CN2668820Y - Directive device for branch well - Google Patents
Directive device for branch well Download PDFInfo
- Publication number
- CN2668820Y CN2668820Y CNU2004200300370U CN200420030037U CN2668820Y CN 2668820 Y CN2668820 Y CN 2668820Y CN U2004200300370 U CNU2004200300370 U CN U2004200300370U CN 200420030037 U CN200420030037 U CN 200420030037U CN 2668820 Y CN2668820 Y CN 2668820Y
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- CN
- China
- Prior art keywords
- joint
- branch well
- utility
- model
- rotation
- 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 directive device for a branch well used in the oil field oil (water) well completion operation. A public joint is sheathed with a buckled joint whose lower end is provided with a steel ball. The buckled joint and a cylindrical main joint are connected in a thread way to form the directive device for a branch well. The problems of the existing technology that when the tail pipe is very long, the rotation is very difficult in the process of the branch well completion, and whether the rotation reaches the position can not judge. 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 Multilateral Wells bearing unit of using in the completion practice of a kind of oil field oil (water) well.
Background technology:
Present domestic oil field is all constantly being studied, is being innovated on drilling and production technology, it is a new technology that multilateral well bores completion technique, needing to drop into great amount of manpower and material resources studies, up to the present its completion technique also has a lot of problems not solve, when the directed location of Multilateral Wells completion tubular column, there is the rotation difficulty, the device or the equipment that also do not have this respect need a kind of device of development to solve.
The utility model content:
In order to overcome problems of the prior art, the utility model provides a kind of Multilateral Wells bearing unit, this device has the interior external diameter identical with completion tubular column, frictional resistance when in the Multilateral Wells tubing string, using this device can reduce the tail pipe rotation, can make the successfully directed location of completion tubular column safety, solve the problem of rotation difficulty when completion tubular column is directed locatees.
Solving the technical scheme that its technical problem adopts is: be provided with columnar male joint and cylinder deformation snapping headgear connects in this device, be provided with steel ball in change snapping head lower end, change snapping head is threaded with the cylindrical shape female joint and constitutes a kind of Multilateral Wells bearing unit.This device is connected under the Multilateral Wells hanger, tail pipe string top, when tail pipe down to give allocation when directed the tail pipe string need rotation, when tail pipe is very long, rotates the comparison difficulty, and can't judge whether to put in place; After using this device, just preferably resolve these problems, and good through trial effect.
The beneficial effects of the utility model are that this device has the interior external diameter identical with completion tubular column to be convenient to connect, easy to operate, as long as this device is connected in the completion tubular column, frictional resistance when it can reduce the tail pipe rotation, when the directed location of tail pipe, rotation can put in place flexibly smoothly.
Description of drawings:
Accompanying drawing is the utility model overall structure schematic diagram.
Among the figure 1, male joint, 2, become the snapping head, 3, steel ball, 4, female joint.
The specific embodiment:
In Fig. 1, with cylindrical shape male joint 1 and 2 sockets of cylinder deformation snapping head, be provided with steel ball 3 in change snapping head 2 lower ends, become snapping head 2 and be threaded with cylindrical shape female joint 4.Female joint 4 with this device during use upwards is connected with the Multilateral Wells hanger, and male joint 1 is connected with completion tubular column down, and the tubing string that connects is lowered in the finishing drilling well.
Claims (1)
1, a kind of Multilateral Wells bearing unit, it is characterized in that: in this device, be provided with cylindrical shape male joint (1) and cylinder deformation snapping head (2) socket, be provided with steel ball (3) in change snapping head (2) lower end, become snapping head (2) and be threaded with cylindrical shape female joint (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200300370U CN2668820Y (en) | 2004-01-05 | 2004-01-05 | Directive device for branch well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200300370U CN2668820Y (en) | 2004-01-05 | 2004-01-05 | Directive device for branch well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2668820Y true CN2668820Y (en) | 2005-01-05 |
Family
ID=34441581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004200300370U Expired - Fee Related CN2668820Y (en) | 2004-01-05 | 2004-01-05 | Directive device for branch well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2668820Y (en) |
-
2004
- 2004-01-05 CN CNU2004200300370U patent/CN2668820Y/en not_active Expired - Fee Related
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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 |