CN201835779U - Oil expansion pipe seat sealing system - Google Patents
Oil expansion pipe seat sealing system Download PDFInfo
- Publication number
- CN201835779U CN201835779U CN2010201159845U CN201020115984U CN201835779U CN 201835779 U CN201835779 U CN 201835779U CN 2010201159845 U CN2010201159845 U CN 2010201159845U CN 201020115984 U CN201020115984 U CN 201020115984U CN 201835779 U CN201835779 U CN 201835779U
- Authority
- CN
- China
- Prior art keywords
- expansion pipe
- pipe seat
- expansion
- ring
- sealing ring
- 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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- Sealing Material Composition (AREA)
- Gasket Seals (AREA)
Abstract
The utility model provides an oil expansion pipe seat sealing system. The oil expansion pipe seat sealing system comprises an expansion pipe body (1), and a sealing ring piece surrounding the expansion pipe body (1), wherein the sealing ring piece is formed by inlaying a metal sealing ring (2) in an organic sealing ring (3). The oil expansion pipe seat sealing system can prevent the expansion head from being stuck during the expansion process of the expansion pipe, and has high resistance to high temperature. Accordingly, the oil expansion pipe seat sealing system particularly suits expansion pipe patching of thermal production wells.
Description
Technical field
The utility model relates to a kind of petroleum expansion pipe seat envelope system that is used for oil drilling, completion, well workover.
Background technology
Bulged tube technology is exactly that tubing string is descended to the down-hole, with the method for machinery or hydraulic pressure, makes expansion tubing string generation permanent plastic deformation, the internal diameter of well or flow string is enlarged, to satisfy the field produces needs.The well that has can reach 350 ℃ because downhole temperature is higher as thermal production well temperature when the steam injection, under such hole condition, uses conventional elastic body to make joint ring separately, and as rubber and goods thereof, or polytetrafluoroethylene (PTFE) and goods thereof etc. have just lost a seat envelope function.
Chinese patent 200520127117.2 (notification number CN2851544) discloses a kind of novel expansion tube shape metallic leak-proof structure, on the outer arm of expansion body, be provided with metal ring to convex ridge, metal ring has chamfering to the design of the two sides of convex ridge, metal ring is established with the fillet form to the root of convex ridge, the stress that reduces to occur when carrying out plastic strain is concentrated, metal ring is designed to integrally formed integral sealing tubular structure to convex ridge structure and expansion tube, processes with machining process integral body.The radial dimension of this structural metal hoop convex ridge is difficult for grasping, and in actual applications, causes the phenomenon of head " being blocked " that expands that expands easily in the expansion tube expansion process, thereby causes the failure of expanding.
The utility model content
The purpose of this utility model is to provide a kind of petroleum expansion pipe seat envelope system, with overcome existing expansion tube joint ring non-refractory, metal ring causes the problem of " being blocked " easily in the expansion tube expansion process to the convex ridge hermetically-sealed construction.
Petroleum expansion pipe seat of the present utility model seals system, is made up of expansion tube body and the sealing ring that is looped around on the described expansion tube body, and described sealing ring is embedded in organic joint ring by metallic packing ring and constitutes.
The metallic packing ring that is embedded in organic joint ring can be 1 or a plurality of (containing 2).
Described expansion tube body can be surrounded with described sealing ring for 1 section or multistage (containing 2 sections).
The material of described organic joint ring can be rubber or polytetrafluoroethylene (PTFE).
The material of described metallic packing ring can be for being selected from copper, copper alloy, aluminium, aluminium alloys, lead, metal and the mild steel one or more.
A kind of petroleum expansion pipe seat of the present utility model seals system, has following advantage:
(1) in the expansion tube expansion process, the head difficult " being blocked " that expands expands.
(2) petroleum expansion pipe seat envelope system can be high temperature resistant, is particularly suitable for the subsidy of thermal production well expansion tube.
Description of drawings
Fig. 1 is the schematic diagram of a part in the vertical section of a kind of petroleum expansion pipe seat envelope of the present utility model system.
Reference numeral refers to as follows:
1-expansion tube body, 2-metallic packing ring, the organic joint ring of 3-.
The specific embodiment
Below in conjunction with accompanying drawing a kind of petroleum expansion pipe seat envelope of the present utility model system is described further, to help understanding content of the present utility model.
As shown in Figure 1, this petroleum expansion pipe seat envelope system is made up of expansion tube body 1 and the sealing ring that is looped around on the described expansion tube body 1, and described sealing ring is embedded in organic joint ring 3 by metallic packing ring 2 and constitutes.Organic joint ring 3 is rubber or polytetrafluoroethylproducts products, the material of metallic packing ring 2 is a kind of in copper and copper alloy, aluminium and aluminium alloys, lead and metal and the mild steel, when carrying out the expansion tube system assembles, metallic packing ring 2 is embedded in organic joint ring 3,2 at least 1 of metallic packing rings have been represented 2 among Fig. 1.In the expansion tube system, described petroleum expansion pipe seat seals at least 1 section of system, can multistage.
The utility model not only can be used for the casing patching of Oil, Water, Gas well, also can be used for simultaneously newly boring the open hole well borehole wall easily caves in or the stratum have leakage the well section the borehole wall firmly or leak stopping, also can be applicable to deepened well, sidetracked hole.
Claims (5)
1. petroleum expansion pipe seat envelope system is made up of expansion tube body (1) and the sealing ring that is looped around on the described expansion tube body (1), and it is characterized in that: described sealing ring is embedded in the middle formation of organic joint ring (3) by metallic packing ring (2).
2. a kind of petroleum expansion pipe seat according to claim 1 seals system, it is characterized in that: the metallic packing ring (2) that is embedded in organic joint ring (3) is a plurality of.
3. a kind of petroleum expansion pipe seat according to claim 1 seals system, and it is characterized in that: the multistage of described expansion tube body (1) is surrounded with described sealing ring.
4. a kind of petroleum expansion pipe seat according to claim 1 seals system, and it is characterized in that: the material of described organic joint ring (3) is rubber or polytetrafluoroethylene (PTFE).
5. a kind of petroleum expansion pipe seat envelope according to claim 1 system is characterized in that: the material of described metallic packing ring (2) is to be selected from a kind of in copper, copper alloy, aluminium, aluminium alloys, lead, metal and the mild steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201159845U CN201835779U (en) | 2010-02-10 | 2010-02-10 | Oil expansion pipe seat sealing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201159845U CN201835779U (en) | 2010-02-10 | 2010-02-10 | Oil expansion pipe seat sealing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201835779U true CN201835779U (en) | 2011-05-18 |
Family
ID=44005885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201159845U Expired - Fee Related CN201835779U (en) | 2010-02-10 | 2010-02-10 | Oil expansion pipe seat sealing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201835779U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102312663A (en) * | 2011-08-23 | 2012-01-11 | 安徽科技学院 | Leakage blocking device for leaking oil well |
| CN103244673A (en) * | 2013-05-23 | 2013-08-14 | 张家港市三利密封合金材料有限公司 | Oblique inner screw-thread sealing ring |
| CN105569603A (en) * | 2014-10-14 | 2016-05-11 | 中国石油天然气股份有限公司 | Sealing device for high-temperature well completion |
| CN107869313A (en) * | 2016-09-26 | 2018-04-03 | 中国石油化工股份有限公司 | A kind of hollow rod elevated-temperature seal attachment means and connection method |
| CN114382455A (en) * | 2022-01-12 | 2022-04-22 | 北京科源博慧技术发展有限公司 | Shale gas horizontal well repeated fracturing method |
-
2010
- 2010-02-10 CN CN2010201159845U patent/CN201835779U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102312663A (en) * | 2011-08-23 | 2012-01-11 | 安徽科技学院 | Leakage blocking device for leaking oil well |
| CN102312663B (en) * | 2011-08-23 | 2014-03-12 | 安徽科技学院 | Leakage blocking device for leaking oil well |
| CN103244673A (en) * | 2013-05-23 | 2013-08-14 | 张家港市三利密封合金材料有限公司 | Oblique inner screw-thread sealing ring |
| CN105569603A (en) * | 2014-10-14 | 2016-05-11 | 中国石油天然气股份有限公司 | Sealing device for high-temperature well completion |
| CN107869313A (en) * | 2016-09-26 | 2018-04-03 | 中国石油化工股份有限公司 | A kind of hollow rod elevated-temperature seal attachment means and connection method |
| CN114382455A (en) * | 2022-01-12 | 2022-04-22 | 北京科源博慧技术发展有限公司 | Shale gas horizontal well repeated fracturing method |
| CN114382455B (en) * | 2022-01-12 | 2023-10-03 | 北京科源博慧技术发展有限公司 | Shale gas horizontal well repeated fracturing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20170210 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |