CN203685099U - Coiled tubing alligator clip for fishing - Google Patents
Coiled tubing alligator clip for fishing Download PDFInfo
- Publication number
- CN203685099U CN203685099U CN201420004084.1U CN201420004084U CN203685099U CN 203685099 U CN203685099 U CN 203685099U CN 201420004084 U CN201420004084 U CN 201420004084U CN 203685099 U CN203685099 U CN 203685099U
- Authority
- CN
- China
- Prior art keywords
- axle
- coiled tubing
- sliding sleeve
- mandrel
- top connection
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a coiled tubing alligator clip for fishing. The coiled tubing alligator clip comprises an upper connector. The inner circle of the lower end of the upper connector is connected with the upper end of a mandrel in a sleeved mode and an inner cavity of the upper connector is communicated with an inner cavity of the mandrel; the lower end of the inner cavity of the mandrel is provided with a nozzle in the inclined lower direction, a boss facing upwards is arranged on the outer surface of the lower end of the mandrel, a sliding sleeve is arranged on the boss, a pressure opening is formed in the portion, in the height position of the upper end of the sliding sleeve, of the mandrel in the radial direction, a lower connector is arranged on the outer surface of the sliding sleeve in a sleeved mode, a spring is arranged between the upper end of the lower connector and the lower end of the upper connector, and a cylinder is fixedly arranged on the outer surface of the lower end of the lower connector in a sleeved mode; the lower end of the mandrel is hinged to a pair of clip bodies through a rotary shaft and two force arms of the clip bodies are rotationally connected with the cylinder. According to the coiled tubing alligator clip, the cylinder drives the clip bodies to be unfolded through the action of fluid and the fluid is ejected by the nozzle to wash a dropped article. After the article is clamped, the clip bodies are fastened through the spring force. The coiled tubing alligator clip is suitable for fishing small articles such as fragments and screws. Washing and fishing can be accomplished through one time of operation.
Description
Technical field
The utility model belongs to mechanical equipment technical field, relates to a kind of coiled tubing and salvages jaw formula pincers.
Background technology
In workover treatment, often encounter the small articles such as screw, steel ball, the pincers tooth well that falls, this brings certain potential safety hazard to underground work.Coiled tubing fishing operation has the following advantages compared with wire rope fishing operation: 1) coiled tubing can the various flush fluids of continuous circulation, and utilize fluid to take the chip at junk top out of well head; 2) coiled tubing can particularly transmit axial force in horizontal well effectively at high angle hole, and junk is carried out to jarring, salvaging; 3) coiled tubing can complete simultaneously and rinse and salvage two operations.
Coiled tubing fishing operation is applied successful abroad, at present domesticly also starts to use successively continuous oil pipe tool to carry out fishing, but all more complicated of existing structure cause cost of manufacture high, and it is not very convenient using.
Utility model content
The utility model object is to provide a kind of coiled tubing and salvages jaw formula pincers, has solved all more complicated of existing structure, causes cost of manufacture high, and using is not problem very easily.
The technical scheme that the utility model adopts is, a kind of coiled tubing is salvaged jaw formula pincers, comprises top connection, and top connection lower end inner circle is socketed with axle upper end, and the inner chamber of top connection communicates with the inner chamber of axle; The inner chamber lower end edge of axle tiltedly descends direction to have nozzle, the lower end external surface of axle is provided with boss upward, on this boss, sit and have sliding sleeve, in the axle of sliding sleeve upper end height and position, radially have pressure port, sliding sleeve external surface is set with lower contact, between the upper end of lower contact and top connection lower end, be provided with spring, the lower end external surface fixed cover of lower contact is equipped with cylindrical shell; The lower end of axle is hinged with pair of jaws by rotating shaft, and this is in transmission connection to two of clamp arm of forces and cylindrical shell.
Coiled tubing of the present utility model is salvaged jaw formula pincers, is further characterized in that:
Top connection is fixedly connected with by jackscrew with axle.
Contact surface between top connection and axle is provided with sealing ring one, and the contact surface between lower contact and axle is provided with sealing ring two, and the contact surface between sliding sleeve and lower contact is provided with sealing ring three, and the contact surface between sliding sleeve and axle is provided with sealing ring four.
The beneficial effects of the utility model are: by stationary spindle, drive the motion of alligator forceps connecting axle, thereby control clamp opening and closing at fluid effect lower shell, realize clamp and firmly grasp function; And the nozzle that install axle lower end, can realize the flushing to junk, specifically comprises: 1) carry nozzle, make two operations of the flushing of junk and salvaging once complete; 2), according to hole condition exchangeable nozzle and claw, realize the requirement of different-diameter continuous oil pipe operation; 3) jaw is normally closed, is subject to open after fluid effect, has function of self-tightening after catching junk; 4) inner sliding sleeve design, convenient processing and maintenance.
Brief description of the drawings
Fig. 1 is the half sectional view (jaw normally off) that the utility model coiled tubing is salvaged jaw formula pincers;
Fig. 2 is the jaw open configuration schematic diagram of the utility model alligator grab.
In figure, 1. top connection, 2. jackscrew, 3. spring, 4. axle, 5. lower contact, 6. sliding sleeve, 7. cylindrical shell, 8. nozzle, 9. rotating shaft, 10. clamp, 11. sealing ring one, 12. sealing ring two, 13. sealing ring three, 14. sealing ring four, 15. pressure port.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
With reference to Fig. 1, Fig. 2, the structure that the utility model coiled tubing is salvaged jaw formula pincers is to comprise top connection 1, top connection 1 lower end inner circle and axle 4 upper end sockets, the inner chamber of top connection 1 communicates with the inner chamber of axle 4, and top connection 1 is fixedly connected with (radially holding out against) with axle 4 by jackscrew 2;
The inner chamber lower end edge of axle 4 tiltedly descend direction have nozzle 8(at least one), the lower end external surface of axle 4 is provided with boss upward, on this boss, sit and have sliding sleeve 6, in the axle 4 of sliding sleeve 6 upper end height and positions, radially have pressure port 15, sliding sleeve 6 external surfaces are set with lower contact 5, between the upper end of lower contact 5 and top connection 1 lower end, be provided with spring 3, the lower end external surface fixed cover of lower contact 5 is equipped with cylindrical shell 7;
The lower end of axle 4 is hinged with pair of jaws 10 by rotating shaft 9, and this is in transmission connection to two of clamp 10 arm of forces and cylindrical shell 7.
Contact surface between top connection 1 and axle 4 is provided with sealing ring 1, contact surface between lower contact 5 and axle 4 is provided with sealing ring 2 12, contact surface between sliding sleeve 6 and lower contact 5 is provided with sealing ring 3 13, and the contact surface between sliding sleeve 6 and axle 4 is provided with sealing ring 4 14.
When the pressure of pressure port 15 increases, just can push lower contact 5 and move up, Compress Spring 3, drives on cylindrical shell 7 simultaneously and moves, and pair of jaws 10 is opened; Otherwise the pressure of pressure port 15 disappears, spring 3 just can push lower contact 5 and move down, and drives cylindrical shell 7 to move down simultaneously, makes pair of jaws 10 closures.
The course of work of the utility model device is:
Figure 1 shows that the jaw normally off of the utility model alligator grab, Figure 2 shows that the jaw open configuration of the utility model alligator grab, in salvaging process, nozzle 8 can be realized the flushing to junk, in the time that fluid pressure increases to setting value, the effect of being under pressure of lower contact 5 inner chambers, compresses spring 3, and lower contact 5 simultaneously drives cylindrical shell 7 to move up, and rotating shaft 9 fixes with cylindrical shell 7, therefore under the effect of rotating shaft 9, clamp 10 opens, and enters duty.
Find junk position accurately, can offload fluid pressure, spring 3 promotes lower contact 5 and cylindrical shell 7 moves downward, thereby drives promptly junk of clamp 10.Because pincers tooth is the tooth form of particular design, in the process promoting in salvaging, pulling force is larger again, and it is tighter that clamp is grabbed.
The utility model alligator grab is mainly used in workover treatment, salvages landwaste, screw, pincers tooth etc.The present invention once completes two operations of the flushing of junk and salvaging, can change different nozzles and clamp type according to hole condition, is applicable to sizes well fishing.
Claims (3)
1. a coiled tubing is salvaged jaw formula pincers, it is characterized in that: comprise top connection (1), and top connection (1) lower end inner circle and the socket of axle (4) upper end, the inner chamber of top connection (1) communicates with the inner chamber of axle (4);
The inner chamber lower end edge of axle (4) tiltedly descends direction to have nozzle (8), the lower end external surface of axle (4) is provided with boss upward, on this boss, sit and have sliding sleeve (6), in the axle (4) of sliding sleeve (6) upper end height and position, radially have pressure port (15), sliding sleeve (6) external surface is set with lower contact (5), between the upper end of lower contact (5) and top connection (1) lower end, be provided with spring (3), the lower end external surface fixed cover of lower contact (5) is equipped with cylindrical shell (7);
The lower end of axle (4) is hinged with pair of jaws (10) by rotating shaft (9), and this two arm of forces and cylindrical shell (7) to clamp (10) is in transmission connection.
2. coiled tubing according to claim 1 is salvaged jaw formula pincers, it is characterized in that: described top connection (1) is fixedly connected with by jackscrew (2) with axle (4).
3. coiled tubing according to claim 1 is salvaged jaw formula pincers, it is characterized in that: the contact surface between described top connection (1) and axle (4) is provided with sealing ring one (11), contact surface between lower contact (5) and axle (4) is provided with sealing ring two (12), contact surface between sliding sleeve (6) and lower contact (5) is provided with sealing ring three (13), and the contact surface between sliding sleeve (6) and axle (4) is provided with sealing ring four (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420004084.1U CN203685099U (en) | 2014-01-03 | 2014-01-03 | Coiled tubing alligator clip for fishing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420004084.1U CN203685099U (en) | 2014-01-03 | 2014-01-03 | Coiled tubing alligator clip for fishing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203685099U true CN203685099U (en) | 2014-07-02 |
Family
ID=51007018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420004084.1U Expired - Fee Related CN203685099U (en) | 2014-01-03 | 2014-01-03 | Coiled tubing alligator clip for fishing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203685099U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110331955A (en) * | 2019-07-17 | 2019-10-15 | 中国石油集团渤海钻探工程有限公司 | A kind of coiled tubing releasable cable fishing tool and its application method |
-
2014
- 2014-01-03 CN CN201420004084.1U patent/CN203685099U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110331955A (en) * | 2019-07-17 | 2019-10-15 | 中国石油集团渤海钻探工程有限公司 | A kind of coiled tubing releasable cable fishing tool and its application method |
| CN110331955B (en) * | 2019-07-17 | 2021-05-11 | 中国石油集团渤海钻探工程有限公司 | Releasable cable fishing tool for coiled tubing and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20170103 |