CN204175225U - The special fishing socket of a kind of coiled tubing fish - Google Patents
The special fishing socket of a kind of coiled tubing fish Download PDFInfo
- Publication number
- CN204175225U CN204175225U CN201420658516.0U CN201420658516U CN204175225U CN 204175225 U CN204175225 U CN 204175225U CN 201420658516 U CN201420658516 U CN 201420658516U CN 204175225 U CN204175225 U CN 204175225U
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- CN
- China
- Prior art keywords
- slips
- sleeve
- outer sleeve
- coiled tubing
- mandrel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
The utility model relates to the special fishing socket of a kind of coiled tubing fish, belongs to drilling well fishing tool technical field.This special fishing socket, comprises mandrel, top connection, outer sleeve joint, outer sleeve, slips and slips tapered sleeve.One end of mandrel is provided with top connection, 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 tapered sleeve is equipped with in slips side, and one end of slips tapered sleeve is sleeved on slips.This special fishing socket is novel in design, and structure is simple; By the cooperation of slips and slips tapered sleeve in the course of work, the object of salvaging continuous oil pipe fish can be realized; Solve card fishing tool operation in existing routine to be restricted, and be restricted in construction because of the particularity of coiled tubing structure, cause the problem of salvaging poor effect.Be specially adapted to Oil/gas Well coiled tubing fish and salvage use.
Description
Technical field
The utility model relates to the special fishing socket of a kind of coiled tubing fish, belongs to drilling well fishing tool technical field.
Background technology
Along with deepening continuously of oil and gas exploitation technology, coiled tubing technology applying in oil and gas exploitation process is more and more extensive, and coiled tubing is also increasing year by year because of fracture that various situation the causes well accident that falls.Fishing tool both domestic and external has a lot, has the multi-functional slip socket for salvaging overweight fish at deep-well, ultradeep well, has to produce radial load and overcover is scatter to surrounding enter the spirally-guided reversible that fish chamber endoporus salvages fish smoothly and drag for lance.Because the wall thickness of coiled tubing is thinner, male and female cone thread making is salvaged, though the success of energy thread making, is difficult to propose fish.Moreover the welding muscle that the inner radius due to coiled tubing exists, makes conventional interior card fishing tool operation be restricted.In addition, because the coiled tubing fish head shapes of the well that falls mostly is irregularly shaped.Existing most tubing string is salvaged means (comprising instrument and technique) and is restricted in construction because of the particularity of coiled tubing structure, causes salvaging poor effect.
Summary of the invention
The purpose of this utility model is: provide a kind of after coiled tubing fracture falls well, can carry out fast salvaging, and salvage the effective special fishing socket of coiled tubing fish to coiled tubing fish.
The technical solution of the utility model is:
The special fishing socket of a kind of coiled tubing fish, comprise 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, mandrel is set with outer sleeve joint and outer sleeve, the ends screw of outer sleeve is provided with guide shoe; Mandrel one end in outer sleeve is provided with slips by Compress 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, described slips is provided with guiding fork, slips is provided with slips groove, slips tapered sleeve is provided with tapered sleeve groove, guiding fork to contact with slips tapered sleeve respectively by slips groove and tapered sleeve groove and slips and is connected.
Described mandrel is provided with central through hole.
Described guiding fork is made up of erection loop and prerotation vane, and on the end face of erection loop 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 slips head, and one end of slip spider is fixed with slips body, and the termination of slips body is provided with slips head, slips body and slips head is provided with the slips groove of through shape; The inner surface of slips head is provided with reverse hook teeth.
Described slips tapered sleeve bores sheet by mounting ring, slips and slips sleeve is formed, one end symmetry shape of mounting ring is provided with slips cone sheet, the other end of mounting ring is provided with slips sleeve, the inner surface of slips cone sheet is arc, the centre bore of slips sleeve is taper, slips sleeve is provided with tapered sleeve groove; The slips sleeve of tapered sleeve groove side is provided with circumferential groove.
The inwall of described outer sleeve is provided with stop screw, and stop screw is by being slidably connected with slips tapered sleeve with being slidably matched of circumferential groove.
Described outer sleeve joint termination contacts with the positive stop lug boss of mandrel and connects.
Be threaded between described outer sleeve and outer sleeve joint.
The utility model has the advantage of:
The special fishing socket of this coiled tubing fish is novel in design, and structure is simple; By the cooperation of slips and slips tapered sleeve in the course of work, extruding is formed to coiled tubing fish, thus caught, realize the object of salvaging continuous oil pipe fish thus, in salvaging process, slips is rotatable under the effect of thrust bearing, coiled tubing is entered in slips smoothly, solve card fishing tool operation in existing routine to be restricted, and be restricted in construction because of the particularity of coiled tubing structure, cause the problem of salvaging poor effect.Be specially adapted to Oil/gas Well coiled tubing fish and salvage use.
Accompanying drawing explanation
Fig. 1 is sectional structure schematic diagram of the present utility model;
Fig. 2 is the perspective view of slips of the present utility model;
Fig. 3 is the perspective view of slips tapered sleeve of the present utility model;
Fig. 4 is the perspective view of guiding fork of the present utility model;
Fig. 5 is slips of the present utility model, slips tapered sleeve, guiding fork analyse and observe syndeton schematic diagram;
Fig. 6 is slips of the present utility model, slips tapered sleeve, the three-dimensional syndeton schematic diagram of guiding fork.
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, Compress Spring, 9, thrust bearing, 10, slip spider, 11, slips body, 12, slips head, 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, erection loop, 21, prerotation vane, 22, slips tapered sleeve, 23, guiding fork, 24, stop screw.
Detailed description of the invention
The special fishing socket of this coiled tubing fish comprises 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, mandrel 1 is set with outer sleeve joint 3 and outer sleeve 4, is threaded between outer sleeve 4 and outer sleeve joint 3; The termination of outer sleeve joint 3 contacts with the positive stop lug boss 6 of mandrel 1 and connects.
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 Compress Spring 8 and thrust bearing 9.Slips cylindrically, is made up of slip spider 10, slips body 11 and slips head 12, and one end of slip spider 10 is fixed with slips body 11, and the termination of slips body 11 is provided with slips head 12, slips body 11 and slips head 12 is provided with the slips groove 13 of through shape; The inner surface of slips head 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 bores sheet 16 by mounting ring 15, slips and slips sleeve 17 is formed.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, slips sleeve 17 is provided with tapered sleeve groove 18; The slips sleeve 17 of tapered sleeve groove 18 side is provided with circumferential groove 19.The slips sleeve 17 of slips tapered sleeve 22 is sleeved on slips head 12.
Slips is provided with guiding fork 23.Guiding fork 23 is made up of erection loop 20 and prerotation vane 21, and on the end face of erection loop 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 by prerotation vane 21 respectively by with the coordinating of slips groove 13 and tapered sleeve groove 18, to contact with slips tapered sleeve 22 with slips and connect.Ensure that slips and slips tapered sleeve 22 are slotted the uniformity in orientation thus.
The inwall of outer sleeve 4 is provided with stop screw 24, stop screw 24, by being slidably connected with slips tapered sleeve 22 with being slidably matched of circumferential groove 19, limits slips tapered sleeve 22 moving axially at outer sleeve 4 thus, and slips tapered sleeve 22 can circumference be rotated.
When the special fishing socket of this coiled tubing fish works, after entering to guide shoe 7 endoporus wait the flat mouth fish head salvaged, enter in the slips head 12 of slips under the slips cone sheet 16 of slips tapered sleeve 22 is guided, and insert to the depth of slips body 11, in this course, due to tapered sleeve groove 18 being provided with circumferential groove 19, and circumferential groove 19 is slidably connected with the stop screw 24 on outer sleeve 4 inwall, and slips tapered sleeve 22 can circumference rotate; And thrust bearing 9 is equipped with in the tapered sleeve groove 18 being arranged on slips tapered sleeve 22 and slips due to the prerotation vane 21 of guiding fork 23 and slips groove 13, slips, therefore enter in process at fish head, slips tapered sleeve 22, guiding fork 23 and slips energy uniformity are freely rotated, to adapt to the flat mouth orientation of flat mouth fish head, to guarantee that the coiled tubing fish head that slips effectively grabs position, card division does not have large distortion.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.
After coiled tubing fish enters and puts in place, exerted pressure in outer sleeve 4 by top connection 2, under the effect of the pressure, slips entirety moves to guide shoe 7 side.In this course, because the slips head 12 of slips is tapered, the inner surface of slips head 12 is provided with reverse hook teeth 14, and the centre bore of slips sleeve 17 is all the taper corresponding with slips head 12, and slips sleeve 17 is sleeved on slips head 12.Therefore overall in the process of guide shoe 7 side movement at slips, slips sleeve 17 pairs of slips heads 12 form extruding, slips head 12 is forced to produce deformation, simultaneously under the effect of reverse hook teeth 14, coiled tubing is blocked by slips by fish firmly, can propose with this fishing socket, thus realize the salvaging of coiled tubing fish.
The special fishing socket of this coiled tubing fish is novel in design, and structure is simple; Solve card fishing tool operation in existing routine to be restricted, and be restricted in construction because of the particularity of coiled tubing structure, cause the problem of salvaging poor effect.Be specially adapted to Oil/gas Well coiled tubing fish and salvage use.
Claims (8)
1. the special fishing socket of coiled tubing fish, comprise 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), mandrel (1) is set with outer sleeve joint (3) and outer sleeve (4), 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 Compress 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, described slips is provided with guiding fork (23), slips is provided with slips groove (13), slips tapered sleeve (22) is provided with tapered sleeve groove (18), guiding fork (23) to contact with slips tapered sleeve (22) respectively by slips groove (13) and tapered sleeve groove (18) and slips and is connected.
2. the special fishing socket of a kind of coiled tubing fish according to claim 1, is characterized in that: described mandrel (1) is provided with central through hole (5).
3. the special fishing socket of a kind of coiled tubing fish according to claim 1, it is characterized in that: described guiding fork is made up of erection loop (20) and prerotation vane (21), on the end face of erection loop (20) one end, symmetry shape is provided with prerotation vane (21), and the cross section of prerotation vane (21) is arc-shaped.
4. the special fishing socket of a kind of coiled tubing fish according to claim 1, it is characterized in that: described slips cylindrically, be made up of slip spider (10), slips body (11) and slips head (12), one end of slip spider (10) is fixed with slips body (11), the termination of slips body (11) is provided with slips head (12), slips body (11) and slips head (12) is provided with the slips groove (13) of through shape; The inner surface of slips head (12) is provided with reverse hook teeth (14).
5. the special fishing socket of a kind of coiled tubing fish according to claim 1, it is characterized in that: described slips tapered sleeve (22) bores sheet (16) by mounting ring (15), slips and slips sleeve (17) is formed, 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, slips sleeve (17) is provided with tapered sleeve groove (18); The slips sleeve (17) of tapered sleeve groove (18) side is provided with circumferential groove (19).
6. the special fishing socket of a kind of coiled tubing fish according to claim 1, it is characterized in that: the inwall of described outer sleeve (4) is provided with stop screw (24), stop screw (24) is by being slidably connected with slips tapered sleeve (22) with being slidably matched of circumferential groove (19).
7. the special fishing socket of a kind of coiled tubing fish according to claim 1, is characterized in that: described outer sleeve joint (3) termination contacts with the positive stop lug boss (6) of mandrel (1) and connects.
8. the special fishing socket of a kind of coiled tubing fish according to claim 1, is characterized in that: be threaded between described outer sleeve (4) and outer sleeve joint (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420658516.0U CN204175225U (en) | 2014-11-06 | 2014-11-06 | The special fishing socket of a kind of coiled tubing fish |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420658516.0U CN204175225U (en) | 2014-11-06 | 2014-11-06 | The special fishing socket of a kind of coiled tubing fish |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204175225U true CN204175225U (en) | 2015-02-25 |
Family
ID=52564042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420658516.0U Withdrawn - After Issue CN204175225U (en) | 2014-11-06 | 2014-11-06 | The special fishing socket of a kind of coiled tubing fish |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204175225U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314503A (en) * | 2014-11-06 | 2015-01-28 | 长江大学 | Special catching sleeve for coiled tubing fish |
| CN107237610A (en) * | 2017-08-14 | 2017-10-10 | 中国石油大学(华东) | A kind of continuous pipe release device |
-
2014
- 2014-11-06 CN CN201420658516.0U patent/CN204175225U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314503A (en) * | 2014-11-06 | 2015-01-28 | 长江大学 | Special catching sleeve for coiled tubing fish |
| CN104314503B (en) * | 2014-11-06 | 2016-11-16 | 长江大学 | A kind of special fishing socket of coiled tubing fish |
| CN107237610A (en) * | 2017-08-14 | 2017-10-10 | 中国石油大学(华东) | A kind of continuous pipe release device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150225 Effective date of abandoning: 20161012 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |