CN202937206U - Device for replacing valve under pressure for water injection well - Google Patents
Device for replacing valve under pressure for water injection well Download PDFInfo
- Publication number
- CN202937206U CN202937206U CN 201220372195 CN201220372195U CN202937206U CN 202937206 U CN202937206 U CN 202937206U CN 201220372195 CN201220372195 CN 201220372195 CN 201220372195 U CN201220372195 U CN 201220372195U CN 202937206 U CN202937206 U CN 202937206U
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- CN
- China
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- fluid cylinder
- valve
- mandrel
- blanking plug
- water injection
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- 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
A device for replacing a valve under pressure for a water injection well is composed of a hydraulic cylinder, a spraying resisting pipe and a packer. One end of the hydraulic cylinder is connected with the rear portion of the spraying resisting pipe, and the other end of the hydraulic cylinder is connected with a manual hydraulic pump. One end of the spraying resisting pipe is connected with a valve requiring replacing, and the other end of the spraying resisting pipe is connected with the hydraulic cylinder. The packer is arranged in the spraying resisting pipe, the hydraulic cylinder provides motive power for boosting of the packer, base seal and deblocking of the packer are finished, and feeding and withdrawing of the packer in the pipeline are finished. The spraying resisting pipe has a sealing effect after a valve of a well mouth is opened. The packer is fed to the front end of the valve requiring replacing of the well mouth, slips and a pipe wall of the well mouth are clamped by means of outer force, and sealing rubber is expanded to achieve pressure isolation between underground and the valve. The valve of the well mouth of the water injection well is replaced without discharging pressure or diffusing pressure so that a problem that high pressure damages the valve during valve replacing is solved, and a water injection effect is obtained. A water injection valve of the well is only required to be closed when construction starts and opened after replacing is finished.
Description
Technical field
The present invention relates to a kind of oil field with water injection well replace with pressure valving, belong to the oil field and change the technical field of accessory aspect with the flushing operation.
Background technology
The problems such as leakage at present, the water injection well in oil fields well head exists in the long-term production use procedure, rust is dead, switch is difficult.Had a strong impact on the smooth enforcement of the measures such as water injection well production management, well-flushing, test.If adopt the common mode that bleeds off pressure to change valve, the time that not only bleeds off pressure is long, change that difficulty is large, operational hazards, easily cause that the stratum is counter tells, but also affects the flood effectiveness of water injection well.
Summary of the invention
Deficiency for the problems referred to above exist the purpose of this invention is to provide a kind of water injection well replace with pressure valving.Technical scheme of the present invention is as follows: a kind of water injection well replace with pressure valving, formed by fluid cylinder, blooie pipe (16), blanking plug three parts, and fluid cylinder one end is connected to the rear portion of blooie pipe (16), and the other end is connected with hydraulic hand-pump.Blooie pipe (16) one ends are connected the other end with the valve that needs to change and connect fluid cylinder.
Blanking plug is arranged in blooie pipe (16), and fluid cylinder provides power for the propelling of blanking plug, completes the setting and deblocking of blanking plug, and completes blanking plug sending into and taking out in pipeline.
After opening head valve, blooie pipe (16) plays sealing function.Blanking plug is sent into the valve front end that well head will be changed under the effect of fluid cylinder, rely on External Force Acting to make slips (10) and well head tube wall stuck, and distending stripper rubber (11) is realized the pressure isolation between down-hole and valve.
Blanking plug is arranged in lubricator (15), the front plug (9) of blanking plug is threaded with mandrel (14), slips (10) is embedded on front plug (9), stripper rubber (11) is inserted on hollow push rod (13), rear plug (12) is arranged on the rear portion of stripper rubber (11) and is connected with hollow push rod (13), mandrel (14) is arranged in hollow push rod (13) and is fixing by slips (10), is provided with four directions (8) at the afterbody of mandrel (14).
Blooie pipe (16) is welded on lubricator (15), and flange (17) is threaded with lubricator (15), and two sealing ring B (18) embed and are arranged in lubricator (15).
Fluid cylinder mandrel (1) is arranged in fluid cylinder overcoat (4), afterbody at fluid cylinder mandrel (1) is equipped with two sealing ring C (2) side by side, front end at fluid cylinder mandrel (1) is equipped with fluid cylinder mandrel flange (3), and three sealing ring A (5) are installed on the inwall of fluid cylinder overcoat (4); Be provided with hydraulic oil import (6) at fluid cylinder overcoat (4) afterbody, the front end of fluid cylinder overcoat (4) is provided with fluid cylinder overcoat flange (7), and fluid cylinder overcoat flange (7) is threaded with fluid cylinder overcoat (4).
Hydraulic means with special use is advanced to the precalculated position with special-purpose blanking plug, appointment will be changed valve bottom or front portion, make blanking plug setting by External Force Acting, borehole pressure is shut in plugging device valve bottom or front portion, make that pressure is 0 before and after valve flashboard, thereby reach the purpose that normal pressure is changed valve.
The present invention has following characteristics:
1. realize not bleeding off pressure, diffusion changes the wellhead of water injection well valve, namely solved high pressure corrupted replacing valve problem, guaranteed again flood effectiveness.
2. simple, convenient quick.When beginning construction only need be closed the Water filling valve of this well, changes to open Water filling valve after complete again and get final product.
3. safety and environmental protection.Effectively avoid losing and environment pollution because of the stratum energy that pressure release before the replacing valve causes, flood effectiveness is had no effect.
4. withstand voltage height, practical.Setting instrument sealing effectiveness is good.
Description of drawings
Fig. 1 is the sectional view of blanking plug of the present invention and lubricator;
Fig. 2 is fluid cylinder sectional view of the present invention;
Fig. 3 is overall structure sectional view of the present invention.
.1 fluid cylinder mandrel, 2 sealing ring C, 3 fluid cylinder mandrel flanges, 4 fluid cylinder overcoats, 5 sealing ring A, 6 hydraulic oil imports, 7 fluid cylinder overcoat flanges, 8 four directions, 9 front plugs, 10 slips, 11 stripper rubbers, 12 rear plugs, 13 hollow push rods, 14 mandrels, 15 lubricators, 16 blooie pipes, 17 flanges, 18 sealing ring B in figure.
The specific embodiment
As shown in Figure 3, the present invention is comprised of fluid cylinder, blooie pipe 16, blanking plug three parts.Fluid cylinder one end is connected to the rear portion of blooie pipe 16, and the other end is connected with hydraulic hand-pump.Blooie pipe 16 1 ends are connected the other end with the valve that needs to change and connect fluid cylinder.Blanking plug is arranged in blooie pipe 16.Fluid cylinder provides power for the propelling of blanking plug, completes the setting and deblocking of blanking plug, and completes blanking plug sending into and taking out in pipeline.Blooie pipe 16 plays sealing function after opening head valve.Blanking plug is sent into the valve front end that well head will be changed under the effect of fluid cylinder, rely on External Force Acting to make slips 10 and well head tube wall stuck, and distending stripper rubber 11 is realized the pressure isolation between down-hole and valve.
As shown in Figure 1, blanking plug is arranged in lubricator 15, the front plug 9 of blanking plug is threaded with mandrel 14, slips 10 is embedded on front plug 9, stripper rubber 11 is inserted on hollow push rod 13, rear plug 12 is arranged on the rear portion of stripper rubber 11 and is connected with hollow push rod 13, and mandrel 14 is arranged in hollow push rod 13 and is fixing by slips 10, is provided with four directions 8 at the afterbody of mandrel 14.
As shown in Figure 2, fluid cylinder mandrel 1 is arranged in fluid cylinder overcoat 4, at the afterbody of fluid cylinder mandrel 1, two sealing ring C2 is installed side by side, at the front end of fluid cylinder mandrel 1, fluid cylinder mandrel flange 3 is installed, and three sealing ring A5 are installed on the inwall of fluid cylinder overcoat 4.Be provided with hydraulic oil import 6 at fluid cylinder overcoat 4 afterbodys, the front end of fluid cylinder overcoat 4 is provided with fluid cylinder overcoat flange 7, and fluid cylinder overcoat flange 7 is threaded with fluid cylinder overcoat 4.
Claims (4)
1. a water injection well replace with pressure valving, be comprised of fluid cylinder, blooie pipe (16), blanking plug three parts, it is characterized in that, fluid cylinder one end is connected to the rear portion of blooie pipe (16), and the other end is connected with hydraulic hand-pump; Blooie pipe (16) one ends are connected the other end with the valve that needs to change and connect fluid cylinder; Blanking plug is arranged in blooie pipe (16), and fluid cylinder provides power for the propelling of blanking plug, completes the setting and deblocking of blanking plug, and completes blanking plug sending into and taking out in pipeline; After opening head valve, blooie pipe (16) plays sealing function; Blanking plug is sent into the valve front end that well head will be changed under the effect of fluid cylinder, rely on External Force Acting to make slips (10) and well head tube wall stuck, and distending stripper rubber (11) is realized the pressure isolation between down-hole and valve.
2. device according to claim 1, it is characterized in that, blanking plug is arranged in lubricator (15), the front plug (9) of blanking plug is threaded with mandrel (14), slips (10) is embedded on front plug (9), stripper rubber (11) is inserted on hollow push rod (13), rear plug (12) is arranged on the rear portion of stripper rubber (11) and is connected with hollow push rod (13), mandrel (14) is arranged in hollow push rod (13) and by slips (10) and fixes, afterbody at mandrel (14) is provided with four directions (8).
3. device according to claim 1, it is characterized in that, blooie pipe (16) is welded on lubricator (15), and flange (17) is threaded with lubricator (15), and two sealing ring B (18) embed and are arranged in lubricator (15).
4. device according to claim 1, it is characterized in that, fluid cylinder mandrel (1) is arranged in fluid cylinder overcoat (4), afterbody at fluid cylinder mandrel (1) is equipped with two sealing ring C (2) side by side, front end at fluid cylinder mandrel (1) is equipped with fluid cylinder mandrel flange (3), and three sealing ring A (5) are installed on the inwall of fluid cylinder overcoat (4); Be provided with hydraulic oil import (6) at fluid cylinder overcoat (4) afterbody, the front end of fluid cylinder overcoat (4) is provided with fluid cylinder overcoat flange (7), and fluid cylinder overcoat flange (7) is threaded with fluid cylinder overcoat (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220372195 CN202937206U (en) | 2012-07-31 | 2012-07-31 | Device for replacing valve under pressure for water injection well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220372195 CN202937206U (en) | 2012-07-31 | 2012-07-31 | Device for replacing valve under pressure for water injection well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202937206U true CN202937206U (en) | 2013-05-15 |
Family
ID=48321450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220372195 Expired - Fee Related CN202937206U (en) | 2012-07-31 | 2012-07-31 | Device for replacing valve under pressure for water injection well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202937206U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758593A (en) * | 2012-07-31 | 2012-10-31 | 任丘市华北石油通运石油机械有限公司 | Valve replacing device for water injection well under condition of pressure |
-
2012
- 2012-07-31 CN CN 201220372195 patent/CN202937206U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758593A (en) * | 2012-07-31 | 2012-10-31 | 任丘市华北石油通运石油机械有限公司 | Valve replacing device for water injection well under condition of pressure |
| CN102758593B (en) * | 2012-07-31 | 2014-11-26 | 任丘市华北石油通运石油机械有限公司 | Valve replacing device for water injection well under condition of pressure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Lu Yong Inventor after: Shi Pengfei Inventor after: Zhou Kai Inventor after: Jiang Yongkui Inventor after: Wang Changshun Inventor after: Guo Yu Inventor before: Lu Yong Inventor before: Shi Pengfei Inventor before: Zhou Kai Inventor before: Guo Yu |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LU YONG SHI PENGFEI ZHOU KAI GUO YU TO: LU YONG SHI PENGFEI ZHOU KAI JIANGYONGKUI WANG CHANGSHUN GUO YU |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130515 Termination date: 20150731 |
|
| EXPY | Termination of patent right or utility model |