CN205154084U - Coiled tubing salvages a section of thick bamboo - Google Patents
Coiled tubing salvages a section of thick bamboo Download PDFInfo
- Publication number
- CN205154084U CN205154084U CN201520916961.7U CN201520916961U CN205154084U CN 205154084 U CN205154084 U CN 205154084U CN 201520916961 U CN201520916961 U CN 201520916961U CN 205154084 U CN205154084 U CN 205154084U
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- China
- Prior art keywords
- coiled tubing
- block teeth
- fishing socket
- thick bamboo
- section
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Abstract
The utility model discloses a coiled tubing salvages a section of thick bamboo, salvage section of thick bamboo including top connection, intermediate cylinder and lower clutch are formed by connecting is provided with two -layer chucking device respectively in intermediate cylinder and lower clutch, every layer of chucking device comprises at the rotatory block teeth of salvage section of thick bamboo inner wall three evenly distributed, and the crisscross setting of rotatory block teeth of two -layer chucking device from top to bottom, rotatory block teeth configurations torsional spring after install on the support of intermediate cylinder or lower clutch inner wall through the round pin rotation of axes. Salvaging the in -process, if coiled tubing get into salvage a section of thick bamboo in, coiled tubing will inevitablely with at least one rotatory block teeth on the lower floor chucking device and at least one the rotatory block teeth contact on the upper chucking device, can tightly bite into coiled tubing through salvaging in the section of thick bamboo the rotatory block teeth more than two or two like this, and then come out coiled tubing salvage from the oil well in.
Description
Technical field
The utility model relates to a kind of coiled tubing fishing socket, belongs to Oil/gas Well underground fishing technical field.
Background technology
In recent years, in the maintenance process of Oil/gas Well, coild tubing unit is because it is easy to operate, the activity duration is short, remarkable in economical benefits, and it uses more and more.Along with applying of applications of coiled tubing unit, the situation that coiled tubing breaks in Oil/gas Well happens occasionally.
Because coiled tubing has, external diameter is little, wall is thin, flexibility is large, yielding feature, and after coiled tubing fracture, shape mostly is irregularly shaped, and therefore, adopt conventional salvaging mode operation to be restricted, cause salvaging poor effect, fishing success ratio is low.And existing coiled tubing fishing socket mostly is slips structure, and the fishing socket salvaging scope of slips structure is very limited, a kind of slips can only salvage a kind of coiled tubing of specification, when coiled tubing is when being out of shape large, the fishing socket of slips structure cannot be used to salvage, therefore, for the problems referred to above, the on-the-spot fishing socket being badly in need of a kind of new structure solves these problems.
Utility model content
The purpose of this utility model is to provide a kind of simple to operate, fishing success ratio is high, salvaging scope is wide coiled tubing fishing socket, to overcome the deficiencies in the prior art.
The technical solution of the utility model: a kind of coiled tubing fishing socket, comprise the fishing socket that top connection, intermediate cylinder and lower contact are formed by connecting, two-layer gripping mechanism is respectively arranged with in intermediate cylinder and lower contact, every layer of gripping mechanism is made up of the rotation block teeth that three are evenly distributed on fishing socket inwall, and the rotation block teeth of upper and lower two-layer gripping mechanism are crisscross arranged, be arranged on the bearing of intermediate cylinder or lower contact inwall by bearing pin after described rotation block teeth configuration torsion spring.
The front end of described rotation block teeth is provided with arc surface, and the angle α of this arc surface and fishing socket center line is 20 ~ 40 °.
Preferably, the angle α of described arc surface and fishing socket center line is 25 °.
Described both sides, rotation block teeth front end and arc surface are provided with sawtooth.
The insertion end of described bearing pin is provided with cottor pin.
Owing to have employed technique scheme, the utility model has the advantage of: the utility model salvages coiled tubing by the rotation block teeth on gripping mechanism double-deck in fishing socket, because the rotation block teeth of upper and lower two-layer gripping mechanism are crisscross arranged, in salvaging process, as long as coiled tubing enters in fishing socket, coiled tubing will inevitably rotate block teeth with at least one on lower floor gripping mechanism and rotate block teeth with at least one on the gripping mechanism of upper strata and contact, so namely, by rotation block teeth two or more in fishing socket, coiled tubing is tightly bitten, and then coiled tubing is salvaged out in oil well.Meanwhile, rotate briquetting rotating range large, be out of shape large coiled tubing and also can back down rotation block teeth, and at least rotate block teeth contact card with two tight, reach the function of salvaging large deformation coiled tubing.In addition, owing to being provided with sawtooth on rotation block teeth, when lifting coiled tubing fishing socket, rotate block teeth by the sawtooth of arc surface or side coiled tubing be engaged more and more tighter, avoid coiled tubing landing in salvaging process, raising fishing success ratio.Therefore, the utility model has simple to operate, easy to use, that fishing success ratio is high, salvaging scope is wide advantage, is particularly suitable for the use that Oil/gas Well salvages large deformation fracture coiled tubing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the B-B sectional view of Fig. 1;
Fig. 4 is the top view of the structural representation rotating block teeth in the utility model;
Fig. 5 is the C-C sectional view of Fig. 4;
Fig. 6 is the E enlarged drawing of Fig. 5.
Description of reference numerals: 1-top connection, 2-rotates block teeth, 2.1-arc surface, 2.2-sawtooth, 3-bearing pin, 4-cottor pin, 5-torsion spring, 6-intermediate cylinder, 7-lower contact, 8-bearing.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with drawings and Examples, the utility model is described in further detail.
Embodiment of the present utility model: the structural representation of coiled tubing fishing socket as shown in Figures 1 to 3, comprise the fishing socket that top connection 1, intermediate cylinder 6 and lower contact 7 are formed by connecting, two-layer gripping mechanism is respectively arranged with in intermediate cylinder 6 and lower contact 7, the axial spacing of two-layer gripping mechanism is 300mm, and is arranged on the oral area 100mm of the gripping mechanism distance lower contact 7 in lower contact 7; Every layer of gripping mechanism is made up of the rotating gripper 2 pieces that three are evenly distributed on fishing socket inwall, and the rotation block teeth 2 of upper and lower two-layer gripping mechanism are crisscross arranged, be rotatably mounted on the bearing 8 of intermediate cylinder 6 or lower contact 7 inwall after described rotation block teeth 2 configure torsion spring 5 by bearing pin 3; The insertion end of described bearing pin 3 is provided with cottor pin 4, prevents rotating block teeth 2 and comes off from bearing 8.See Fig. 4 and Fig. 5, the front end of described rotation block teeth 2 is provided with arc surface 2.1, and this arc surface 2.1 is 25 ° with the angle α of the center line of fishing socket.See Fig. 6, described both sides, rotation block teeth 2 front end and arc surface 2.1 are provided with sawtooth 2.2.
When adopting fishing socket to salvage coiled tubing, each degree of depth of salvaging should be greater than and is arranged on gripping mechanism in intermediate cylinder 6 to the distance of lower contact 7 oral area, is namely greater than 400mm.Therefore, as long as coiled tubing enters in fishing socket, coiled tubing will inevitably rotate block teeth 2 with at least one on gripping mechanism in lower contact 7 and rotate block teeth 2 with at least one on gripping mechanism in intermediate cylinder 6 and contact, in the process that coiled tubing contacts with rotation block teeth 2, rotate block teeth 2 to start to rotate around bearing pin 3, until the arc surface 2.1 rotating block teeth 2 front end is fitted in coiled tubing surface, when promoting coiled tubing, owing to being provided with sawtooth 2.2 on arc surface 2.1, thus make rotation block teeth 2 by sawtooth 2.2 coiled tubing is engaged more and more tighter, so namely, by rotation block teeth 2 two or more in fishing socket, coiled tubing is tightly bitten, and then coiled tubing is salvaged out in oil well.
Claims (5)
1. a coiled tubing fishing socket, comprise the fishing socket that top connection (1), intermediate cylinder (6) and lower contact (7) are formed by connecting, it is characterized in that: in intermediate cylinder (6) and lower contact (7), be respectively arranged with two-layer gripping mechanism, every layer of gripping mechanism is made up of the rotation block teeth (2) that three are evenly distributed on fishing socket inwall, and the rotation block teeth (2) of upper and lower two-layer gripping mechanism are crisscross arranged, described rotation block teeth (2) configuration torsion spring (5) are rotatably mounted on the bearing (8) of intermediate cylinder (6) or lower contact (7) inwall by bearing pin (3) afterwards.
2. coiled tubing fishing socket according to claim 1, is characterized in that: the front end of described rotation block teeth (2) is provided with arc surface (2.1), and this arc surface (2.1) is 20 ~ 40 ° with the angle α of fishing socket center line.
3. coiled tubing fishing socket according to claim 2, is characterized in that: described arc surface (2.1) is 25 ° with the angle α of fishing socket center line.
4. coiled tubing fishing socket according to claim 2, is characterized in that: described rotation block teeth (2) both sides, front end and arc surface (2.1) are provided with sawtooth (2.2).
5. coiled tubing fishing socket according to claim 1, is characterized in that: the insertion end of described bearing pin (3) is provided with cottor pin (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520916961.7U CN205154084U (en) | 2015-11-17 | 2015-11-17 | Coiled tubing salvages a section of thick bamboo |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520916961.7U CN205154084U (en) | 2015-11-17 | 2015-11-17 | Coiled tubing salvages a section of thick bamboo |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205154084U true CN205154084U (en) | 2016-04-13 |
Family
ID=55689792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520916961.7U Active CN205154084U (en) | 2015-11-17 | 2015-11-17 | Coiled tubing salvages a section of thick bamboo |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205154084U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107237610A (en) * | 2017-08-14 | 2017-10-10 | 中国石油大学(华东) | A kind of continuous pipe release device |
-
2015
- 2015-11-17 CN CN201520916961.7U patent/CN205154084U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |