CN104314503B - A kind of special fishing socket of coiled tubing fish - Google Patents
A kind of special fishing socket of coiled tubing fish Download PDFInfo
- Publication number
- CN104314503B CN104314503B CN201410618914.4A CN201410618914A CN104314503B CN 104314503 B CN104314503 B CN 104314503B CN 201410618914 A CN201410618914 A CN 201410618914A CN 104314503 B CN104314503 B CN 104314503B
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- slips
- sleeve
- outer sleeve
- mandrel
- tapered sleeve
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- 241000251468 Actinopterygii Species 0.000 title claims abstract description 31
- 241000239290 Araneae Species 0.000 claims description 7
- 230000002441 reversible effect Effects 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 3
- 241001540526 Leptonotus elevatus Species 0.000 abstract description 2
- 238000005553 drilling Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 210000003205 muscle Anatomy 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B31/00—Fishing for or freeing objects in boreholes or wells
- E21B31/12—Grappling tools, e.g. tongs or grabs
- E21B31/18—Grappling tools, e.g. tongs or grabs gripping externally, e.g. overshot
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Marine Sciences & Fisheries (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The present invention relates to a kind of special fishing socket of coiled tubing fish, belong to drilling well fishing tool technical field.This special fishing socket, including mandrel, top connection, outer sleeve joint, outer sleeve, slips and slips tapered sleeve.One end of mandrel is provided with top connection, and mandrel is set with outer sleeve joint and outer sleeve, and the ends screw of outer sleeve is provided with guide shoe；Mandrel one end in outer sleeve is provided with slips, and slips side is sleeved on slips equipped with slips tapered sleeve, one end of slips tapered sleeve.This special fishing socket is novel in design, simple in construction；By slips and the cooperation of slips tapered sleeve in work process, can realize salvaging the purpose of continuous oil pipe fish；In solving existing routine, card fishing tool operation is restricted, and because the particularity of coiled tubing structure is restricted in construction, the problem causing salvaging poor effect.It is particularly well-suited to Oil/gas Well coiled tubing fish and salvages use.
Description
Technical field
The present invention relates to a kind of special fishing socket of coiled tubing fish, belong to drilling well fishing tool technical field.
Background technology
Along with deepening continuously of oil and gas exploitation technology, coiled tubing technology popularization and application during oil and gas exploitation are more and more extensive, and coiled tubing is also increasing year by year because of fracture that various situations the cause well accident that falls.Fishing tool both domestic and external has a lot, has for the multi-functional slip socket salvaging overweight fish at deep-well, ultradeep well, has and produces radial force and make overcover scatter to surrounding to enter smoothly fish intracavity hole and salvage the spirally-guided reversible of fish and drag for lance.Owing to the wall thickness of coiled tubing is relatively thin, male and female cone thread making is salvaged, though energy thread making success, but be difficult to propose fish.Furthermore, the welding muscle existed due to the inner radius of coiled tubing, make the interior card fishing tool operation of routine be restricted.Further, since fall, the coiled tubing fish head shape of well mostly is irregularly shaped.Existing most tubing string is salvaged means (including instrument and technique) and is restricted in construction because of the particularity of coiled tubing structure, causes salvaging poor effect.
Summary of the invention
It is an object of the invention to: provide a kind of after coiled tubing fracture falls well, coiled tubing fish can be carried out fast salvaging, and salvage the effective special fishing socket of coiled tubing fish.
The technical scheme is that
A kind of special fishing socket of coiled tubing fish, including mandrel, top connection, outer sleeve joint, outer sleeve, slips and slips tapered sleeve, it is characterized in that: the threaded one end of mandrel is provided with top connection, the other end termination of mandrel is provided with positive stop lug boss, being set with outer sleeve joint and outer sleeve on mandrel, the ends screw of outer sleeve is provided with guide shoe；Mandrel one end in outer sleeve is provided with slips by compression spring and thrust bearing, slips tapered sleeve is installed in the outer sleeve of slips side, one end of slips tapered sleeve is sleeved on slips, on described slips, guiding fork is installed, slips groove it is provided with on slips, being provided with tapered sleeve groove on slips tapered sleeve, guiding fork contacts connection with tapered sleeve groove with slips and slips tapered sleeve by slips groove respectively.
It is provided with central through hole on described mandrel.
Described guiding fork is made up of mounting ring and prerotation vane, and on the end face of mounting ring one end, symmetry shape is provided with prerotation vane, and the cross section of prerotation vane is arc-shaped.
Described slips cylindrically, is made up of slip spider, slips body and the card hanging edge of a dripping tile, and one end of slip spider is fixed with slips body, and the termination of slips body is provided with the slips groove being provided with through shape on the card hanging edge of a dripping tile, slips body and the card hanging edge of a dripping tile；The inner surface of the card hanging edge of a dripping tile is provided with reverse hook teeth.
Described slips tapered sleeve is made up of mounting ring, slips cone sheet and slips sleeve, one end symmetry shape of mounting ring is provided with slips cone sheet, and the other end of mounting ring is provided with slips sleeve, and the inner surface of slips cone sheet is arc, the centre bore of slips sleeve is taper, and slips sleeve is provided with tapered sleeve groove；It is provided with circumferential groove on the slips sleeve of tapered sleeve groove side.
Be provided with stop screw on the inwall of described outer sleeve, stop screw by with circumferential groove be slidably matched and slips tapered sleeve is slidably connected.
Described outer sleeve joint termination contacts connection with the positive stop lug boss of mandrel.
Between described outer sleeve and outer sleeve joint threaded.
It is an advantage of the current invention that:
This special fishing socket of coiled tubing fish is novel in design, simple in construction；By slips and the cooperation of slips tapered sleeve in work process, coiled tubing fish is formed extruding, thus caught, being achieved in salvaging the purpose of continuous oil pipe fish, during salvaging, slips is rotatable under the effect of thrust bearing, coiled tubing is made to enter to smoothly in slips, in solving existing routine, card fishing tool operation is restricted, and because the particularity of coiled tubing structure is restricted in construction, the problem causing salvaging poor effect.It is particularly well-suited to Oil/gas Well coiled tubing fish and salvages use.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of the present invention；
Fig. 2 is the perspective view of the slips of the present invention；
Fig. 3 is the perspective view of the slips tapered sleeve of the present invention；
Fig. 4 is the perspective view of the guiding fork of the present invention；
Fig. 5 is the slips of the present invention, slips tapered sleeve, guiding fork section view attachment structure schematic diagram；
Fig. 6 is the slips of the present invention, slips tapered sleeve, guiding fork solid attachment structure schematic diagram.
In figure: 1, mandrel, 2, top connection, 3, outer sleeve joint, 4, outer sleeve, 5, central through hole, 6, positive stop lug boss, 7, guide shoe, 8, compression spring, 9, thrust bearing, 10, slip spider, 11, slips body, 12, the card hanging edge of a dripping tile, 13, slips groove, 14, reverse hook teeth, 15, mounting ring, 16, slips cone sheet, 17, slips sleeve, 18, tapered sleeve groove, 19, circumferential groove, 20, mounting ring, 21, prerotation vane, 22, slips tapered sleeve, 23, guiding fork, 24, stop screw.
Detailed description of the invention
This special fishing socket of coiled tubing fish includes mandrel 1, top connection 2, outer sleeve joint 3, outer sleeve 4, slips and slips tapered sleeve 22.Mandrel 1 threaded one end being provided with central through hole 5 is provided with top connection 2, and the other end termination of mandrel 1 is provided with positive stop lug boss 6, and mandrel 1 is set with outer sleeve joint 3 and outer sleeve 4, threaded between outer sleeve 4 and outer sleeve joint 3；The termination of outer sleeve joint 3 contacts connection with the positive stop lug boss 6 of mandrel 1.
The ends screw of outer sleeve 4 is provided with guide shoe 7；Mandrel 1 one end in outer sleeve 4 is provided with slips by compression spring 8 and thrust bearing 9.Slips cylindrically, is made up of slip spider 10, slips body 11 and the card hanging edge of a dripping tile 12, and one end of slip spider 10 is fixed with slips body 11, and the termination of slips body 11 is provided with the slips groove 13 being provided with through shape on the card hanging edge of a dripping tile 12, slips body 11 and the card hanging edge of a dripping tile 12；The inner surface of the card hanging edge of a dripping tile 12 is provided with reverse hook teeth 14.
In the outer sleeve 4 of slips side, slips tapered sleeve 22 is installed.Slips tapered sleeve 22 is made up of mounting ring 15, slips cone sheet 16 and slips sleeve 17.One end symmetry shape of mounting ring 15 is provided with slips cone sheet 16, and the other end of mounting ring 15 is provided with slips sleeve 17, and the inner surface of slips cone sheet 16 is arc, and the centre bore of slips sleeve 17 is taper, and slips sleeve 17 is provided with tapered sleeve groove 18；It is provided with circumferential groove 19 on the slips sleeve 17 of tapered sleeve groove 18 side.The slips sleeve 17 of slips tapered sleeve 22 is sleeved on the card hanging edge of a dripping tile 12.
Guiding fork 23 is installed on slips.Guiding fork 23 is made up of mounting ring 20 and prerotation vane 21, and on the end face of mounting ring 20 one end, symmetry shape is provided with prerotation vane 21, and the cross section of prerotation vane 21 is arc-shaped.Guiding fork 23 from prerotation vane 21 respectively by with the coordinating of slips groove 13 and tapered sleeve groove 18, contact connection with slips and slips tapered sleeve 22.Thereby guarantee that slips and slips tapered sleeve 22 are slotted the concordance in orientation.
Be provided with stop screw 24 on the inwall of outer sleeve 4, stop screw 24 by with circumferential groove 19 be slidably matched and slips tapered sleeve 22 is slidably connected, thus limit slips tapered sleeve 22 moving axially at outer sleeve 4, and make slips tapered sleeve 22 to circumferentially rotate.
During the work of this coiled tubing fish special fishing socket, after entering to guide shoe 7 endoporus wait the flat mouth fish head salvaged, slips at slips tapered sleeve 22 is bored in the card hanging edge of a dripping tile 12 entering to slips under sheet 16 guides, and insert to the depth of slips body 11, in this course, owing to being provided with circumferential groove 19 on tapered sleeve groove 18, and circumferential groove 19 is slidably connected with the stop screw 24 on outer sleeve 4 inwall, and slips tapered sleeve 22 can circumferentially rotate；And owing to the prerotation vane 21 of guiding fork 23 is arranged in the tapered sleeve groove 18 of slips tapered sleeve 22 and slips and slips groove 13, on slips equipped with thrust bearing 9, therefore during fish head enters, slips tapered sleeve 22, guiding fork 23 and slips energy concordance are freely rotatable, to adapt to the flat mouth orientation of flat mouth fish head, to guarantee that slips is effectively grabbed the coiled tubing fish head at card position and do not had big deformation.And guiding fork 23 can drive slips can slide axially at the tapered sleeve groove 18 of slips tapered sleeve 22 by prerotation vane 21 and not deviate from.
Coiled tubing fish enters after putting in place, is pressed in outer sleeve 4 by top connection 2, and under the effect of the pressure, slips entirety moves to guide shoe 7 side.In this course, owing to the card hanging edge of a dripping tile 12 of slips is tapered, the inner surface of the card hanging edge of a dripping tile 12 is provided with reverse hook teeth 14, and the centre bore of slips sleeve 17 is all the taper corresponding with the card hanging edge of a dripping tile 12, and slips sleeve 17 is sleeved on the card hanging edge of a dripping tile 12.Therefore overall during guide shoe 7 side moves at slips, slips sleeve 17 forms extruding to the card hanging edge of a dripping tile 12, the card hanging edge of a dripping tile 12 is forced to produce deformation, simultaneously under the effect of reverse hook teeth 14, coiled tubing is blocked by fish firmly by slips, can propose with this fishing socket, thus realize the salvaging of coiled tubing fish.
This special fishing socket of coiled tubing fish is novel in design, simple in construction；In solving existing routine, card fishing tool operation is restricted, and because the particularity of coiled tubing structure is restricted in construction, the problem causing salvaging poor effect.It is particularly well-suited to Oil/gas Well coiled tubing fish and salvages use.
Claims (4)
1. the special fishing socket of coiled tubing fish, including mandrel (1), top connection (2), outer sleeve joint (3), outer sleeve (4), slips and slips tapered sleeve (22), it is characterized in that: the threaded one end of mandrel (1) is provided with top connection (2), the other end termination of mandrel (1) is provided with positive stop lug boss (6), being set with outer sleeve joint (3) and outer sleeve (4) on mandrel (1), the ends screw of outer sleeve (4) is provided with guide shoe (7)；Mandrel (1) one end in outer sleeve (4) is provided with slips by compression spring (8) and thrust bearing (9), in the outer sleeve (4) of slips side, slips tapered sleeve (22) is installed, one end of slips tapered sleeve (22) is sleeved on slips, guiding fork (23) is installed on described slips, slips groove (13) it is provided with on slips, being provided with tapered sleeve groove (18) on slips tapered sleeve (22), guiding fork (23) contacts connection with tapered sleeve groove (18) with slips and slips tapered sleeve (22) by slips groove (13) respectively；
Described guiding fork is made up of mounting ring (20) and prerotation vane (21), and on the end face of mounting ring (20) one end, symmetry shape is provided with prerotation vane (21), and the cross section of prerotation vane (21) is arc-shaped；
Described slips is cylindrically, it is made up of slip spider (10), slips body (11) and the card hanging edge of a dripping tile (12), one end of slip spider (10) is fixed with slips body (11), the termination of slips body (11) is provided with the slips groove (13) being provided with through shape on the card hanging edge of a dripping tile (12), slips body (11) and the card hanging edge of a dripping tile (12)；The inner surface of the card hanging edge of a dripping tile (12) is provided with reverse hook teeth (14)；
Described slips tapered sleeve (22) is made up of mounting ring (15), slips cone sheet (16) and slips sleeve (17), one end symmetry shape of mounting ring (15) is provided with slips cone sheet (16), the other end of mounting ring (15) is provided with slips sleeve (17), the inner surface of slips cone sheet (16) is arc, the centre bore of slips sleeve (17) is taper, and slips sleeve (17) is provided with tapered sleeve groove (18)；It is provided with circumferential groove (19) on the slips sleeve (17) of tapered sleeve groove (18) side；
Be provided with stop screw (24) on the inwall of described outer sleeve (4), stop screw (24) by with circumferential groove (19) be slidably matched and slips tapered sleeve (22) is slidably connected.
A kind of special fishing socket of coiled tubing fish the most according to claim 1, it is characterised in that: it is provided with central through hole (5) on described mandrel (1).
A kind of special fishing socket of coiled tubing fish the most according to claim 1, it is characterised in that: described outer sleeve joint (3) termination contacts connection with the positive stop lug boss (6) of mandrel (1).
A kind of special fishing socket of coiled tubing fish the most according to claim 1, it is characterised in that: threaded between described outer sleeve (4) and outer sleeve joint (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410618914.4A CN104314503B (en) | 2014-11-06 | 2014-11-06 | A kind of special fishing socket of coiled tubing fish |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410618914.4A CN104314503B (en) | 2014-11-06 | 2014-11-06 | A kind of special fishing socket of coiled tubing fish |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104314503A CN104314503A (en) | 2015-01-28 |
| CN104314503B true CN104314503B (en) | 2016-11-16 |
Family
ID=52369799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410618914.4A Active CN104314503B (en) | 2014-11-06 | 2014-11-06 | A kind of special fishing socket of coiled tubing fish |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104314503B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420062A (en) * | 2017-08-14 | 2017-12-01 | 中国石油大学(华东) | A kind of bumper jar for continuous pipe unfreezing |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105401902A (en) * | 2015-12-22 | 2016-03-16 | 东营和辉石油技术有限责任公司 | Cable salvage tool used in oil and gas well |
| CN106930714A (en) * | 2015-12-29 | 2017-07-07 | 中石化石油工程技术服务有限公司 | A kind of coiled tubing underground releasing tool |
| CN109441389B (en) * | 2019-01-03 | 2024-02-27 | 西安石油大学 | Double-slip retractable type continuous oil pipe fish fishing device |
| CN110952946A (en) * | 2019-11-27 | 2020-04-03 | 淮安市井神钻采机具有限公司 | Fishing barrel capable of catching fish strongly |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2061836C1 (en) * | 1992-10-08 | 1996-06-10 | Иван Павлович Пустовойтенко | External pipe grab |
| CA2167851A1 (en) * | 1996-01-25 | 1997-07-26 | Robert Lindsay Scott | Dual self-operating fishing tool |
| CN2646371Y (en) * | 2003-10-14 | 2004-10-06 | 大庆油田有限责任公司 | Novel packaged milling tool for drillable bridge plug |
| CN201843556U (en) * | 2010-10-20 | 2011-05-25 | 大庆油田有限责任公司 | Hydraulic withdrawable overshot |
| CN203097792U (en) * | 2012-11-30 | 2013-07-31 | 中国石油集团川庆钻探工程有限公司 | Underground rotary fishing device for coiled tubing |
| CN204175225U (en) * | 2014-11-06 | 2015-02-25 | 长江大学 | The special fishing socket of a kind of coiled tubing fish |
-
2014
- 2014-11-06 CN CN201410618914.4A patent/CN104314503B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2061836C1 (en) * | 1992-10-08 | 1996-06-10 | Иван Павлович Пустовойтенко | External pipe grab |
| CA2167851A1 (en) * | 1996-01-25 | 1997-07-26 | Robert Lindsay Scott | Dual self-operating fishing tool |
| CN2646371Y (en) * | 2003-10-14 | 2004-10-06 | 大庆油田有限责任公司 | Novel packaged milling tool for drillable bridge plug |
| CN201843556U (en) * | 2010-10-20 | 2011-05-25 | 大庆油田有限责任公司 | Hydraulic withdrawable overshot |
| CN203097792U (en) * | 2012-11-30 | 2013-07-31 | 中国石油集团川庆钻探工程有限公司 | Underground rotary fishing device for coiled tubing |
| CN204175225U (en) * | 2014-11-06 | 2015-02-25 | 长江大学 | The special fishing socket of a kind of coiled tubing fish |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420062A (en) * | 2017-08-14 | 2017-12-01 | 中国石油大学(华东) | A kind of bumper jar for continuous pipe unfreezing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104314503A (en) | 2015-01-28 |
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