CN203499612U - Fishing spear special for packer - Google Patents
Fishing spear special for packer Download PDFInfo
- Publication number
- CN203499612U CN203499612U CN201320632464.5U CN201320632464U CN203499612U CN 203499612 U CN203499612 U CN 203499612U CN 201320632464 U CN201320632464 U CN 201320632464U CN 203499612 U CN203499612 U CN 203499612U
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- CN
- China
- Prior art keywords
- packer
- special
- mandrel
- pin
- fishing
- 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
A fishing spear special for a packer comprises an upper joint (1), a limiting sleeve (2), a slip (3), a pin (4), a central spindle (5) and clamping teeth (6). The fishing spear special for the packer is characterized in that the fishing spear special for the packer is of a three-stair cylinder structure, internal threads are arranged at the upper portion of the upper joint (1), external threads at the lower portion are connected with the limiting sleeve (2), the central spindle (5) is sleeved with the slip (3), the slip (3) is connected with the central spindle (5) through the pin (4), and external threads at the upper end of the central spindle (5) are connected with internal threads of a center hole in the upper joint (1). The fishing spear special for the packer is novel in structure and convenient to operate, the process for fishing the packer is easy, convenient and rapid, the fishing success rate is improved, quality accidents are avoided, working efficiency is improved, operating costs are saved, and the labor intensity of workers is reduced.
Description
Technical field
The utility model relates to oil field oil, water well operation fishing tool, specifically a kind of packer Special Fishing Tools.
Background technology
Salvaging JFS, Y445 packer mainly adopt 27/8TBG, 31/2TBG oil pipe make-up at present, work progress is: instrument is connected in to tubing string bottom G.I.H, during apart from top of fish 5-10m, turn on pump rinses and slowly transfers, 5-10kN forward tubing string 10～15 circles pressurize behind introduction fish chamber, in forward process, keep the pressure of the drill of 5～10kN constant, load increase is proposed in examination can carry out lower step construction, as examination is carried load without significant change, repeat above-mentioned steps secondary and salvage, until drag for, obtain.Through inquiring about relevant oil pipe crudy standard, 27/8TBG, 31/2TBG oil pipe pin thread end cone angle in use is 15 ° at present, this body diameter is φ 73mm, φ 89mm, when on buckle fisher, be subject to that cone angle is little, external diameter can not play the factors such as centralizing function affects very easily to cause and cannot introduce fish chamber, there is thread gluing, wear phenomenon, whole salvaging process of while is actually well head Power Tong and drives full well casing post to dock realization salvaging with fish chamber box, needs to meet following 4 points in whole process: the one, and positive torque abundance; The 2nd, moment of torsion can overcome the external factor such as hole deviation, viscous crude; The 3rd, docking box and pin is intact; The 4th, downhole packer is setting firmly; So often cause and do over again because influence factor is more.
Summary of the invention
The purpose of this utility model is exactly in view of the foregoing defects the prior art has, and a kind of packer Special Fishing Tools is provided.
Technical solutions of the utility model comprise: top connection, stop collar, slips, pin, mandrel, card tooth.Its packer Special Fishing Tools is three grades of ladder cylindrical structures, and top connection top is provided with internal thread, and lower external thread is connected with stop collar, and slip sleeve, on mandrel, is connected with mandrel by pin, and mandrel upper external screw thread is connected with top connection centre bore internal thread.
Slips top in above-mentioned packer Special Fishing Tools is arranged with round end rectangular slot, and the latter half is arranged with 4～6 oblong openings, and bottom is provided with card tooth.
Mandrel in above-mentioned packer Special Fishing Tools is provided with centre bore, and top is cylinder, and top is provided with pin, and bottom is " bullet " shape.
The beneficial effects of the utility model are: novel structure, easy to operate, the process that makes to salvage packer is easy, quick, promotes fishing success ratio, avoids quality accident, increases work efficiency, and saves operating cost, reduces workman's labour intensity.
Accompanying drawing explanation
Fig. 1-the utility model master looks local half section structural representation.
In accompanying drawing, 1. top connection, 2. stop collar, 3. slips, 4. pin, 5. mandrel, 6. card tooth, 502. groups; A. groove, B. opening, C. centre bore.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Shown in accompanying drawing, packer Special Fishing Tools is comprised of top connection 1, stop collar 2, slips 3, pin 4, mandrel 5, card tooth 6.Its packer Special Fishing Tools is three grades of ladder cylindrical structures, top connection 1 top is provided with internal thread and is connected with oil pipe, and lower external thread is connected with stop collar 2, and slips 3 is enclosed within on mandrel 5, by pin 4, be connected with mandrel 5, mandrel 5 upper external screw threads are connected with top connection 1 centre bore internal thread.
method of operating
?according to the specification of fish in well, select the Special fishing tool of corresponding size, top connection is connected with tubing string, and stop collar 2 restriction slips 3 shifting amount, in 10mm, down to apart from the circulation of top of fish 1m～2m place turn on pump, are rinsed top of fish.To be recycled normal after termination of pumping, enter fish chamber, when suspending weight reduces, stop transferring, carry on slowly, if suspending weight increases explanation, salvage successfully.
Claims (3)
1. a packer Special Fishing Tools, comprising: top connection (1), stop collar (2), slips (3), pin (4), mandrel (5), card tooth (6); It is characterized in that: described packer Special Fishing Tools is three grades of ladder cylindrical structures, top connection (1) top is provided with internal thread, lower external thread is connected with stop collar (2), slips (3) is enclosed within on mandrel (5), by pin (4), be connected with mandrel (5), mandrel (5) upper external screw thread is connected with top connection (1) centre bore internal thread.
2. packer Special Fishing Tools according to claim 1, is characterized in that: described slips (3) top is arranged with round end rectangular slot (A), and the latter half is arranged with 4～6 oblong openings (B), and bottom is provided with card tooth (6).
3. packer Special Fishing Tools according to claim 1, is characterized in that: described mandrel (5) is provided with centre bore (C), and top is cylinder, and top is provided with pin (4), and bottom is " bullet " shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320632464.5U CN203499612U (en) | 2013-10-15 | 2013-10-15 | Fishing spear special for packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320632464.5U CN203499612U (en) | 2013-10-15 | 2013-10-15 | Fishing spear special for packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203499612U true CN203499612U (en) | 2014-03-26 |
Family
ID=50330601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320632464.5U Expired - Fee Related CN203499612U (en) | 2013-10-15 | 2013-10-15 | Fishing spear special for packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203499612U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114427368A (en) * | 2021-12-31 | 2022-05-03 | 中国石油化工股份有限公司 | Method for salvaging coiled tubing of horizontal well |
-
2013
- 2013-10-15 CN CN201320632464.5U patent/CN203499612U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114427368A (en) * | 2021-12-31 | 2022-05-03 | 中国石油化工股份有限公司 | Method for salvaging coiled tubing of horizontal well |
| CN114427368B (en) * | 2021-12-31 | 2024-05-14 | 中国石油化工股份有限公司 | Horizontal well coiled tubing salvaging method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20141015 |
|
| EXPY | Termination of patent right or utility model |