CN2551765Y - Pressure operator for water injection well - Google Patents
Pressure operator for water injection well Download PDFInfo
- Publication number
- CN2551765Y CN2551765Y CN 02239958 CN02239958U CN2551765Y CN 2551765 Y CN2551765 Y CN 2551765Y CN 02239958 CN02239958 CN 02239958 CN 02239958 U CN02239958 U CN 02239958U CN 2551765 Y CN2551765 Y CN 2551765Y
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- CN
- China
- Prior art keywords
- water injection
- injection well
- well
- blowout preventer
- utility
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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.)
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Abstract
The utility model relates to an under-pressure operation device for a water injection well, particularly an operation device of oil-extracting engineering, which is an operation device for t he water injection well in oilfield. The utility model has the advantages of simple structure and good rigidity and stability. The operation construction can be safely carried out under the condition that the water injection well has higher pressure, and the work efficiency is improved. The utility model is mainly composed of a hydraulic cylinder arranged between an upper cross beam and a lower cross beam, and is characterized in that movable slips are directly arranged on the cross beams. A fixing slip, a well sealer and a blowout-preventing device are orderly connected together and arranged on a wellhead four-way device. Adjusting rods are arranged on cylinder barrels, and a strengthening rod is connected between the cylinder barrels. The adopted annular well sealer is composed of an upper shell body and a lower shell body, and a rubber core and a rubber bag are filled in the shell bodies. The device is suitable for the under-pressure operation engineering of the water injection well.
Description
Technical field
The utility model relates to a kind of petroleum production engineering apparatus for work, is a kind of water injection well in oil fields apparatus for work.
Background technology
When the oil field enters the later stage when recovering the oil, often the method that improves formation pressure by seperated layer water injection is recovered the oil, to improve oil well output.At this time if water injection well will carry out job execution, because oil reservoir has certain pressure, formation water can gush out from well head during construction, and this oil-polluted water pollutes the environment, and also can cause very big difficulty to operation, even oil pipe is ejected from well, causes the accident.In order to address this problem, often adopt the method for kill-job earlier, make well head pressure reduce to 0, and then carry out job execution.But this method equipment needed thereby is many, and the cost height also can pollute the stratum.The someone has designed a kind of " snubbing serving device " now, mainly by preventer up and down, last lower slips, lower and upper cross-member, well liquid sealing cylinder and hoist cylinder are formed, well liquid sealing cylinder and hoist cylinder are installed between the lower and upper cross-member, preventer and upper slips are installed on the top rail, lower transverse beam is by blowout preventer set and lower slips are fixedly mounted on the well head down, how long the well liquid sealing cylinder of this snubbing serving device itself just has 5 meters, it is higher to add the installation position, front and back are not supported, the rigidity of device and stability are very poor during operation, add the last top power of borehole pressure, make operation process very dangerous oil pipe.
The utility model content
The purpose of this utility model is a kind of relatively simple for structure, rigidity of design and stable reasonable water injection well Operating Pressure device, can have under the elevated pressures situation at water injection well, carries out job execution safely, improves operating efficiency.
Technical solution of the present utility model is to realize like this, a kind of water injection well Operating Pressure device, constitute by being installed in hydraulic cylinder between top rail, the lower transverse beam and movable slips, stationary slip, blowout preventer, preventer etc., its special character is, (1) movable slips is directly installed on the top rail, stationary slip, blowout preventer, preventer link together according to this, are installed on the well head four-way.(2) by bearing pin adjusting rod is installed on the cylinder barrel of hydraulic cylinder, linking between the cylinder barrel of hydraulic cylinder has bracing piece.
In above-mentioned technical solution, its special character is that also blowout preventer is annular blowout preventer, housing is made of by bolted on connection upper shell, lower house together, the glue core is housed in the housing, between glue core and the housing capsule is installed, high-pressure medium is housed on housing imports and exports.
The beneficial effects of the utility model are that (1) uses this water injection well Operating Pressure device, does not need kill-job and open flow, can prevent that ground and oilbearing stratum from polluting.(2) owing to have adjusting rod and bracing piece, during construction operation, the derrick in adjusting rod and the working vehicle links together, and can improve the rigidity and the stability of whole device greatly, accomplishes safety in production.(3) owing to adopt annular blowout preventer, between glue core and housing, increased capsule, be connected with high-pressure medium oil in the capsule, can reduce tubing coupling by the time resistance, can improve the life-span of packing unit and the ability of high pressure sealing.(4) the annular blowout preventer of Cai Yonging is more simple in structure than blowout preventer set, easy to maintenance.When (5) carrying out operation, when the deadweight of oil pipe can overcome pressure in the well, owing to can move between the blowout preventer glue core of oil pipe and this device, can be directly remove oil pipe, improve the production efficiency of operation greatly with the hook of working rig.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is that annular blowout preventer partly cuts open structure chart in the utility model.
The specific embodiment
Hydraulic cylinder 5 is installed together by cylinder barrel and plunger and constitutes, and the cylinder barrel lower end of 2 hydraulic cylinders 5 is installed in the two ends of lower transverse beam 11 by hinge, and lower transverse beam is fixed on the well head sleeve pipe.Adjusting rod is to be made of the two ends that a joint plus thread, a joint left-hand thread are installed in screwed pipe, the upper end of 2 adjusting rods 8 is fixedly mounted on the middle and upper part of each cylinder barrel respectively by hinge, be installed with bracing piece 7 between 2 cylinder barrels, the plunger upper end of hydraulic cylinder 5 is installed in the two ends of top rail 1 by bolt.Movable slips 2 is fixedly mounted on the below, middle part of top rail 1.Preventer 9 is selected triple ram preventer for use, be installed on the well head four-way 10 by flange, flange is passed through in preventer 9 tops, pipe nipple 6 and blowout preventer 4 link together, blowout preventer 4 is selected annular blowout preventer for use, the annular blowout preventer is by upper shell 13, lower house 19 is by bolt 17, nut 18 is attached to together, " O " shape sealing ring 16 is housed between the last lower house, glue core 14 is installed in housing, has steel loop at glue core two ends, 2 capsules 15 and " YX " sealing ring 12 are housed between glue core 14 and the housing, on upper shell 13 lower houses 19, be separately installed with high-pressure medium and import and export, and be passed into respectively in the capsule 15.
When carrying out operation, the lower end and the working vehicle of adjusting rod 8 link together, high-pressure medium import and export on the import and export of high-pressure medium on upper shell 13 lower houses 19, the hydraulic cylinder 5 are connected with hydraulic system by pipeline, high-pressure medium is fed in the capsule 15, and capsule compressing glue core 14 seals oil pipe.Oil pipe in pit shaft is less, the pressure of himself is during less than the pressure in the well, use this device to remove oil pipe, promptly block oil pipe, open the by-pass valve control of hydraulic cylinder 5 with movable slips 2, plunger rod in the hydraulic cylinder 5 is risen, promote top rail 1 and rise, by movable slips 2 oil pipe is mentioned, when plunger rod rises to extreme position, block oil pipe with stationary slip 3, movable slips 2 is unclamped, operate high pressure medium by-pass valve control, make plunger rod drop to extreme position after, block oil pipe with movable slips 2 again, unclamp stationary slip 3, operate high pressure medium by-pass valve control rises plunger, cycling so just can be taken out oil pipe in pit shaft.When playing oil pipe in well, similar to aforesaid operations, cycling repeatedly just can be lowered into oil pipe in the well, realizes the water injection well Operating Pressure.Oil pipe long enough in pit shaft, the weight of himself are during greater than the pressure in the well, and can remove oil pipe this moment with the working rig hook, can improve the efficient of work operations so greatly.
Claims (2)
1. water injection well Operating Pressure device by being installed in hydraulic cylinder (5) between top rail (1) lower transverse beam (11) and movable slips (2), stationary slip (3), blowout preventer (4), preventer formations such as (9), is characterized in that:
1. movable slips (2) is directly installed on the top rail (1), and stationary slip (3), blowout preventer (4), preventer (9) link together according to this, is installed on the well head four-way (10);
2. by bearing pin adjusting rod (8) is installed on the cylinder barrel of hydraulic cylinder (5), linking between the cylinder barrel of hydraulic cylinder (5) has bracing piece (7).
2. a kind of water injection well Operating Pressure device according to claim 1, it is characterized in that: blowout preventer (4) is annular blowout preventer, its housing is bound up by bolt (17) by upper shell (13), lower house (19) and forms, glue core (14) is housed in the housing, capsule (15) is installed between glue core (14) and the housing, high-pressure medium is housed on housing imports and exports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02239958 CN2551765Y (en) | 2002-06-14 | 2002-06-14 | Pressure operator for water injection well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02239958 CN2551765Y (en) | 2002-06-14 | 2002-06-14 | Pressure operator for water injection well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2551765Y true CN2551765Y (en) | 2003-05-21 |
Family
ID=33713196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02239958 Expired - Lifetime CN2551765Y (en) | 2002-06-14 | 2002-06-14 | Pressure operator for water injection well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2551765Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1325753C (en) * | 2005-08-02 | 2007-07-11 | 辽河石油勘探局 | Apparatus for work under pressure for oil-water well |
| CN101343985B (en) * | 2008-08-27 | 2011-07-27 | 中国石油化工股份有限公司胜利油田分公司采油工艺研究院 | Transverse beam type pipe clamping device |
| CN102839928A (en) * | 2012-10-10 | 2012-12-26 | 松原市前进石油工程机械有限公司 | Continuous up-and-down method of pipe column of oil field mine and dual-traveling slip device |
| CN103003518A (en) * | 2010-07-12 | 2013-03-27 | 韦尔泰克有限公司 | Blowout preventer and launcher system |
| CN104895521A (en) * | 2015-05-13 | 2015-09-09 | 陕西福瑞德石油科技有限公司 | Coal-bed gas well under-pressure operation device |
| CN106703736A (en) * | 2017-03-20 | 2017-05-24 | 大庆东达节能技术开发服务有限公司 | Anti-theft and pressure maintaining well sealing device for oil field |
| CN107313755A (en) * | 2017-09-03 | 2017-11-03 | 盐城市金巨石油机械制造有限公司 | A kind of injection well downhole flow regulator external seal instrument and its application method |
-
2002
- 2002-06-14 CN CN 02239958 patent/CN2551765Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1325753C (en) * | 2005-08-02 | 2007-07-11 | 辽河石油勘探局 | Apparatus for work under pressure for oil-water well |
| CN101343985B (en) * | 2008-08-27 | 2011-07-27 | 中国石油化工股份有限公司胜利油田分公司采油工艺研究院 | Transverse beam type pipe clamping device |
| CN103003518A (en) * | 2010-07-12 | 2013-03-27 | 韦尔泰克有限公司 | Blowout preventer and launcher system |
| CN102839928A (en) * | 2012-10-10 | 2012-12-26 | 松原市前进石油工程机械有限公司 | Continuous up-and-down method of pipe column of oil field mine and dual-traveling slip device |
| CN104895521A (en) * | 2015-05-13 | 2015-09-09 | 陕西福瑞德石油科技有限公司 | Coal-bed gas well under-pressure operation device |
| CN104895521B (en) * | 2015-05-13 | 2016-04-27 | 陕西福瑞德石油科技有限公司 | Coal bed gas well Operating Pressure is equipped |
| CN106703736A (en) * | 2017-03-20 | 2017-05-24 | 大庆东达节能技术开发服务有限公司 | Anti-theft and pressure maintaining well sealing device for oil field |
| CN107313755A (en) * | 2017-09-03 | 2017-11-03 | 盐城市金巨石油机械制造有限公司 | A kind of injection well downhole flow regulator external seal instrument and its application method |
| CN107313755B (en) * | 2017-09-03 | 2023-07-21 | 盐城市金巨石油机械制造有限公司 | Water distributor external sealing tool and use method thereof |
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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: 20120614 Granted publication date: 20030521 |