CN201326385Y - Oil pipe screw sealer - Google Patents
Oil pipe screw sealer Download PDFInfo
- Publication number
- CN201326385Y CN201326385Y CNU2008201720917U CN200820172091U CN201326385Y CN 201326385 Y CN201326385 Y CN 201326385Y CN U2008201720917 U CNU2008201720917 U CN U2008201720917U CN 200820172091 U CN200820172091 U CN 200820172091U CN 201326385 Y CN201326385 Y CN 201326385Y
- Authority
- CN
- China
- Prior art keywords
- oil pipe
- joint
- box
- sealing ring
- conical surface
- 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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- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
Abstract
An oil pipe screw sealer is composed of a joint and a sealing ring, wherein the upper end of the joint is a box, the lower portion of the box is provided with a groove, and the sealing ring is installed in the groove. The upper inlet of the sealing ring is a conical hole, and the included angle between the conical surface and the axial line is 0-75degrees. The sealing ring is installed in the joint, and the conical surface in the front end of an oil pipe pin is contacted with the conical surface on the upper inlet of the sealing ring after the oil pipe pin is connected with the box on the upper end of the joint, thereby leading the front end of the oil pipe pin under the sealing state without contacting with dielectric in a well for avoiding corrosion therefore, which increases the service performance, prolongs the service life of an oil pipe, and has significant economic benefits.
Description
One, technical field
The utility model is the underground equipment that oil-water well is used, particularly a kind of oil pipe screw thread sealer.
Two, background technology
With after the box cupling box connects the G.I.H long-term work, oil pipe pin thread front end all can produce corrosion according to the oil pipe pin thread of standard GB 9252.3 processing, and this contacts the down-hole medium owing to oil pipe pin thread front end does not seal and does not cause.Oil pipe pin thread front end produces corrosion descends the oil pipe performance, produces the adverse consequences of two aspects: the one, and the screw thread blow-by produces leakage, causes oil-water well to stop annotating; The 2nd, oil pipe pin thread front end produces corrosion strength and descends, and causes that oil pipe threads off, and makes oil pipe and the downhole tool well that falls.More than the adverse consequences of two aspects all can cause heavy economic losses.
Three, summary of the invention
The purpose of this utility model is a kind of oil pipe screw thread sealer of design, makes its oil pipe pin thread front end can not produce corrosion, improves the oil pipe functional performance, prolongs oil pipe application life.
The purpose of this utility model is achieved in that by joint, joint ring to be formed, and upper end of joint is a box, and is fluted under the box, and joint ring is installed in the groove.
End entrance is a bell on the joint ring, and the conical surface and axis angle are 0 °-75 °.
Beneficial effect of the present utility model is: the oil pipe pin thread contacts with the taper surface of entrance, joint ring upper end with the conical surface that the upper end of joint box connects back oil pipe pin thread front end, making oil pipe pin thread front end be in sealing state does not contact with medium in the well, can not produce corrosion, can improve the functional performance of oil pipe, can prolong oil pipe application life, have remarkable economic efficiency.
Four, description of drawings
Accompanying drawing is an assembling drawing of the present utility model.
Five, the specific embodiment
Be made up of joint 1, joint ring 2, joint 1 upper end is a box, and is fluted under the box, and joint ring 2 is installed in the groove, and joint ring 2 is nonmetal, in the groove of can packing into.End entrance is a bell on the joint ring 2, and the conical surface and axis angle are 0 °-75 °.Joint 1 bottom is a pin thread, joins with on-the-spot tubing coupling.
Claims (3)
1, a kind of oil pipe screw thread sealer is characterized in that: be made up of joint (1), joint ring (2), joint (1) upper end is a box, and is fluted under the box, and joint ring (2) is installed in the groove.
2, oil pipe screw thread sealer according to claim 1 is characterized in that: it is bell that joint ring (2) is gone up end entrance, and the conical surface and axis angle are 0 °-75 °.
3, oil pipe screw thread sealer according to claim 1 is characterized in that: joint (1) bottom is a pin thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201720917U CN201326385Y (en) | 2008-09-26 | 2008-09-26 | Oil pipe screw sealer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201720917U CN201326385Y (en) | 2008-09-26 | 2008-09-26 | Oil pipe screw sealer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201326385Y true CN201326385Y (en) | 2009-10-14 |
Family
ID=41178358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201720917U Expired - Fee Related CN201326385Y (en) | 2008-09-26 | 2008-09-26 | Oil pipe screw sealer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201326385Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102926673A (en) * | 2012-12-02 | 2013-02-13 | 中国石油化工股份有限公司 | Destabilization-prevention oil pipe joint |
-
2008
- 2008-09-26 CN CNU2008201720917U patent/CN201326385Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102926673A (en) * | 2012-12-02 | 2013-02-13 | 中国石油化工股份有限公司 | Destabilization-prevention oil pipe joint |
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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: 20091014 Termination date: 20100926 |