CN204200145U - A kind of coiled tubing fish Special Fishing Tools - Google Patents
A kind of coiled tubing fish Special Fishing Tools Download PDFInfo
- Publication number
- CN204200145U CN204200145U CN201420658523.0U CN201420658523U CN204200145U CN 204200145 U CN204200145 U CN 204200145U CN 201420658523 U CN201420658523 U CN 201420658523U CN 204200145 U CN204200145 U CN 204200145U
- Authority
- CN
- China
- Prior art keywords
- mandrel
- slips
- reducing
- coiled tubing
- tooth
- 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- Withdrawn - After Issue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 a kind of coiled tubing fish Special Fishing Tools, belongs to drilling well fishing tool technical field.This Special Fishing Tools comprises urceolus, top connection, leading cone head, mandrel and reducing slips.The threaded one end of urceolus is provided with top connection, and urceolus is built with mandrel, and leading cone head is equipped with in mandrel termination, and reducing slips is sleeved on mandrel by mandrel reducing tooth.This Special Fishing Tools is novel in design, and structure is simple; The cooperation of mandrel reducing tooth and slips reducing tooth is passed through in the course of work, reducing slips is forced to produce radial deformation, and under the effect of overhead kick tooth, realize the object of salvaging continuous oil pipe fish head, 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 head and salvage use.
Description
Technical field
The utility model relates to a kind of coiled tubing fish Special Fishing Tools, 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 effective coiled tubing fish Special Fishing Tools to coiled tubing fish.
The technical solution of the utility model is:
A kind of coiled tubing fish Special Fishing Tools, comprises urceolus, top connection, leading cone head, mandrel and reducing slips; It is characterized in that: the threaded one end of urceolus is provided with top connection, by spring and mount pad, mandrel is installed in urceolus, core shaft end's head thread is provided with leading cone head, leading cone head is provided with guide plate by trip bolt, the mandrel of guide plate side is circumferentially provided with mandrel reducing tooth, reducing slips is sleeved on mandrel by mandrel reducing tooth, and the mandrel of described mount pad side is equipped with plain thrust bearing; The mandrel of plain thrust bearing side is provided with the spacing edge of a wing, described outer tube inner wall is provided with positive stop lug boss, mandrel is contacted with positive stop lug boss by the spacing edge of a wing and connects.
The mandrel of described mandrel reducing tooth side is provided with stopper slot.
Described reducing slips is made up of slips body, and cylindrically, one end of slips body is provided with spacing handle to slips body, and the inner surface of spacing handle is provided with spacing block set; Slips body is provided with telescopic chute, and the inner surface of slips body is provided with slips reducing tooth, and the external surface of slips body is provided with overhead kick tooth; Reducing slips is slidably connected by spacing block set and stopper slot.
Described reducing slips is arranged by welding muscle groove.
The utility model has the advantage of:
This coiled tubing fish Special Fishing Tools is novel in design, and structure is simple, the cooperation of mandrel reducing tooth and slips reducing tooth is passed through in the course of work, reducing slips is forced to produce radial deformation, and under the effect of overhead kick tooth, realize the object of salvaging continuous oil pipe fish head, in salvaging process, reducing slips is under the sliding effect of plain thrust bearing and stopper slot, mandrel can rotate by certain angle or slide, therefore the welding muscle existing for inner radius of coiled tubing can be hidden, thus make it enter in coiled tubing fish 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 head and salvage use.
Accompanying drawing explanation
Fig. 1 is sectional structure schematic diagram of the present utility model;
Fig. 2 is the structural representation of reducing slips of the present utility model;
Fig. 3 is the structural representation of mandrel of the present utility model;
Fig. 4 is the structure for amplifying schematic diagram at Figure 1A place.
In figure: 1, urceolus, 2, top connection, 3, leading cone head, 4, mandrel, 5, reducing slips, 6, spring, 7, mount pad, 8, guide plate, 9, mandrel reducing tooth, 10, spacing handle, 11, spacing block set, 12, telescopic chute, 13, slips reducing tooth, 14, overhead kick tooth, 15, plain thrust bearing, 16, the spacing edge of a wing, 17, positive stop lug boss, 18, welding muscle groove, 19, stopper slot.
Detailed description of the invention
This coiled tubing fish Special Fishing Tools comprises urceolus 1, top connection 2, leading cone head 3, mandrel 4 and reducing slips 5.The threaded one end of urceolus 1 is provided with top connection 2, is provided with mandrel 4 in urceolus 1 by spring 6 and mount pad 7.Mandrel 4 ends screw is provided with leading cone head 3, and leading cone head 3 is provided with guide plate 8 by trip bolt.
The mandrel 4 of guide plate 8 side is circumferentially provided with mandrel reducing tooth 9, and reducing slips 5 is sleeved on mandrel 4 by mandrel reducing tooth 9, thus forms mandrel 4 and " king bolt face coordinates " between slips 5.The mandrel 4 of mandrel reducing tooth 9 side is provided with stopper slot 19.
Reducing slips 5 is made up of slips body, and cylindrically, one end of slips body is provided with spacing handle 10 to slips body, and the inner surface of spacing handle 10 is provided with spacing block set 11; Slips body is provided with telescopic chute 12, the slips body below telescopic chute 12 is arranged by welding muscle groove 18; The inner surface of slips body is provided with slips reducing tooth 13, and the external surface of slips body is provided with overhead kick tooth 14; Reducing slips 5 is slidably connected by spacing block set 11 and stopper slot 19.
The mandrel 4 of mount pad 7 side is equipped with plain thrust bearing 15; The mandrel 4 of plain thrust bearing 15 side is provided with the spacing edge of a wing 16, urceolus 1 inwall is provided with positive stop lug boss 17, mandrel 4 is contacted with positive stop lug boss 17 by the spacing edge of a wing 16 and connects.
The reducing slips 5 of this coiled tubing fish Special Fishing Tools is provided with welding muscle groove 18.Because reducing slips 5 is contained on mandrel 4 by slips reducing tooth 13 engagement sleeves with mandrel reducing tooth 9, and leave certain gap between the flank of tooth that cooperatively interacts of slips reducing tooth 13 and mandrel reducing tooth 9; Therefore reducing slips 5 can rotate by certain angle or slide on mandrel 4.The object of the stopper slot 19 on mandrel 4 prevents slips reducing tooth 13 to disconnect with coordinating of mandrel reducing tooth 9.
Mandrel 4 is rotatable under the effect of plain thrust bearing 15.In the course of work, when coiled tubing fish is by the guiding of urceolus 1 front end leading cone head 3 and guide plate 8, be enclosed within reducing slips 5 after entering urceolus 1.In this course, because reducing slips 5 can rotate by certain angle or slide on mandrel 4, and slips body is provided with welding muscle groove 18, reducing slips 5 can avoid by welding muscle groove 18 the welding muscle that continuous pipe aperture place exists in the process entering coiled tubing fish, thus eliminate welding muscle to the intake resistance of reducing slips 5, and because reducing slips 5 is contained on mandrel 4 by slips reducing tooth 13 and the engagement sleeves of mandrel reducing tooth 9, and between the flank of tooth that cooperatively interacts of slips reducing tooth 13 and mandrel reducing tooth 9, leave certain gap (flank of tooth that slips reducing tooth 13 and mandrel reducing tooth 9 cooperatively interact is all domatic), therefore compressible reducing slips 5, makes its radial generation deformation (diameter diminishes), thus reducing slips 5 is entered in coiled tubing fish smoothly.
After reducing slips 5 enters to and puts in place in coiled tubing fish, upper lifting pipe post, now coiled tubing fish produces a downward pulling force, and drive reducing slips 5 to move backward, the flank of tooth cooperatively interacted due to slips reducing tooth 13 and mandrel reducing tooth 9 is all domatic, the process of minimum point to the peak movement of mandrel reducing tooth 9 of slips reducing tooth 13 in the process of reducing slips 5 movement backward, mandrel reducing tooth 9 now can apply a radial distracting force to reducing slips 5, reducing slips 5 radial direction is forced to produce deformation (diameter becomes large) thus, be both also to support under the effect of overhead kick tooth 14 thus by coiled tubing fish and catch, thus coiled tubing fish is fixed on firmly salvaging reducing slips 5 realizing coiled tubing fish.
This coiled tubing fish Special Fishing Tools 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 head and salvage use.
Claims (4)
1. a coiled tubing fish Special Fishing Tools, comprises urceolus (1), top connection (2), leading cone head (3), mandrel (4) and reducing slips (5); It is characterized in that: the threaded one end of urceolus (1) is provided with top connection (2), by spring (6) and mount pad (7), mandrel (4) is installed in urceolus (1), mandrel (4) ends screw is provided with leading cone head (3), leading cone head (3) is provided with guide plate (8) by trip bolt, the mandrel (4) of guide plate (8) side is circumferentially provided with mandrel reducing tooth (9), reducing slips (5) is sleeved on mandrel (4) by mandrel reducing tooth (9), and the mandrel (4) of described mount pad (7) side is equipped with plain thrust bearing (15); The mandrel (4) of plain thrust bearing (15) side is provided with the spacing edge of a wing (16), described urceolus (1) inwall is provided with positive stop lug boss (17), mandrel (4) to be contacted with positive stop lug boss (17) by the spacing edge of a wing (16) and connects.
2. a kind of coiled tubing fish Special Fishing Tools according to claim 1, is characterized in that: the mandrel (4) of described mandrel reducing tooth (9) side is provided with stopper slot (19).
3. a kind of coiled tubing fish Special Fishing Tools according to claim 1, it is characterized in that: described reducing slips (5) is made up of slips body, slips body cylindrically, one end of slips body is provided with spacing handle (10), and the inner surface of spacing handle (10) is provided with spacing block set (11); Slips body is provided with telescopic chute (12), the inner surface of slips body is provided with slips reducing tooth (13), and the external surface of slips body is provided with overhead kick tooth (14); Reducing slips (5) is slidably connected by spacing block set (11) and stopper slot (19).
4. a kind of coiled tubing fish Special Fishing Tools according to claim 1, is characterized in that: described reducing slips (5) is upper to be arranged by welding muscle groove (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420658523.0U CN204200145U (en) | 2014-11-06 | 2014-11-06 | A kind of coiled tubing fish Special Fishing Tools |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420658523.0U CN204200145U (en) | 2014-11-06 | 2014-11-06 | A kind of coiled tubing fish Special Fishing Tools |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204200145U true CN204200145U (en) | 2015-03-11 |
Family
ID=52658114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420658523.0U Withdrawn - After Issue CN204200145U (en) | 2014-11-06 | 2014-11-06 | A kind of coiled tubing fish Special Fishing Tools |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204200145U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358538A (en) * | 2014-11-06 | 2015-02-18 | 长江大学 | Special fishing spear for fishing of fishes of continuous oil pipe |
| CN110984897A (en) * | 2019-11-27 | 2020-04-10 | 淮安市井神钻采机具有限公司 | Fishing spear with co-operation of inner slip and outer slip |
-
2014
- 2014-11-06 CN CN201420658523.0U patent/CN204200145U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358538A (en) * | 2014-11-06 | 2015-02-18 | 长江大学 | Special fishing spear for fishing of fishes of continuous oil pipe |
| CN104358538B (en) * | 2014-11-06 | 2016-08-24 | 长江大学 | A kind of coiled tubing fish Special Fishing Tools |
| CN110984897A (en) * | 2019-11-27 | 2020-04-10 | 淮安市井神钻采机具有限公司 | Fishing spear with co-operation of inner slip and outer slip |
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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: 20150311 Effective date of abandoning: 20160824 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |