CN205400676U - Ground hydraulic control's downhole safety valve - Google Patents
Ground hydraulic control's downhole safety valve Download PDFInfo
- Publication number
- CN205400676U CN205400676U CN201620121648.9U CN201620121648U CN205400676U CN 205400676 U CN205400676 U CN 205400676U CN 201620121648 U CN201620121648 U CN 201620121648U CN 205400676 U CN205400676 U CN 205400676U
- Authority
- CN
- China
- Prior art keywords
- top connection
- ground hydraulic
- controls
- fluid cylinder
- cylinder set
- 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.)
- Active
Links
Abstract
The utility model provides a ground hydraulic control's downhole safety valve, includes the top connection, passes pressure hole, piston, seal box, packing, hydraulic cylinder cover, center tube, adjustable ring, spring, spring housing, butterfly valve assembly and lower clutch. The top connection is lived in peace with each other to pretend with piston, hydraulic cylinder cover, center tube, spring housing, lower clutch and butterfly valve assembly in order and is connected, is equipped with in the top connection to pass to press the hole. The utility model discloses the length of have that the structure is simplified, the processing degree of difficulty is little, assembly performance's stability, operational reliability are high, accurately implementing ground hydraulic control, hydraulic cylinder cover is little, dispose special nipple joint, in case take place that the accuse of relief valve liquid is malfunctioning does not open during the phenomenon, can follow and go into the steel wire under the special nipple joint and throw and drag for, and is right the utility model discloses ground hydraulic control's downhole safety valve forces to open to few in kill -job operation such as oil pipe under, process, characteristics such as efficient are extensively used in the water injection technology of oil field.
Description
Technical field
This utility model relates to water injection well in oil fields string matching instrument, particularly to the storm valve that a kind of ground hydraulic controls.
Background technology
China Patent Publication No. CN202946110U discloses the storm valve that a kind of structure includes controlling assembly, butterfly valve assembly and locked assembly and being made up of top connection, pressure transmission set, transit joint, spring housing, fixed cover, piston, central canal, spring, lock tube, locking bar, snap, valve plate, torsion spring, pin, valve plate seat, sealing ring and lower contact etc..The storm valve of this structure is that oilfield oil well tubing string safe operation has played effect, but it has the disadvantage that (1) locked assembly utilization rate is low simultaneously, its emergency set simply applied when ground hydraulic controls malfunctioning, the probability of on-the-spot application is less than 0.1%, causing that due to the existence of this mechanism the structures such as pressure transmission set, transit joint are complicated, difficulty of processing is big；(2) centrage and the relief valve centerline parallel of hydraulic channel is overlapped in pressure transmission, and aperture is thin and grows, and crudy and precision are difficult to ensure that；(3) the packing box design attitude in transit joint is too deep, is not easy to install, and after installation, alignment is poor；(4) assemble loaded down with trivial details, product stability is poor, result of use is unsatisfactory.
Summary of the invention
The purpose of this utility model is to provide the storm valve that the ground hydraulic of a kind of improvement controls, adopt the combinative structure of piston, fluid cylinder set, seal box, central canal, adjustment ring and butterfly valve assembly, both there is simple and reasonable advanced person, be prone to processing, easy to assembly, application performance is stable, reliable feature, again efficiently against or avoid in above-mentioned prior art exist shortcoming or deficiency.
The storm valve that ground hydraulic described in the utility model controls, including top connection, pressure transmission hole, piston, seal box, packing, fluid cylinder set, central canal, adjustment ring, spring, spring housing, butterfly valve assembly and lower contact.Described top connection is sequentially connected with piston, fluid cylinder set, central canal, spring housing, lower contact and butterfly valve assembly, and top connection is provided with pressure transmission hole.
Wherein, the side of described top connection is provided with pressure transmission hole, and this pressure transmission hole is connected with fluid cylinder set, and the top of pressure transmission hole is liquid controling pipe line interface.Described piston is installed in fluid cylinder set, and piston lower portion is connected with central canal, and top is spacing by the interior step of top connection.The top of described fluid cylinder set is connected with top connection, and bottom is connected with spring housing.Described spring is installed on the central canal under fluid cylinder set with the annular space of spring housing composition, and the top of spring is provided with adjustment ring.Described butterfly valve assembly is connected to the lower end of spring housing, is in the inner chamber of lower contact.The angle α of 1 °-10 ° it is provided with between axis and the relief valve centrage of described pressure transmission hole.Described top connection and piston lower portion are provided with seal box.The upper and lower part of fluid cylinder set and the middle part of spring housing are provided with packing.The upper surface of described fluid cylinder set is provided with the pressure transmission groove of at least one conduction fluid pressure, and its shape can be square, rectangle, semicircle or triangle.Described top connection and piston lower portion are provided with seal box.The upper and lower part of described fluid cylinder set and the middle part of spring housing are provided with packing.
This utility model has the advantage that compared with prior art
1, simplify downhole safety valve arrangement, reduce the difficulty of processing of top connection, fluid cylinder set, it is ensured that stablizing of its assembly performance, improve its functional reliability.
2, top connection is provided with liquid controling pipe line interface, can control erection of equipment with ground hydraulic easily and be connected, implement ground hydraulic effectively and accurately and control.
3, top connection adopts overall blank to be processed, and is optimized the position of hydraulic control pressure transmission hole and piston packing box.Simplifying hydraulic control part-structure, the axis of pressure transmission hole and relief valve centrage are designed to the angle α of 1 °-10 °, shorten hydraulic pressure hole depth, reduce difficulty of processing, it is ensured that machining accuracy.
4, the length of fluid cylinder set is shortened, fluid cylinder is put end face structure and is optimized design, making it meet two purposes: one is spacing for seal box, two is import in fluid cylinder by the pressure of liquid controling pipe line or the importing of the liquid non-resistance (or lower resistance) in fluid cylinder is controlled pipeline.
5, being configured with supporting pipe nipple, once there is the malfunctioning phenomenon of not opening of relief valve hydraulic control, can enter wire Launching and Bailing from special-purpose nipple, the storm valve that this utility model ground hydraulic is controlled carries out enforced opening, in order to the operation such as kill-job, lower oil tube.
6, liquid controling pipe line interface adopts NPT screw thread or common screw connection to install, convenient and safe reliably.
Accompanying drawing explanation
Fig. 1 is a kind of example structure schematic diagram of the present utility model.
Fig. 2 puts end face B-B structural representation by the fluid cylinder shown in Fig. 1.
Fig. 3 is by the supporting Special short structural representation shown in Fig. 1.
Detailed description of the invention
Consult Fig. 1-Fig. 3, the storm valve that a kind of ground hydraulic controls, including top connection 1, pressure transmission hole 2, piston 3, seal box 4, packing 5, fluid cylinder set 6, central canal 7, regulate ring 8, spring 9, spring housing 10, butterfly valve assembly 11 and lower contact 12.Top connection 1 is sequentially connected with piston 3, fluid cylinder set 6, central canal 7, spring housing 10, lower contact 12 and butterfly valve assembly 11, and top connection 1 is provided with pressure transmission hole 2.
The side of top connection 1 is provided with pressure transmission hole 2, and this pressure transmission hole 2 overlaps 6 with fluid cylinder and is connected, and the top of pressure transmission hole 2 is liquid controling pipe line interface.Piston 3 is installed in fluid cylinder set 6, and piston 3 bottom is connected with central canal 7, and top is spacing by the interior step of top connection 1.The top of fluid cylinder set 6 is connected with top connection 1, and bottom is connected with spring housing 10.Spring 9 is installed on the central canal 7 under fluid cylinder set 6 with the annular space of spring housing 10 composition, and the top of spring 9 is provided with adjustment ring 8.Butterfly valve assembly 11 is connected to the lower end of spring housing 10, is in the inner chamber of lower contact 12.The angle α of 1 °-10 ° it is provided with between axis and the relief valve centrage of pressure transmission hole 2.Top connection 1 and piston 3 bottom are provided with seal box 4.The upper and lower part of fluid cylinder set 6 and the middle part of spring housing 10 are provided with packing 5.The upper surface of fluid cylinder set 6 is provided with the pressure transmission groove 13 of at least one conduction fluid pressure, and its shape can be square, rectangle, semicircle or triangle.Top connection and piston lower portion are provided with seal box 4.The upper and lower part of fluid cylinder set and the middle part of spring housing are provided with packing 5.
During operation: ground hydraulic controls liquid and imported fluid cylinder set 6 by liquid controling pipe line interface, piston 3 is promoted to move downward, drive central canal 7 to move simultaneously, compression spring 9, open butterfly valve assembly 11, fluid control pressure is maintained on on-the-spot desirable value, relief valve can be made to be maintained at opening by this utility model, normally produce；When being in an emergency, the pressure that ground hydraulic controls is let out when being 0, forces central canal 7 to drive horizontal reset on piston bush 6 under spring 9 elastic force effect, and butterfly valve assembly 11 is accordingly turned off, and stops downhole oil air-flow earthward, it is ensured that Oil/gas Well tubing string safety.When occur relief valve hydraulic control malfunctioning do not open phenomenon time, it is connected above supporting pipe nipple 14 is installed in top connection 1, enter wire Launching and Bailing 14 times by this supporting pipe nipple, the storm valve of this utility model hydraulic control can be carried out enforced opening, in order to be smoothed out the operation such as kill-job, lower oil tube.
Claims (10)
1. the storm valve that a ground hydraulic controls, including top connection, pressure transmission hole, piston, seal box, packing, fluid cylinder set, central canal, adjustment ring, spring, spring housing, butterfly valve assembly and lower contact, it is characterized in that described top connection sequentially lives in peace with each other to pretend with piston, fluid cylinder set, central canal, spring housing, lower contact and butterfly valve assembly to be connected, top connection is provided with pressure transmission hole.
2. the storm valve that ground hydraulic according to claim 1 controls, it is characterised in that described pressure transmission hole installs the side in top connection, and this pressure transmission hole is connected with fluid cylinder set, and the top of pressure transmission hole is liquid controling pipe line interface.
3. the storm valve that ground hydraulic according to claim 1 controls, it is characterised in that described piston is installed in fluid cylinder set, and piston lower portion is connected with central canal, and top is spacing by the interior step of top connection.
4. the storm valve that ground hydraulic according to claim 1 controls, it is characterised in that the top of described fluid cylinder set is connected with top connection, and bottom is connected with spring housing.
5. the storm valve that the ground hydraulic according to claim 1 or 4 controls, it is characterised in that the spring housing under described fluid cylinder set is constituted with central canal has annular space, spring to be installed on this annular space, and the top of spring is provided with adjustment ring.
6. the storm valve that ground hydraulic according to claim 1 controls, it is characterised in that described butterfly valve assembly is connected to the lower end of spring housing, is in the inner chamber of lower contact.
7. the storm valve that ground hydraulic according to claim 1 controls, it is characterised in that be provided with the angle α of 1 °-10 ° between axis and the relief valve centrage of described pressure transmission hole 2.
8. the storm valve that the ground hydraulic according to claim 1 or 4 controls, it is characterised in that the upper surface of described fluid cylinder set is provided with the pressure transmission groove of at least one conduction fluid pressure, and it is shaped as square, rectangle, semicircle or triangle.
9. the storm valve that ground hydraulic according to claim 1 controls, it is characterised in that described top connection and piston lower portion are provided with seal box.
10. the storm valve that ground hydraulic according to claim 1 controls, it is characterised in that the upper and lower part of described fluid cylinder set and the middle part of spring housing are provided with packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620121648.9U CN205400676U (en) | 2016-02-16 | 2016-02-16 | Ground hydraulic control's downhole safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620121648.9U CN205400676U (en) | 2016-02-16 | 2016-02-16 | Ground hydraulic control's downhole safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205400676U true CN205400676U (en) | 2016-07-27 |
Family
ID=56447781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620121648.9U Active CN205400676U (en) | 2016-02-16 | 2016-02-16 | Ground hydraulic control's downhole safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205400676U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106639981A (en) * | 2016-11-29 | 2017-05-10 | 中国海洋石油总公司 | Hydraulic control valve |
| CN108643858A (en) * | 2018-05-17 | 2018-10-12 | 罗运川 | Downhole safety valve piston inlet cleaning system and verification method and cleaning method |
| CN109779615A (en) * | 2019-01-16 | 2019-05-21 | 中国石油天然气股份有限公司 | Pressure drives well layering admission pressure gauge prop barrel |
| CN110206509A (en) * | 2019-05-24 | 2019-09-06 | 中国地质科学院地质力学研究所 | A kind of water level differential pressure control valve |
| CN110206517A (en) * | 2019-06-26 | 2019-09-06 | 山东大东联石油设备有限公司 | A kind of injection well downhole flow regulator |
| CN112282697A (en) * | 2020-11-19 | 2021-01-29 | 百勤能源科技（惠州）有限公司 | Downhole safety valve |
| CN112855077A (en) * | 2019-11-28 | 2021-05-28 | 太原理工大学 | Downhole safety valve |
| CN113565466A (en) * | 2021-05-26 | 2021-10-29 | 中国海洋石油集团有限公司 | Electric control liquid-driven underground flow control valve |
-
2016
- 2016-02-16 CN CN201620121648.9U patent/CN205400676U/en active Active
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106639981B (en) * | 2016-11-29 | 2019-01-11 | 中国海洋石油集团有限公司 | A kind of hydraulic control valve |
| CN106639981A (en) * | 2016-11-29 | 2017-05-10 | 中国海洋石油总公司 | Hydraulic control valve |
| CN108643858B (en) * | 2018-05-17 | 2020-11-10 | 罗运川 | Cleaning system for liquid inlet of underground safety valve piston, verification method and cleaning method |
| CN108643858A (en) * | 2018-05-17 | 2018-10-12 | 罗运川 | Downhole safety valve piston inlet cleaning system and verification method and cleaning method |
| CN112539043A (en) * | 2018-05-17 | 2021-03-23 | 罗运川 | Cleaning method and verification method for liquid inlet of piston of underground safety valve |
| CN109779615A (en) * | 2019-01-16 | 2019-05-21 | 中国石油天然气股份有限公司 | Pressure drives well layering admission pressure gauge prop barrel |
| CN110206509A (en) * | 2019-05-24 | 2019-09-06 | 中国地质科学院地质力学研究所 | A kind of water level differential pressure control valve |
| CN110206509B (en) * | 2019-05-24 | 2022-05-27 | 中国地质科学院地质力学研究所 | Water level differential pressure control valve |
| CN110206517A (en) * | 2019-06-26 | 2019-09-06 | 山东大东联石油设备有限公司 | A kind of injection well downhole flow regulator |
| CN112855077A (en) * | 2019-11-28 | 2021-05-28 | 太原理工大学 | Downhole safety valve |
| CN112282697A (en) * | 2020-11-19 | 2021-01-29 | 百勤能源科技（惠州）有限公司 | Downhole safety valve |
| CN113565466A (en) * | 2021-05-26 | 2021-10-29 | 中国海洋石油集团有限公司 | Electric control liquid-driven underground flow control valve |
| CN113565466B (en) * | 2021-05-26 | 2023-09-01 | 中国海洋石油集团有限公司 | Electric control liquid drive type underground flow control valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205400676U (en) | Ground hydraulic control's downhole safety valve | |
| CN104948148A (en) | Stepless flow control device | |
| CN203516858U (en) | One-way valve | |
| CA2627822A1 (en) | Top hold down rod pump with hydraulically activated drain and method of use | |
| CN201068787Y (en) | Down-hole distributor | |
| CN206144523U (en) | Two overhead paddle check valves | |
| CN203383783U (en) | Closed-type bottom reversing switch | |
| CN203394480U (en) | Layered acidification device for oil-water well | |
| CN205063892U (en) | Washable well packer | |
| CN204284556U (en) | Pipe leakage automatic safety device | |
| CN205859261U (en) | Pre-loaded one-way valve | |
| CN202972300U (en) | Ultrahigh pressure detachable cone sealing pressure-measuring connector | |
| CN103411025B (en) | A kind of virtualized location indicator for deep water gate valve hydraulic actuator | |
| CN208534455U (en) | It is a kind of for being remotely controlled the stepless opening degree valve of each reservoir withdrawal | |
| CN204187041U (en) | Pneumatic triangle vavle | |
| CN203757229U (en) | Articulated pipe connector for hydraulic pipeline | |
| CN203223207U (en) | Gas-liquid joint control subsurface safety valve device | |
| CN205652681U (en) | Take alarm device's oil drum | |
| CN201321840Y (en) | Constant pressure valve used for oil field well completion | |
| CN104455905A (en) | Plug device | |
| CN205558859U (en) | A integral type gun muzzle for high pressure well mouth | |
| CN204899862U (en) | Downhole safety valve | |
| CN2573665Y (en) | Water plugging packer | |
| CN109209311A (en) | A kind of level pressure water dispensing apparatus | |
| CN204402426U (en) | A kind of annular space hydraulic control security valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |