CN201347724Y - Oil well casing joint sealing gland - Google Patents
Oil well casing joint sealing gland Download PDFInfo
- Publication number
- CN201347724Y CN201347724Y CNU200820103994XU CN200820103994U CN201347724Y CN 201347724 Y CN201347724 Y CN 201347724Y CN U200820103994X U CNU200820103994X U CN U200820103994XU CN 200820103994 U CN200820103994 U CN 200820103994U CN 201347724 Y CN201347724 Y CN 201347724Y
- Authority
- CN
- China
- Prior art keywords
- gland
- oil well
- sealant injecting
- well casing
- casing joint
- 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 relates to an oil well casing joint sealing gland, and belongs to the technical field of oil well head casing sealing. The utility model solves the sealing problem of oil well casing joint glands, and comprises a body, slip bowls, positioning pins, a gland, sealing rings, an upper joint connected with an oil-layer casing, and bypass joints, wherein at least two sealant injecting holes are drilled at the upper one third of the gland, and the sealant injecting holes are radially and oppositely arranged; the hole is small inside and large outside, and the large hole is provided with screw threads; and the sealant injecting holes are connected with a sealant injecting switch. The utility model has the characteristics of long service life, simple structure, convenient installation and maintenance, reliable performance and low cost, reduces or eliminates the casing overflow accidents, and effectively saves and reduces the traditional construction time and the operating cost and the like.
Description
One, technical field
The utility model belongs to well mouth of oil well bobbin seal technical field, particularly relates to a kind of oil-field thick-oil thermal production well well head casing joint gland.
Two, background technology
Continuous development along with petroleum industry, the expansion of oil field operation area, the progressively increase of oil well quantity, updating of oil production technology, inject operation process to the underground HTHP hot gas that carries out for a long time at the oil-field thick-oil block, be subjected to the influence of thermal stretching in order to reduce sleeve pipe to oil producing operation, in thick oil thermal extraction completion process, adopted the prestressing force well-completing process, promptly in the middle of production string and outer layer sleeve, poured into a mould cementing concrete, yet cementing concrete is aging gradually under the HTHP long term, make high temperature vapour, oil, overflow the cement joint crazing mouth that water has worn out between production string and outer layer sleeve, because it is improper to install and keep in repair, high-temperature steam, oil, excessive making on the production string to casing joint waterborne scurried, steam, oil, water causes production wellhead to damage from excessive between sleeve pipe top connection and the gland, accident such as environment pollution and stopping production.
Three, summary of the invention
The purpose of this utility model provides a kind of oil well casing joint sealing gland, solved the problem of oil well casing joint gland seal, it comprises body, slip spider, alignment pin, gland, sealing ring reaches and the joining top connection of production string, by-pass connection, slips adopts the built-in design of suspension type, the upper end is equipped with guide peg, utilize the alignment pin suspension on the guide peg to be positioned in the slip spider, gland utilizes screw thread and body to link, and realize production string is subjected to the control of thermal stretching by the step that compresses top connection, the slip spider design has axial locking mechanism locking plate and spring, realize the axial locking of slip spider by the chamber body back stop slot, at least dig two sealant injecting holes at 1/3 place, gland top, sealant injecting aperture is to being oppositely arranged, pass is inner small and outside big, macropore is threaded, and join with sealant injecting switch, sealant injecting switch comprises Switch main body and adjusting rod, and with adjusting rod by being threaded, have radially circular hole at the adjusting rod middle part, the utlity model has long service life, simple in structure, installation and maintenance are convenient, dependable performance, with low cost, reduce or stop the excessive accident of sleeve pipe, effectively save and reduced characteristics such as traditional engineering time and operating cost.
Four, description of drawings
Fig. 1 is the utility model oil well casing joint sealing gland structure schematic diagram;
Fig. 2 is a sealant injecting construction of switch schematic diagram.
Five, the specific embodiment
Below in conjunction with Fig. 1 and Fig. 2 the utility model is described further, it comprises body 13, slip spider 7, locking mechanism locking plate 9, spring 10, slips 8, alignment pin 2, guide peg 3, gland 6, sealing ring 4,5, Yx sealing ring 11 reaches and production string 14 joining top connections 1, gland 1, parts such as by-pass connection 12, slips 8 adopts the built-in design of suspension type, the upper end is equipped with guide peg 3, utilize alignment pin 2 suspensions on the guide peg 3 to be positioned in the slip spider 7, gland 6 utilizes screw thread and body 13 to link, and realize production string 14 is subjected to the control of thermal stretching by the step that compresses top connection 1, slip spider 8 designs have axial locking mechanism locking plate 9 and spring 10, realize the axial locking of slip spider 8 by body 13 inner chamber back stop slots, two sealant injecting holes 15 are dug at 1/3 place at least on gland 1 top, sealant injecting hole 15 radially is oppositely arranged, pass is inner small and outside big, macropore is threaded, and join with sealant injecting switch 16, sealant injecting switch 16 comprises Switch main body and adjusting rod, and with adjusting rod by being threaded, have radially circular hole at the adjusting rod middle part, by filing provision sealant is injected gland 6 inner spaces through sealant injecting switch 16 and sealant injecting hole 15, prevent the device interior corrosiveness thereby play, stop to run, emit, the generation of phenomenons such as leakage.
Claims (3)
1, oil well casing joint sealing gland, comprise body, slip spider, alignment pin, gland, sealing ring reaches and the joining top connection of production string, by-pass connection, slips adopts the built-in design of suspension type, the upper end is equipped with guide peg, utilize the alignment pin suspension on the guide peg to be positioned in the slip spider, gland utilizes screw thread and body to link, and realize production string is subjected to the control of thermal stretching by the step that compresses top connection, the slip spider design has axial locking mechanism locking plate and spring, realize the axial locking of slip spider by the chamber body back stop slot, it is characterized in that digging at least two sealant injecting holes at 1/3 place, gland top.
2, oil well casing joint sealing gland according to claim 1 is characterized in that described sealant injecting aperture to being oppositely arranged, and pass is inner small and outside big, and macropore is threaded, and joins with sealant injecting switch.
3, oil well casing joint sealing gland according to claim 2 is characterized in that described sealant injecting switch comprises Switch main body and adjusting rod, and with adjusting rod by being threaded, have radially circular hole at the adjusting rod middle part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820103994XU CN201347724Y (en) | 2008-11-24 | 2008-11-24 | Oil well casing joint sealing gland |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820103994XU CN201347724Y (en) | 2008-11-24 | 2008-11-24 | Oil well casing joint sealing gland |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201347724Y true CN201347724Y (en) | 2009-11-18 |
Family
ID=41367196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820103994XU Expired - Fee Related CN201347724Y (en) | 2008-11-24 | 2008-11-24 | Oil well casing joint sealing gland |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201347724Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108071357A (en) * | 2017-12-12 | 2018-05-25 | 中国海洋石油集团有限公司 | A kind of offshore drilling riser pipe lifting device |
| CN108843253A (en) * | 2018-08-01 | 2018-11-20 | 西南石油大学 | A kind of compound lifting pumping unit oil pipe in underground and oil storing tube jointing |
-
2008
- 2008-11-24 CN CNU200820103994XU patent/CN201347724Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108071357A (en) * | 2017-12-12 | 2018-05-25 | 中国海洋石油集团有限公司 | A kind of offshore drilling riser pipe lifting device |
| CN108071357B (en) * | 2017-12-12 | 2019-04-26 | 中国海洋石油集团有限公司 | A kind of offshore drilling riser pipe lifting device |
| CN108843253A (en) * | 2018-08-01 | 2018-11-20 | 西南石油大学 | A kind of compound lifting pumping unit oil pipe in underground and oil storing tube jointing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: QARAMAY HONGFENG TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: ZHANG BAODE Effective date: 20130312 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 830002 URUMQI, XINJIANG UYGUR AUTONOMOUS REGION TO: 834000 KARAMAY, XINJIANG UYGUR AUTONOMOUS REGION |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130312 Address after: 834000, the Xinjiang Uygur Autonomous Region Karamay Southwest Industrial Park, private science and Technology Park, B-4 District, 6-3 factory building Patentee after: Karamay Hongfeng Technology Co., Ltd. Address before: 830002 1, unit 501, 18, East 198, middle ring road, the Xinjiang Uygur Autonomous Region, Urumqi Patentee before: Zhang Baode |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091118 Termination date: 20141124 |
|
| EXPY | Termination of patent right or utility model |