CN202202840U - Double-tube safety control valve - Google Patents
Double-tube safety control valve Download PDFInfo
- Publication number
- CN202202840U CN202202840U CN2011202501548U CN201120250154U CN202202840U CN 202202840 U CN202202840 U CN 202202840U CN 2011202501548 U CN2011202501548 U CN 2011202501548U CN 201120250154 U CN201120250154 U CN 201120250154U CN 202202840 U CN202202840 U CN 202202840U
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- tube body
- piston
- safety control
- sealing
- outer tube
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Abstract
The utility model provides a double-barrelled safety control valve. The method solves the problem that the existing concentric double-pipe water injection process is used for offshore water injection wells and does not meet the requirements of offshore safety control. The piston pushing device comprises an inner pipe body, an outer pipe body and a channel switching mechanism, wherein the end parts of the inner pipe body and the outer pipe body are provided with connecting mechanisms, a piston cavity and a corresponding piston are arranged between the inner pipe body and the outer pipe body, the piston cavity is provided with a hydraulic control pipeline connecting port, the inner side of the inner pipe body and the inner side of the outer pipe body are respectively provided with a piston pushing body connected with the piston, and the piston pushing bodies are respectively connected with the channel switching mechanism and provided with a resetting mechanism of the piston pushing body. The double-pipe well safety control system has the advantages of simple structure and stable and reliable performance, and is mainly used for double-pipe well safety control.
Description
Technical field
The utility model relates to a kind of valve that can implement control to the concentric double pipe waterflood path.
Background technology
At present, the general water injection technology that adopts of marine water injection well is the open-core type separate zone waterflooding technology, and the test allocating technology prolongs with the water filling of onshore oil field surveys the conditioning technology method, and the mode that adopts winch wire pulling water filling fuse to change water nozzle is allocated.This mode allocates that error is big, precision is low, and the allotment qualification rate is not high, has influenced survey furnishing power greatly.Present existing concentric double pipe water injection technology can be realized effective seperated layer water injection, the ground allotment of big pressure reduction oil reservoir, does not need to test separately allotment, can reduce workload in a large number.Therefore, transfer simple, the accurate characteristics of injection allocation from its survey, this technology relatively is suitable for field use at sea.But because also there is deficiency in the concentric double pipe water injection technology aspect security control, lack the necessary security control tool, do not meet the requirement of maritime safety control, thus this technology at present at sea the oil field also can't implement.
Summary of the invention
In order to solve the deficiency that above-mentioned concentric double pipe water injection technology exists, the utility model provides a kind of can implement control, safe and reliable two-tube safety control to the concentric double pipe internal and external channel.
A kind of two-tube Safety control valve of the utility model; Comprise interior tube body, outer tube body, channel switch mechanism; The end of described interior tube body and described outer tube body is provided with sleeve pipe bindiny mechanism; Be provided with plunger shaft and corresponding piston between described interior tube body and the described outer tube body; This plunger shaft is provided with the liquid controling pipe line connector; Described interior tube body inboard with described outer tube body inboard be respectively equipped with described plunger shaft in the piston that is connected of piston push away body, described piston push away body respectively be arranged at described interior tube body in be connected with channel switch mechanism in the formed annular space of described outer tube body with described interior tube body, and be provided with the resetting-mechanism that described piston pushes away body.The effect that sleeve pipe bindiny mechanism is set in the end of described interior tube body and described outer tube body is to realize being connected of casing safety control valve and sleeve pipe easily.The effect that plunger shaft and corresponding piston are set between described interior tube body and described outer tube body is to realize the switch control to channel switch mechanism through described plunger shaft and corresponding piston.The effect that described liquid controling pipe line connector is set in described plunger shaft is to realize docking of described plunger shaft and liquid controling pipe line easily.At described interior tube body inboard and described outer tube body inboard be provided with respectively with described plunger shaft in the piston that is connected of piston push away body, and with described piston push away body respectively be arranged at described interior tube body in the effect that is connected with channel switch mechanism in the formed annular space of described outer tube body with described interior tube body be to push away body drive channels switching mechanism through hydraulic action and described piston, piston to carry out switching manipulation.It is to assist described piston to push away body to accomplish the switch control to channel switch mechanism that the effect that described piston pushes away the resetting-mechanism of body is set.Described interior tube body, outer tube body can be monolithic entity, also can be the multi-part assembly.Described resetting-mechanism mainly is made up of detent mechanism and driver part.
The inboard piston of described interior tube body pushes away body and the inboard piston of described outer tube body and pushes away body and preferably be connected with same described piston.This structure can make described piston push away body and be synchronized with the movement, helps realizing control to channel switch mechanism, and simple in structure and stable performance.
Channel switch mechanism in described interior tube body and the formed annular space of described outer tube body preferably includes sealing upper cone and sealing lower cone, and described sealing upper cone and described sealing lower cone are provided with the sealing contact surface that cooperatively interacts.The channel switch mechanism of this structure its space that is suitable for relatively has simple in structure, the convenient advantage of making of installing.Sealing contact surface between described sealing upper cone and the described sealing lower cone is preferably the inclined-plane.More help liquid when the sealing contact surface of this structure is opened and pass through, reduced material and remained in the possibility on the sealing surface, guaranteed the sealing effectiveness after sealing contact surface closes up.
Described resetting-mechanism preferably is made up of elastic body and the detent mechanism thereof with on the described interior tube body that are arranged on the described outer tube body.The resetting-mechanism of this structure has advantage simple in structure, convenient for assembly.
The beneficial effect of the utility model: just the channel switch mechanism with in described interior tube body and the formed annular space of described outer tube body in the described interior tube body is realized controlling owing to push away body through described plunger shaft and corresponding piston, piston; Thereby the control to two passages of sleeve pipe is united two into one, so the utlity model has the advantage of simple in structure and stable and reliable working performance.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the utility model structural representation
Among the figure 1, the upper body, 2, the bridging pipe, 3, overcoat, 4, piston pushes away body, 5, piston pushes away body; 6, spring, 7, the sealing upper cone, 8, the sealing lower cone, 9, spring, 10, interior seal valve panel seat; 11, interior sealing valve plate, 12, the liquid controling pipe line connector, 13, plunger shaft, 14, piston.
The specific embodiment
A kind of two-tube Safety control valve as shown in Figure 1 comprises upper body 1, interior tube body, outer tube body, channel switch mechanism, and the end of described interior tube body and described outer tube body is provided with the spiral shell of splicing sleeve
Line; Be provided with plunger shaft 13 and corresponding piston 14 between described interior tube body and the described outer tube body; This plunger shaft 13 is provided with liquid controling pipe line connector 12; Described interior tube body inboard with described outer tube body inboard be respectively equipped with described plunger shaft 13 in the piston that is connected of piston 14 push away body 4,5; Described piston push away body 4,5 respectively be arranged at described interior tube body in be connected with channel switch mechanism in the formed annular space of described outer tube body with described interior tube body, and be provided with the resetting-mechanism that described piston pushes away body 4,5.Described interior tube body comprises bridging pipe 2, and described outer tube body comprises overcoat 3.Channel switch mechanism in described interior tube body and the formed annular space of described outer tube body comprises sealing upper cone 7 and sealing lower cone 8; Contact surface between described sealing upper cone 7 and the described sealing lower cone 8 is the inclined-plane, and described sealing upper cone 7 is an annular solid with described sealing lower cone 8.Seal valve panel seat 10 and interior sealing valve plate 11 in channel switch mechanism in the described interior tube body comprises.The resetting-mechanism that described piston pushes away body 4 is made up of spring 6 and detent mechanism thereof, and described spring 6 its detent mechanisms are positioned at the top, bottom of described sealing upper cone 7; The resetting-mechanism that described piston pushes away body 5 is made up of spring 9 and detent mechanism thereof, and described spring 9 and detent mechanism thereof are positioned at the below, top of described sealing lower cone 8.So described spring 6,9 is misplaced to locate and have the advantage that takes up room, helps mobile in annular space, the convenient design assembling of liquid that can reduce described sealing upper cone 7 and 8 pairs of described interior tube bodies of described sealing lower cone and the formed annular space of described outer tube body.
Operating principle: during operate as normal, suppress, promote described piston 14 and move down by the liquid controling pipe line that is connected with described plunger shaft 13, make described piston push away body 4 move down open described in the sealing valve plate 11, interior pipe water filling; Making described piston push away body 5 simultaneously moves down and promotes described sealing lower cone 8 and open seal channel, described annular space water filling.When emergency occurring; The liquid controling pipe line pressure release, under described spring 6 and described spring 9 acted on, described piston pushed away body 4,5 and resets; Close thereby drive described channel switch mechanism, play security control effect pipe and described annular space in described.
Claims (2)
1. two-tube Safety control valve; Comprise interior tube body, outer tube body, channel switch mechanism; The end that it is characterized in that described interior tube body and described outer tube body is provided with sleeve pipe bindiny mechanism; Be provided with plunger shaft and corresponding piston between described interior tube body and the described outer tube body; This plunger shaft is provided with the liquid controling pipe line connector; Described interior tube body inboard with described outer tube body inboard be respectively equipped with described plunger shaft in the piston that is connected of piston realization push away body, described piston push away body respectively be arranged at described interior tube body in be connected with channel switch mechanism in the formed annular space of described outer tube body with described interior tube body, and be provided with described piston and push away the body resetting-mechanism.
2. two-tube Safety control valve as claimed in claim 1 is characterized in that the inboard piston of described interior tube body pushes away body and the inboard piston of described outer tube body and pushes away body and be connected with same described piston.
3. according to claim 1 or claim 2 two-tube Safety control valve; It is characterized in that the channel switch mechanism in described interior tube body and the formed annular space of described outer tube body comprises sealing upper cone and sealing lower cone, described sealing upper cone and described sealing lower cone are provided with the sealing contact surface that cooperatively interacts.
4. according to claim 1 or claim 2 two-tube Safety control valve is characterized in that described resetting-mechanism is made up of elastic body and the detent mechanism thereof with on the described interior tube body that are arranged on the described outer tube body.
5. two-tube Safety control valve as claimed in claim 3 is characterized in that the sealing contact surface between described sealing upper cone and the described sealing lower cone is the inclined-plane, and described sealing upper cone and described sealing lower cone are annular solid.
6. two-tube Safety control valve as claimed in claim 5; It is characterized in that described resetting-mechanism is made up of spring and the detent mechanism thereof with on the described interior tube body that are arranged on the described outer tube body; Spring on the described outer tube body and detent mechanism thereof are positioned at the below, top of described sealing lower cone, and spring on the described interior tube body and detent mechanism thereof are positioned at the top, bottom of described sealing upper cone.
7. two-tube Safety control valve as claimed in claim 4; It is characterized in that the channel switch mechanism in described interior tube body and the formed annular space of described outer tube body comprises sealing upper cone and sealing lower cone; Described sealing upper cone and described sealing lower cone are provided with the sealing contact surface that cooperatively interacts, and the sealing contact surface between described sealing upper cone and the described sealing lower cone is the inclined-plane.
8. two-tube Safety control valve as claimed in claim 7, the elastic body that it is characterized in that described resetting-mechanism is a spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202501548U CN202202840U (en) | 2011-07-15 | 2011-07-15 | Double-tube safety control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202501548U CN202202840U (en) | 2011-07-15 | 2011-07-15 | Double-tube safety control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202202840U true CN202202840U (en) | 2012-04-25 |
Family
ID=45966969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202501548U Expired - Fee Related CN202202840U (en) | 2011-07-15 | 2011-07-15 | Double-tube safety control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202202840U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150455A (en) * | 2015-04-01 | 2016-11-23 | 中国石油化工股份有限公司 | Located type safety control |
| CN107916910A (en) * | 2016-10-10 | 2018-04-17 | 中国石油化工股份有限公司 | Independent hydraulic control packer pressure valve |
| CN108071377A (en) * | 2016-11-18 | 2018-05-25 | 中国石油化工股份有限公司 | The long-acting injection well downhole flow regulator of the small flow of bridge type mechanism |
-
2011
- 2011-07-15 CN CN2011202501548U patent/CN202202840U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150455A (en) * | 2015-04-01 | 2016-11-23 | 中国石油化工股份有限公司 | Located type safety control |
| CN106150455B (en) * | 2015-04-01 | 2019-01-25 | 中国石油化工股份有限公司 | Located type safety control |
| CN107916910A (en) * | 2016-10-10 | 2018-04-17 | 中国石油化工股份有限公司 | Independent hydraulic control packer pressure valve |
| CN108071377A (en) * | 2016-11-18 | 2018-05-25 | 中国石油化工股份有限公司 | The long-acting injection well downhole flow regulator of the small flow of bridge type mechanism |
| CN108071377B (en) * | 2016-11-18 | 2024-03-01 | 中国石油化工股份有限公司 | Bridge-type mechanism small-flow long-acting water distributor |
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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: 20120425 Termination date: 20120715 |