CN2771472Y - High-temperature snubbing steam flooding wellhead device - Google Patents
High-temperature snubbing steam flooding wellhead device Download PDFInfo
- Publication number
- CN2771472Y CN2771472Y CN 200420112572 CN200420112572U CN2771472Y CN 2771472 Y CN2771472 Y CN 2771472Y CN 200420112572 CN200420112572 CN 200420112572 CN 200420112572 U CN200420112572 U CN 200420112572U CN 2771472 Y CN2771472 Y CN 2771472Y
- Authority
- CN
- China
- Prior art keywords
- seal
- boll
- flange
- valve
- weevil hanger
- 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 - Lifetime
Links
- 238000010795 Steam Flooding Methods 0.000 title claims abstract description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 13
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 13
- 239000010439 graphite Substances 0.000 claims abstract description 13
- 239000010959 steel Substances 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 3
- 241000254175 Anthonomus grandis Species 0.000 claims description 27
- 230000007774 longterm Effects 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 8
- 230000002595 cold damage Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000035939 shock Effects 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract 2
- 229910052751 metal Inorganic materials 0.000 abstract 2
- 208000009084 Cold Injury Diseases 0.000 abstract 1
- 238000010793 Steam injection (oil industry) Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 2
- 239000012467 final product Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
Landscapes
- Lift Valve (AREA)
- Earth Drilling (AREA)
Abstract
A high temperature snubbing steam drive wellhead assembly, test valve 1, little cross 2, reducing flange 7, pressure cap 8, tubing hanger 9, graphite seal 10, blanking plug 11, purple steel ring seal 12, metal seal 13, big cross 16, clamp short connector 17, bottom flange 18, sleeve flange 19 make up, the utility model adopts flange joint to adopt each test valve both sides, the test valve adopts the wedge stop valve, adopts graphite, purple copper ring and metal seal three-level step seal between big cross and the tubing hanger, the design fit of the blanking plug that can input is designed in the tubing hanger is tight, the high temperature snubbing wellhead assembly has reliability under the long-term high temperature and high pressure condition in the steam drive exploitation process, the long-term shock-resistant sealing performance of inhaling, can guarantee to change the operation convenience such as production tree and underground technology tubular column at the same time, the effective implementation reaches and reduces the operation difficulty, avoid the cold injury of underground oil reservoir, improve the effect of steam flooding exploitation.
Description
Technical field:
The utility model relates to the downhole tool that uses on the oilfield, particularly a kind of not kill-job of high temperature steam flooding wellhead assembly.
Background technology:
The clamp connection mode of existing steam flooding head valve both sides and the Seal Design between big four and the boll-weevil hanger, can not satisfy all in the long-term steam injection process of steam flooding that vapour drives the firm of wellhead assembly under the high-temperature and high-pressure conditions, the performance requirement of impact resistance and long-term seal, the one of big four and boll-weevil hanger design simultaneously is not easy to change in the steam vent process enforcement that production tree is improved warm snubbing serving.
Technical scheme
The purpose of this utility model provides a kind of not kill-job of high temperature steam flooding wellhead assembly, under the long term high temperature condition of high voltage in the steam flooding steam injection process, have reliable long-term seal and impact resistance, simultaneously can the snubbing serving of convenient, flexible enforcement high temperature, to guarantee the positiver sealing of wellhead assembly in the long-term steam injection process of steam flooding, Validity Test and smooth, the snubbing serving of convenient enforcement high temperature.
The purpose of this utility model is to realize like this, it is by test valve (1), little four-way (2), oil pipe flutter valve (3), adpting flange (4), main gate valve (5), sealing steel loop (6), reduced flange (7), pressure cap (8), boll-weevil hanger (9), graphite seal (10), blanking plug (11), purple steel loop seal (12), metallic seal device (13), spacing ring (14), sleeve pipe flutter valve (15), big four (16), clip short circuit (17), end flange (18), casing flange (19) is formed, test valve (1), oil pipe flutter valve (3), main gate valve (5), sleeve pipe flutter valve (15) all is connected with adpting flange (4), sealing steel loop (6) is arranged in the adpting flange (4), graphite seal (10), purple steel loop seal (12), metallic seal device (13) from top to bottom is enclosed between boll-weevil hanger (9) and the big four (16) successively, pressure cap (8) is threaded with boll-weevil hanger (9), pressure cap (8) is on the upper surface of graphite seal (10), boll-weevil hanger (9) lower end is connected with spacing ring (14), metallic seal device (13) lower surface is connected with spacing ring (14), boll-weevil hanger (9) is connected with blanking plug (11), and the inner via hole of the outer end boss of boll-weevil hanger (9) and reduced flange (7) is a matched in clearance.
This utility model is respectively tested the valve both sides and is adopted flange to connect, and improves the high temperature resistant of each pipeline of wellhead assembly, withstand voltage properties; Adopt multistage steps type seal between big four and the boll-weevil hanger, the long-term seal under the realization steam driving exploitation long term high temperature condition of high voltage between big four and the oil pipe hanging ring; Different from flange and boll-weevil hanger employing split design, only need during the high temperature snubbing serving different upper flange lid through flange is taken off, get final product the installation exercise well head; Design has the blanking plug that can drop in the boll-weevil hanger, can realize the replace with pressure of production tree in the steam flooding steam injection process.
The utility model adopts flange to connect because the valve both sides are respectively tested in employing.The test valve all adopts the wedge shape stop valve.Adopt graphite, red copper ring and three grades of steps type seals of metallic seal between big four and the boll-weevil hanger.Design has the design mix of the blanking plug that can drop into tight in the boll-weevil hanger, under the long term high temperature condition of high voltage of not kill-job of high temperature wellhead assembly in the steam driving exploitation process, have reliable, long-acting shock-resistant suction sealing performance, it is convenient simultaneously can to guarantee to change operations such as production tree and down-hole process pipe string, effectively implement to reach the minimizing task difficulty, avoid the cold damage of subsurface deposit, improve the effect that vapour drives exploitation.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The utility model is described in further detail below in conjunction with accompanying drawing.
Embodiment
As shown in the figure, the utility model is by test valve 1, little four-way 2, oil pipe flutter valve 3, adpting flange 4, main gate valve 5, sealing steel loop 6, reduced flange 7, pressure cap 8, boll-weevil hanger 9, graphite seal 10, blanking plug 11, purple steel loop seal 12, metallic seal device 13, spacing ring 14, sleeve pipe flutter valve 15, big four 16, clip short circuit 17, end flange 18, casing flange 19 is formed, test valve 1, oil pipe flutter valve 3, main gate valve 5, sleeve pipe flutter valve 15 all is connected with adpting flange 4, sealing steel loop 6 is arranged in the adpting flange 4, graphite seal 10, purple steel loop seal 12, metallic seal device 13 from top to bottom is enclosed between boll-weevil hanger 9 and the big four 16 successively, pressure cap 8 is threaded with boll-weevil hanger 9, pressure cap 8 is on the upper surface of graphite seal 10, boll-weevil hanger 9 lower ends are connected with spacing ring 14, metallic seal device 13 lower surfaces are connected with spacing ring 14, boll-weevil hanger 9 is connected with blanking plug 11, and the outer end boss of boll-weevil hanger 9 and the inner via hole of reduced flange 7 are matched in clearance.
Design has the design mix of the blanking plug that can drop into tight in the boll-weevil hanger, stops up reliably, realizes the fixing and sealing of blanking plug in seating nipple by pawl spring and seal, bears the pressure reduction of blanking plug upper and lower simultaneously, guarantees that obstruction is reliable.
Claims (2)
1, a kind of not kill-job of high temperature steam flooding wellhead assembly, it is by test valve (1), little four-way (2), oil pipe flutter valve (3), adpting flange (4), main gate valve (5), sealing steel loop (6), reduced flange (7), pressure cap (8), boll-weevil hanger (9), graphite seal (10), blanking plug (11), purple steel loop seal (12), metallic seal device (13), spacing ring (14), sleeve pipe flutter valve (15), big four (16), clip short circuit (17), end flange (18), casing flange (19) is formed, it is characterized in that: test valve (1), oil pipe flutter valve (3), main gate valve (5), sleeve pipe flutter valve (15), all be connected with adpting flange (4), sealing steel loop (6) is arranged in the adpting flange (4), graphite seal (10), purple steel loop seal (12), metallic seal device (13) from top to bottom is enclosed between boll-weevil hanger (9) and the big four (16) successively, pressure cap (8) is threaded with boll-weevil hanger (9), pressure cap (8) is on the upper surface of graphite seal (10), boll-weevil hanger (9) lower end is connected with spacing ring (14), metallic seal device (13) lower surface is connected with spacing ring (14), boll-weevil hanger (9) is connected with blanking plug (11), and the inner via hole of the outer end boss of boll-weevil hanger (9) and reduced flange (7) is a matched in clearance.
2, not kill-job of high temperature steam flooding wellhead assembly according to claim 1, it is characterized in that: test valve (1) all adopts the wedge shape stop valve, adopts graphite, red copper ring and three grades of steps type seals of metallic seal between big four (16) and the boll-weevil hanger (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420112572 CN2771472Y (en) | 2004-11-17 | 2004-11-17 | High-temperature snubbing steam flooding wellhead device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420112572 CN2771472Y (en) | 2004-11-17 | 2004-11-17 | High-temperature snubbing steam flooding wellhead device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2771472Y true CN2771472Y (en) | 2006-04-12 |
Family
ID=36705260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420112572 Expired - Lifetime CN2771472Y (en) | 2004-11-17 | 2004-11-17 | High-temperature snubbing steam flooding wellhead device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2771472Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104975818A (en) * | 2015-06-30 | 2015-10-14 | 中国石油天然气股份有限公司 | Equipment and process method for pulling and dropping oil pipe |
| CN106194134A (en) * | 2015-05-07 | 2016-12-07 | 中国石油化工股份有限公司 | A kind of note adopts no killing well well head operating procedure and the equipment of integration thermal recovery technology |
| CN108266156A (en) * | 2018-04-04 | 2018-07-10 | 盐城雄威石化通用机械设备有限公司 | A kind of high temperature and pressure wellhead for production |
| CN114517655A (en) * | 2021-12-27 | 2022-05-20 | 深圳市百勤石油技术有限公司 | Economic small-wellhead gas production tree system suitable for natural gas hydrate exploitation |
-
2004
- 2004-11-17 CN CN 200420112572 patent/CN2771472Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194134A (en) * | 2015-05-07 | 2016-12-07 | 中国石油化工股份有限公司 | A kind of note adopts no killing well well head operating procedure and the equipment of integration thermal recovery technology |
| CN104975818A (en) * | 2015-06-30 | 2015-10-14 | 中国石油天然气股份有限公司 | Equipment and process method for pulling and dropping oil pipe |
| CN104975818B (en) * | 2015-06-30 | 2017-05-10 | 中国石油天然气股份有限公司 | Equipment and process method for pulling and dropping oil pipe |
| CN108266156A (en) * | 2018-04-04 | 2018-07-10 | 盐城雄威石化通用机械设备有限公司 | A kind of high temperature and pressure wellhead for production |
| CN114517655A (en) * | 2021-12-27 | 2022-05-20 | 深圳市百勤石油技术有限公司 | Economic small-wellhead gas production tree system suitable for natural gas hydrate exploitation |
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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 | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20141117 Granted publication date: 20060412 |