CN2668824Y - Device for reducing friction resistant force of sound well pipe-column - Google Patents
Device for reducing friction resistant force of sound well pipe-column Download PDFInfo
- Publication number
- CN2668824Y CN2668824Y CNU2004200300351U CN200420030035U CN2668824Y CN 2668824 Y CN2668824 Y CN 2668824Y CN U2004200300351 U CNU2004200300351 U CN U2004200300351U CN 200420030035 U CN200420030035 U CN 200420030035U CN 2668824 Y CN2668824 Y CN 2668824Y
- Authority
- CN
- China
- Prior art keywords
- well completion
- well
- resistant force
- friction resistant
- pipe column
- 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 provides a device for reducing friction resistant force of a well completion pipe column used for the oil field oil (water) well completion operation. A detachable head and a detachable sleeve are sheathed through a step, and the connection between the detachable sleeve and a buckled joint and the connection between the buckled joint and a joint hoop are both the screwed connection. When in use, the detachable head is arranged downwards, the joint hoop is arranged upwards to connect in the well completion pipe column, and each sleeve tube or screen pipe is connected with a device. The connected pipe column is inserted into the well completion hole, and the problems that the friction resistant force influences the well completion schedule and increases the well drilling cost when the well completion pipe column is inserted into the well. The utility model can be widely applied to the oil field oil (water) well completion operation.
Description
Technical field:
The utility model relates to a kind of completion tubular column frictional resistance device that reduces that the completion practice of a kind of oil field oil (water) well is used.
Background technology:
Along with the oil field enters the middle and later periods, horizontal well, sidetracked hole, multilateral well drilling well get more and more, and these wells are bigger owing to hole curvature, and completion tubular column is lowered to the circuitous resistance of regular meeting often and influences drilling progress increase drilling cost.At present, also do not reduce the device or the equipment of frictional resistance, be badly in need of this device of development.
The utility model content:
In order to overcome problems of the prior art, the utility model provides a kind of completion tubular column frictional resistance device that reduces.This device can increase the tail pipe flexibility, makes completion tubular easy through deep camber well Duan Shigeng, and it reduces frictional resistance when completion tubular column is gone into the well, and makes completion tubular column safety smoothly down to giving allocation.
The technical scheme that its technical problem that solves the utility model adopts is: be provided with active head and pass through the step socket with active cover in this device, active cover is connected with change snapping head thread, becomes the snapping head and is connected with screw threads of coupler.With active head downwards, box cupling is connected in the completion tubular column up during use, and every sleeve pipe or screen casing connect one, and the tubing string that connects is lowered in the finishing drilling well.
The beneficial effects of the utility model are, this device has the interior external diameter identical with completion tubular column and is convenient to connect, as long as it is connected in the completion tubular column, the frictional resistance that it can reduce completion tubular column produces when going into the well, it also has the tail pipe of increase flexibility, makes completion tubular column easy through deep camber well Duan Shigeng.
Description of drawings:
Accompanying drawing is the utility model overall structure schematic diagram.
Among the figure 1, active head, 2, active cover, 3, become the snapping head, 4, box cupling.
The specific embodiment:
In Fig. 1, active 1 of cylindrical shape and the active cover 2 of cylindrical shape are passed through the step socket, active cover 2 and 3 screwed connections of cylinder deformation snapping head become snapping head 3 and 4 screwed connections of cylindrical shape box cupling.Downward with active 1 during use, box cupling is connected in the completion tubular column up, and every endowel or screen casing connect a device, and the tubing string that connects is lowered in the finishing drilling well.
Claims (1)
1, a kind of completion tubular column frictional resistance device that reduces, it is characterized in that: active head of cylindrical shape (1) and the active cover of cylindrical shape (2) are passed through the step socket, active cover (2) and cylinder deformation snapping head (3) screwed connection become snapping head (3) and cylindrical shape box cupling (4) screwed connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200300351U CN2668824Y (en) | 2004-01-05 | 2004-01-05 | Device for reducing friction resistant force of sound well pipe-column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200300351U CN2668824Y (en) | 2004-01-05 | 2004-01-05 | Device for reducing friction resistant force of sound well pipe-column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2668824Y true CN2668824Y (en) | 2005-01-05 |
Family
ID=34441579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004200300351U Expired - Fee Related CN2668824Y (en) | 2004-01-05 | 2004-01-05 | Device for reducing friction resistant force of sound well pipe-column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2668824Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358525A (en) * | 2014-09-12 | 2015-02-18 | 中国石油集团长城钻探工程有限公司 | Rotation-prevention connecting structure for pipe column |
| CN108150120A (en) * | 2018-03-09 | 2018-06-12 | 中海石油(中国)有限公司湛江分公司 | A kind of feeding casing back-off joint combination unit and operating method |
-
2004
- 2004-01-05 CN CNU2004200300351U patent/CN2668824Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358525A (en) * | 2014-09-12 | 2015-02-18 | 中国石油集团长城钻探工程有限公司 | Rotation-prevention connecting structure for pipe column |
| CN108150120A (en) * | 2018-03-09 | 2018-06-12 | 中海石油(中国)有限公司湛江分公司 | A kind of feeding casing back-off joint combination unit and operating method |
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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: 20050105 Termination date: 20110105 |