch) |
| LSQ95-1 | 95(3 3/4) | 2 3/8TBG | 5/8,3/4 | 41/2 |
| LSQ114 | 114(41/2) | NC31 | 2 3/8 | 5 1/2 |
| LSQ114 | 143(5 5/8) | NC38 | 2 7/8 | 61/2 |
Taper Tap
Taper tap is a fishing tool which making thread and engaging fish internally,such as drill pipe and tubing.It has high success rate for fishing tubular fishes with coupling. It works with right and left hand drill pipe,and other tools.It can be used in different fishing process.The taper tap is made of high quality alloy steel and processed by special heat treatment. In order to make threads easily, it is made with chip groove .
Specification
| Model | Sub OD mm(inch) | Conn. | Wicker Range mm(inch) |
| GZ-NC26 | 89(3 1/2) | NC26 | 33.3 - 55(1 5/16 - 2 3/16) |
| GZ-NC31 | 105(4 1/8) | NC31 | 79 - 105(3 1/8 - 4 1/8) |
| GZ-NC38 | 121(4 3/4) | NC38 | 82 - 121(3 1/4 - 4 3/4) |
| GZ-NC50 | 165(6 1/2) | NC50 | 127 - 165(5 ~ 6 1/2) |
| GZ-6-5/8REG | 203(8) | 6 5/8REG | 165 - 203(6 1/2 - 8) |
Die Collar
Die Collar is an external fishing tool which is engaged on the outside wall of tubing objects, such as oil tubing and drill pipe.It is used to fish the cylinder junks which have no inner bore or the inner bore is blank off. Die collar can work with right and left hand thread drill pipe and other tools. It can be used in different fishing process.The fishing thread is 5 threads per inch, taper 1:6. The hard and shap edge of fishing threads can make threads easily.When the fish enters in die collar, it made the thread on outside of fish by rotating the drilling tools.
Specification
| Model | Sub OD mm(inch) | Conn. | Wicker Range mm(inch) |
| MZ-NC26 | 89(3 1/2) | NC26 | 31 - 57(1 1/4 ~ 8 1/4) |
| MZ-NC31 | 105(4 1/8) | NC31 | 89 - 93(3 1/2 ~ 3 11/16) |
| MZ-NC38 | 121(4 3/4) | NC38 | 90 - 110(3 9/16 - 4 5/16) |
| MZ-NC50 | 165(6 1/2) | NC50 | 120 - 135(4 3/4 - 5 5/16) |
Internal Hook
The internal hook is used for fishing all kinds of ropes and other fishes from the casing or tubing, such as wire lines, logging steel pieces, paraffin cutters, etc. when internal hook inserts into the ropes or other fishes, then pick up the drilling tools and the hook tooth will carry the fishes to the ground.
Specification:
| Model | Max.OD mm(inch) | Conn. | Casing/Tubing Size |
| NG73 | 73(2 7/8) | 2 3/8UP TBG | 31/2 Tubing |
| NG95 | 95(3 3/4) | NC26 | 41/2 Tubing |
| NG114 | 114(41/2) | NC31 | 5 1/2 Casing |
| NG150 | 150(5 7/8) | NC38 | 7 Casing |
| NG190 | 190(7 1/2) | NC38 | 9 5/8 Casing |
External Hook
The external hook is used for fishing all kinds of ropes, lifting bail, hollow short cylinders, short rope slings, from the casing or tubing. When the external hook can be inserted into the ropes or other fishes,then pick up the drilling tool and the hook tooth will hook the fishes and take them to the ground.
Specification:
| Model | Max. OD mm(inch) | Conn. | Casing/Tubing Size |
| WG73 | 73(2 7/8) | 2 3/8UP TBG | 31/2 Tubing |
| WG95 | 95(3 3/4) | NC26 | 41/2 Tubing |
| WG114 | 114(4 1/2) | NC31 | 5 1/2 Casing |
| WG150 | 150(5 7/8) | NC38 | 7 Casing |
| WG190 | 190(7 1/2) | NC38 | 9 5/8 Casing |
Milling tool is a kind of tool for milling the fishes. Such as bits, cone, cutter gauge, slip elements, swivel wash pipes, subs, parts of deep-well pump, etc.
The flat bottom and concave junk mill milling the fishes with the effect of drilling pressure by the YD alloy and anti-abrasive material on its bottom surface. The junk was carried out of well by the drilling fluid.
Specification
Flat bottom junk mill specification
| Model | OD mm(inch) | Conn. | OAL mm(inch) |
| PMX105 | 105(4 1/8) | NC23 | 380(15) |
| PMX114 | 114(4 1/2) | NC26 | 390(15 3/8) |
| PMX140 | 140(5 1/2) | 3 1/2REG | 380(15) |
| PMX195 | 195(7 11/16) | 4 1/2REG | 400(15 3/4) |
| PMX215 | 215(8 1/2) | 4 1/2REG | 400(15 3/4) |
| PMX311 | 311(12 1/4) | 6 5/8REG | 440(17 5/16) |
| PMX406 | 406(16) | 7 5/8REG | 500(19 11/16) |
| Model | OD mm(inch) | OAL mm(inch) | Conn. |
| AMX260 | 260(10 1/4) | 400(15 3/4) | 6 5/8REG |
| WG311 | 311(12 1/4) | 440(17 21/64) | 6 5/8REG |
| WG216 | 215.9(8 1/2) | 400(15 3/4) | NC50 |
| AMX190 | 190(7 1/2) | 400(15 3/4) | 4 1/2REG |
Pilot Mill
The pilot mill is used to mill the fishes which have inner bore instability and shake in the well, such as drill pipe,drill collar,tubing, etc.
The pilot mill is made up of mill shoe body and pilot cone, as the following picture.The upper part of the mill shoe body is inner thread, the lower part is cylinder which diameter is bigger. Welding YD alloy and anti-abrasive material on the back plane of pilot cone and mill shoe body. The pilot cone has the effect of leading and fixing the top of the fish. And there are 2-4 water crossing grooves on the back plane of the mill shoe body to make sure it can circulate unblocked.
| Specification |
|
Taper Mill
The taper mill is mainly used for restoring the deformational fish's top or restoring the crimping and burrs during drilling and clean the mineral crystallization and other hard stuff on the well to resume bore size. The taper mill use its alloy to mill the crystallization and other impurities on the inner wall of the casing. The cylindrical part has the effect of centralizing, the junk is carried to the ground by flushing fluid.
| Specification |
|
Impression Block
Impression block is used for judging the depth of fish and shape of fish's top. In order to make workers know the shape of fishing top and location, and choose suitable fishing tools to fish successfully.
Impression block is made of joint steel body and Pub rooted in bottom of joint steel body,there is a circle hole in center of impression block to circle drill fluid. there is ring groove on the casting part ofjoint so that fixing impression block, joint connects with pipe string with its upper connection thread.
Specification:
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| How to order: Sizes & Connections; Please specify special requirements. |