CN201228545Y - Compensating mechanism for connection of thermal wellhead and ground pipeline - Google Patents
Compensating mechanism for connection of thermal wellhead and ground pipeline Download PDFInfo
- Publication number
- CN201228545Y CN201228545Y CNU2008201085454U CN200820108545U CN201228545Y CN 201228545 Y CN201228545 Y CN 201228545Y CN U2008201085454 U CNU2008201085454 U CN U2008201085454U CN 200820108545 U CN200820108545 U CN 200820108545U CN 201228545 Y CN201228545 Y CN 201228545Y
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- Prior art keywords
- sleeve
- tube
- sealing ring
- pipe
- sleeve seat
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Abstract
A compensating device connected with a hot extraction well and a surface pipeline comprises tube joints on two ends, wherein one tube joint is fixedly connected with one end of an expansive tube, the other tube joint is fixedly connected with one end of a sleeve, and the other end of the sleeve is fixedly connected with one end of a sleeve seat; one end of the expansive tube passes through the sleeve seat and then is inserted in the sleeve, and a lug boss with a variable diameter is installed at the end of the sleeve connected with the sleeve seat; a sealing ring, a disc spring ring and a locking bolt ring are installed between the expansive tube and the sleeve seat, one end of the sealing ring touches the lug boss, and the locking bolt ring is fixedly connected with one end of the sleeve seat through a screw thread and presses tightly on the sealing ring and the disc spring ring. When displacement happens on the pipeline connected with two ends, the tightening pressure of the locking bolt ring can be overcome by the axial displacement between the expansive tube and the sleeve seat due to the good sealability between the expansive tube and the sleeve seat, compensating adjustment is carried out by automatic expansion; at the same time, the backstop cap on the end of the expansive tube can limit the separation of the expansive tube and the sleeve seat. The compensating device has the advantages that the structure is simple, the sealing components is conveniently replaced and repaired and the sealing performance is good. Therefore, the device has long service life.
Description
Technical field
The utility model relates to the compensation arrangement of a kind of well mouth of oil well pipeline and surface duct connection, is specially adapted to the thermal recovery oil well.
Background technology
In oil exploitation, the particularly exploitation of viscous crude utilizes movable pipeline that high temperature and high pressure gas in the boiler is caused production wellhead, so that import in oil well, its high temperature and high pressure gas temperature is up to 370 ℃, and pressure reaches 21MPa, makes viscous crude thinning, just is convenient to extract crude oil.At present, when when oil well injects high temperature and high pressure gas, can produce two kinds of situations: one, the ground steam injection pipeline can produce elongation because of the heat expansion reason, causes the whole piece pipeline bending of laying on ground, breaks away from the original route of laying, and produces unsafe factor.Eliminate the district so heat expansion will be set every about 50 meters, basic way is to connect into several fonts every 50 meters by several elbows, connects loaded down with trivial details and floor space is bigger; Two, the oil well inner oil tube also can swollen account extend because of being heated, cause that the ground production wellhead upwards, make the link of well head and surface line upwards to promote because of expanding, easy like this dislocation, distortion and the breach that causes pipeline junction various unsafe factors such as fracture, influence is produced, even the security incident of personal injury takes place.
The utility model content
The technical problems to be solved in the utility model provides a kind of simple in structure, adjusts compensate for heat expansion automatically and produces the thermal production well mouth of displacement and the compensation arrangement that surface line connects.
The utility model thermal production well mouth and surface line connect compensation arrangement, comprise the union at two ends, and wherein union is fixedlyed connected with tension Guan Yiduan, and another union is fixedlyed connected with sleeve pipe one end, and the sleeve pipe other end is fixedlyed connected with casing seat one end; The tension pipe other end passes casing seat and inserts in the sleeve pipe, link with sleeve pipe in casing seat is provided with the reducing boss, sealing ring, disk spring circle and fastening spiro loop are housed between tension pipe and casing seat, sealing ring one end contacts with boss, fastening spiro loop and casing seat threaded one end are connected and fixed, and compress sealing ring and disk spring circle.
The utility model thermal production well mouth and surface line connect compensation arrangement, wherein at the tension pipe other end retaining cap are housed.
The utility model thermal production well mouth and surface line connect compensation arrangement, and wherein tension pipe and sleeve pipe are straight tube and right-angle elbow pipe.
The utility model thermal production well mouth and surface line connect compensation arrangement, wherein are added with packing ring between disk spring circle and sealing ring; And the disk spring circle is several.
The utility model thermal production well mouth and surface line connect compensation arrangement, wherein sealing ring several for being made by carbon fibre material.
The utility model thermal production well mouth and surface line connect compensation arrangement and adopt two seal of tube docking structures, when the pipeline that connects when two ends is subjected to displacement, though good seal performance between tension pipe and the casing seat, tension pipe and sleeve pipe overcome the fastening pressure of fastening spiro loop, produce axial displacement, stretching automatically compensates adjusting; Simultaneously, the tension tube end that is positioned at sleeve pipe is equipped with the retaining cap, and the reducing boss in the casing seat can limit both disengagings.It is simple in structure, and seal member is convenient to change and is repaired good seal performance, thereby long service life.
Description of drawings
Fig. 1 is the utility model thermal production well mouth and surface line connection compensation arrangement one example structure generalized section (tension pipe and sleeve pipe are straight tube);
Fig. 2 is the utility model thermal production well mouth and surface line connection another example structure generalized section of compensation arrangement (tension pipe and sleeve pipe are right-angle elbow pipe).
The specific embodiment
By Fig. 1, Fig. 2 as seen, the utility model thermal production well mouth and surface line connect the union 1,10 that compensation arrangement comprises two ends, wherein union 10 is fixedlyed connected with tension pipe 9 one ends, and another union 1 is fixedlyed connected with sleeve pipe 2 one ends, and sleeve pipe 2 other ends are fixedlyed connected with casing seat 4 one ends; Tension pipe 9 other ends pass casing seat 4 and insert in the sleeve pipe 2, link with sleeve pipe 2 in casing seat 4 is provided with reducing boss 11, sealing ring 5, packing ring 6, disk spring circle 7 and fastening spiro loop 8 are housed between tension pipe 9 and casing seat 4, one end of a plurality of sealing rings 5 contacts with boss 11, fastening spiro loop 8 is connected and fixed with casing seat 4 threaded one ends, and compress sealing ring 5 and disk spring circle 7, and make sealing ring 5 produce radial displacement, realize sealing function.Retaining cap 3 is equipped with in tension pipe 9 ends in sleeve pipe 2, and the internal diameter of the reducing boss 11 in the casing seat 4 is slightly less than the external diameter of retaining cap 3, can limit both disengagings.
During use, when tension pipe 9 and sleeve pipe 2 are right-angle elbow pipe, as shown in Figure 2; The compensation that present embodiment can be used for thermal production well mouth connects, and union 1 is connected with carrier pipe with well mouth of oil well respectively with 10, sees Fig. 1.When producing axial displacement between tension pipe 9 and the sleeve pipe 2, can overcome the fastening pressure of fastening spiro loop 8, stretching automatically compensates adjusting.When tension pipe 9 and sleeve pipe 2 are straight tube, see shown in Figure 1; The compensation that present embodiment can be used for steam injection pipeline connects, union 1 is connected with an end of two steam injection pipelines respectively with 10, make that tension pipe 9 and sleeve pipe 2 is flexible automatically to compensate adjusting, connect a compensation arrangement at a certain distance after, realize the compensating action of whole piece ground steam injection pipeline.Union 1 and 10 can be multiple structures such as clip, internal and external screw thread, is convenient to connect.
Claims (5)
1, a kind of thermal production well mouth and surface line connect compensation arrangement, the union (1,10) that comprises two ends, it is characterized in that described union (10) fixedlys connected with tension pipe (9) one ends, described another union (1) is fixedlyed connected with sleeve pipe (2) one ends, and described sleeve pipe (2) other end is fixedlyed connected with casing seat (4) one ends; Described tension pipe (9) other end passes described casing seat (4) and inserts in the described sleeve pipe (2), link with described sleeve pipe (2) in described casing seat (4) is provided with reducing boss (11), sealing ring (5), disk spring circle (7) and fastening spiro loop (8) are housed between described tension pipe (9) and described casing seat (4), described sealing ring (5) one ends contact with described boss (11), described fastening spiro loop (8) is connected and fixed with described casing seat (4) threaded one end, and compresses described sealing ring (5) and described disk spring circle (7).
2, thermal production well mouth according to claim 1 and surface line connect compensation arrangement, it is characterized in that at described tension pipe (9) other end retaining cap (3) being housed.
3, thermal production well mouth according to claim 1 and 2 and surface line connect compensation arrangement, it is characterized in that described tension pipe (9) and described sleeve pipe (2) are straight tube or right-angle elbow pipe.
4, thermal production well mouth according to claim 3 and surface line connect compensation arrangement, it is characterized in that being added with packing ring (6) between described disk spring circle (7) and sealing ring (5); And described disk spring circle (7) is several.
5, thermal production well mouth according to claim 4 and surface line connect compensation arrangement, it is characterized in that described sealing ring (5) several for being made by carbon fibre material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201085454U CN201228545Y (en) | 2008-06-16 | 2008-06-16 | Compensating mechanism for connection of thermal wellhead and ground pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201085454U CN201228545Y (en) | 2008-06-16 | 2008-06-16 | Compensating mechanism for connection of thermal wellhead and ground pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201228545Y true CN201228545Y (en) | 2009-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201085454U Expired - Fee Related CN201228545Y (en) | 2008-06-16 | 2008-06-16 | Compensating mechanism for connection of thermal wellhead and ground pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201228545Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005749A (en) * | 2014-05-15 | 2014-08-27 | 中国海洋石油总公司 | Offshore thickened oil thermal recovery wellhead lifting monitoring device |
| CN104632162A (en) * | 2013-11-11 | 2015-05-20 | 盐城市华谊石油机械有限公司 | Thermal expansion compensator |
| CN109469464A (en) * | 2018-10-29 | 2019-03-15 | 中国石油大学(华东) | A kind of carbon dioxide injection device of carbon dioxide drive |
| CN109488244A (en) * | 2018-11-02 | 2019-03-19 | 河北通运石油机械有限公司 | A kind of anti-channeling multifunctional compensating thermal production well mouth |
| CN110056724A (en) * | 2019-05-27 | 2019-07-26 | 国家电网有限公司 | The locking docking pipe joint arrangement of shock-absorbing |
| CN114135263A (en) * | 2021-12-22 | 2022-03-04 | 南通永大管业股份有限公司 | Casing sealing connection device for thermal production well |
-
2008
- 2008-06-16 CN CNU2008201085454U patent/CN201228545Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632162A (en) * | 2013-11-11 | 2015-05-20 | 盐城市华谊石油机械有限公司 | Thermal expansion compensator |
| CN104005749A (en) * | 2014-05-15 | 2014-08-27 | 中国海洋石油总公司 | Offshore thickened oil thermal recovery wellhead lifting monitoring device |
| CN109469464A (en) * | 2018-10-29 | 2019-03-15 | 中国石油大学(华东) | A kind of carbon dioxide injection device of carbon dioxide drive |
| CN109469464B (en) * | 2018-10-29 | 2020-11-06 | 中国石油大学(华东) | Carbon dioxide injection device for carbon dioxide flooding |
| CN109488244A (en) * | 2018-11-02 | 2019-03-19 | 河北通运石油机械有限公司 | A kind of anti-channeling multifunctional compensating thermal production well mouth |
| CN110056724A (en) * | 2019-05-27 | 2019-07-26 | 国家电网有限公司 | The locking docking pipe joint arrangement of shock-absorbing |
| CN110056724B (en) * | 2019-05-27 | 2024-01-02 | 国家电网有限公司 | Shock-absorbing and anti-loose butt joint pipe joint device |
| CN114135263A (en) * | 2021-12-22 | 2022-03-04 | 南通永大管业股份有限公司 | Casing sealing connection device for thermal production well |
| CN114135263B (en) * | 2021-12-22 | 2023-08-04 | 南通永大管业股份有限公司 | Casing sealing connection device for thermal production well |
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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: 20090429 Termination date: 20110616 |