CN201902764U - Pulling, reducing and taking mechanism for inner pipe of composite oil pipe - Google Patents
Pulling, reducing and taking mechanism for inner pipe of composite oil pipe Download PDFInfo
- Publication number
- CN201902764U CN201902764U CN2010206558625U CN201020655862U CN201902764U CN 201902764 U CN201902764 U CN 201902764U CN 2010206558625 U CN2010206558625 U CN 2010206558625U CN 201020655862 U CN201020655862 U CN 201020655862U CN 201902764 U CN201902764 U CN 201902764U
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- Prior art keywords
- pipe
- inner pipe
- composite oil
- oil
- tractive
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- Expired - Fee Related
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Abstract
The utility model relates to a corrosion and wear resistant pulling, reducing and taking mechanism for the inner pipe of a composite oil pipe in the field of oil and gas gathering transportation, such as oil wells, eccentric wear wells, directional wells, injection wells and on the like. The utility model comprises an outer pipe and an inner pipe of the composite oil pipe which are formed through interference fit, and the like. The outer pipe is clamped between fixed nuts on a fixed rack, and used as a fixed end; from the fixed end, an inner pipe reducing segment and an inner pipe outside diameter reducing segment are arranged sequentially and transitionally outwards. A tension pulling hook is arranged at the outlet of the inner pipe outside diameter reducing segment; the outer end of the tension pulling hook is connected with a pulling steel wire. By towing the steel wire to pull the tension pulling hook, the inner pipe is extended and the diameter is reduced, so that the inner pipe drops off the inner wall of an outer pipe until the inner pipe is pulled out. The utility model can take out the inner pipe of a worn composite oil pipe for replacement, so that the steel outer pipe can be reused, thereby saving steel, lowering oil exploiting cost and improving work efficiency.
Description
Technical field
The utility model relates to the anticorrosion antiwear composite oil pipe in oil-gas gathering and transportation fields such as a kind of oil well, eccentric wear well, directional well, water injection well, is specifically related to the tractive undergauge withdrawing device of pipe in the oil pipe, belongs to International Classification of Patents F16L technical field.
Background technique
At present, the anticorrosion antiwear composite oil pipe is located to have used in a large number at oil recovery well, eccentric wear well, directional well, water injection well etc. in the oil field, and it is normally assemblied by outer tube (steel pipe) and interior pipe (modified plastics pipe) interference.Can not take out replacing after the interior pipe wearing and tearing, outer tube can not reuse, and has wasted steel and fund, has increased the cost of winning of oil.
Summary of the invention
The purpose of this utility model provides the tractive undergauge unloading device of pipe in a kind of composite oil pipe.
The technical solution of the utility model is as follows:
Pipe tractive undergauge unloading device in a kind of composite oil pipe comprises in the steel pipe outer tube of the composite oil pipe that is assemblied by interference and the plastic tube and managing, and the fixing frame on the device, the parts such as set screw nut on the fixing frame.The steel outer tube is clamped between the set screw nut on the fixing frame, as fixed end, outside with this fixed end, pipe undergauge section and the interior external diameter of pipe section of dwindling in gradual change has successively are equipped with expansive force tractive hook in the outlet port of the interior external diameter of pipe section of dwindling, the outer end of expansive force tractive hook connects the tractive wire rope.
Pipe tractive undergauge takes out structure in the composite oil pipe of the present utility model, can take out replacing after the interior pipe wearing and tearing, and the interior pipe of taking-up can utilize once more, and outer steel pipe is reusable, has saved steel and inner tube material, has saved fund.
Description of drawings
Accompanying drawing is the schematic representation of pipe tractive undergauge unloading device in the utility model composite oil pipe.
Among the figure: 1, fixing frame, 2, set screw nut, 3, interior pipe, 4, outer tube, 5, interior pipe undergauge section, 6, the interior external diameter of pipe section of dwindling, 7, expansive force tractive hook, 8, the tractive wire rope.
Embodiment
Referring to accompanying drawing, pipe tractive undergauge unloading device comprises pipe 4 and interior pipe 3 outside the composite oil pipe that is assemblied by interference in the composite oil pipe, and installing an end is fixing frame 1, and outer tube 4 is a steel pipe, and interior pipe 3 is a plastic tube.Outer tube 4 is clamped between the set screw nut 2 on the fixing frame 1, as fixed end, outwards dwindle gradual change successively with this fixed end, be interior pipe undergauge section 5 and the interior external diameter of pipe section of dwindling 6, in the interior external diameter of pipe section of dwindling 6 outlets expansive force tractive hook 7 be housed, expansive force tractive hook 7 outer ends connect tractive wire rope 8.
During use, outside thread with composite oil pipe one end, be threaded in the set screw nut in the accompanying drawing so that outer tube 4 is fixing, expansive force tractive hook 7 is embedded in the inwall of interior pipe 3 ends of outer tube 4 the other ends, with the cylinder Wound steel rope of variable-speed, pulling expansive force tractive hook 7, until interior pipe 3 is elongated, make the reduced diameter of interior pipe 3, broken away from the inwall of outer tube 4, until pulling out interior pipe fully.
Claims (2)
1. manage tractive undergauge unloading device in a composite oil pipe, comprise pipe (4) and interior pipe (3) outside the composite oil pipe that assemblies by interference, and the fixing frame (1) on the device, it is characterized in that: described outer tube (4) is clamped between the set screw nut (2) on the fixing frame (1), be fixed end, pipe undergauge section (5) and the interior external diameter of pipe section of dwindling (6) in outwards gradual change has successively with this fixed end, outlet end in the interior external diameter of pipe section of dwindling (6) is equipped with expansive force tractive hook (7), and the outer end of expansive force tractive hook (7) connects tractive wire rope (8).
2. pipe tractive undergauge unloading device in the composite oil pipe according to claim 1, it is characterized in that: described outer tube (4) is a steel pipe; Interior pipe (3) is a plastic tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206558625U CN201902764U (en) | 2010-12-14 | 2010-12-14 | Pulling, reducing and taking mechanism for inner pipe of composite oil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206558625U CN201902764U (en) | 2010-12-14 | 2010-12-14 | Pulling, reducing and taking mechanism for inner pipe of composite oil pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201902764U true CN201902764U (en) | 2011-07-20 |
Family
ID=44273357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206558625U Expired - Fee Related CN201902764U (en) | 2010-12-14 | 2010-12-14 | Pulling, reducing and taking mechanism for inner pipe of composite oil pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201902764U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103600000A (en) * | 2013-12-05 | 2014-02-26 | 北京隆盛泰科石油管科技有限公司 | Method for producing lining bimetallic composite pipe by means of drawing and diameter reduction of lining pipe |
| CN103790537A (en) * | 2014-01-22 | 2014-05-14 | 胜利油田现河工贸有限责任公司 | Tensioner for repairing lining oil pipe and repair technology thereof |
| CN104075029A (en) * | 2014-06-19 | 2014-10-01 | 中国海洋石油总公司 | Dragging device for inner pipe of double-layer submarine pipeline |
| CN105499996A (en) * | 2016-03-01 | 2016-04-20 | 四川南格尔生物科技有限公司 | Device and method for pneumatically elastically assembling medical reducer multi-cavity tubes |
-
2010
- 2010-12-14 CN CN2010206558625U patent/CN201902764U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103600000A (en) * | 2013-12-05 | 2014-02-26 | 北京隆盛泰科石油管科技有限公司 | Method for producing lining bimetallic composite pipe by means of drawing and diameter reduction of lining pipe |
| CN103600000B (en) * | 2013-12-05 | 2016-08-17 | 北京隆盛泰科石油管科技有限公司 | Use and internal lining pipe stretching undergauge is realized the method that inner liner bimetal composite produces |
| CN103790537A (en) * | 2014-01-22 | 2014-05-14 | 胜利油田现河工贸有限责任公司 | Tensioner for repairing lining oil pipe and repair technology thereof |
| CN103790537B (en) * | 2014-01-22 | 2016-06-29 | 胜利油田现河工贸有限责任公司 | Liner tubing repair tension device and renovation technique thereof |
| CN104075029A (en) * | 2014-06-19 | 2014-10-01 | 中国海洋石油总公司 | Dragging device for inner pipe of double-layer submarine pipeline |
| CN104075029B (en) * | 2014-06-19 | 2016-02-10 | 中国海洋石油总公司 | The towed equipment of pipe in double-layer submarine pipeline |
| CN105499996A (en) * | 2016-03-01 | 2016-04-20 | 四川南格尔生物科技有限公司 | Device and method for pneumatically elastically assembling medical reducer multi-cavity tubes |
| CN105499996B (en) * | 2016-03-01 | 2017-12-08 | 四川南格尔生物科技有限公司 | A kind of aeroelasticity assembling device and method of medical reducing multi-lumen tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110720 Termination date: 20111214 |