CN203285391U - Pressure-differential oil jacket communication valve - Google Patents
Pressure-differential oil jacket communication valve Download PDFInfo
- Publication number
- CN203285391U CN203285391U CN201320259514XU CN201320259514U CN203285391U CN 203285391 U CN203285391 U CN 203285391U CN 201320259514X U CN201320259514X U CN 201320259514XU CN 201320259514 U CN201320259514 U CN 201320259514U CN 203285391 U CN203285391 U CN 203285391U
- Authority
- CN
- China
- Prior art keywords
- top connection
- oil jacket
- spool
- radial flow
- annular space
- 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.)
- Withdrawn - After Issue
Links
Images
Landscapes
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The utility model discloses a pressure-differential oil jacket communication valve which aims to overcome the defects that mis-packing is easily caused when an existing hydraulic packer carries out underground work, underground relevant parameters can not be monitored through an annulus, and reverse well flushing can not be carried out on the portion above the packer. The pressure-differential oil jacket communication valve is characterized in that an inner boss is arranged below internal threads of an upper connector, and an inner boss is arranged below internal threads of the upper end of a lower connector; a valve core and a valve sleeve are arranged between the inner boss below the internal threads of the upper connector and the inner boss below the internal threads of the upper end of the lower connector; an annulus is arranged between the lower end portion of the valve core and an inner hole of the upper connector, and axial springs are arranged in the annulus; the upper end portion of the valve sleeve is inserted into the lower end portion of the annulus, and the axial position of the valve sleeve is fixed; a radial liquid flowing hole is formed in the portion, corresponding to the lower end portion of the annuals, of the valve core, and a radial liquid flowing hole is formed in the portion, corresponding to the lower end portion of annuals, of the upper connector. The pressure-differential oil jacket communication valve has the advantages of being simple and reasonable in structure, capable of opening and closing a radial liquid flowing channel according to production operation needs, convenient to operate, safe and reliable.
Description
Technical field
The utility model relates to a kind of kit of oil exploitation underground work, especially relates to a kind of differential oil jacket coupling cock.
Background technology
, due to some hole condition requirement, often need to install and use hydraulic packer in oilfield exploitation and underground work.Use hydraulic packer mainly to have following problem, 1. due to the restriction of frame for movement, easily mistake is setting in the process of going into the well for hydraulic packer, affects construction quality; 2. use in the manufacturing process of flow string after setting of hydraulic packer, existence can't be by the problem of relevant parameter under the annular space monitor well; 3. when part is implemented the anti-flushing well operation more than need to be to the hydraulic packer of flow string,, due to oil pipe and sleeve pipe UNICOM not, can't implement the anti-flushing well operation.
The utility model content
For overcome the easy mistake of existing hydraulic packer in implementing underground work setting, can not be by the annular space monitor well under relevant parameter and can't be to packer more than the deficiency of enforcement anti-flushing well operation, the utility model provides a kind of differential oil jacket coupling cock.
The technical scheme that its technical problem that solves the utility model adopts is: differential oil jacket coupling cock comprises top connection, lower contact, top connection is fixedly connected with lower contact, the upper end of top connection is the internal thread that is connected with tubing string, there is the external screw thread that is connected with tubing string the lower contact bottom, there is inner convex platform the internal thread below of top connection, and there is inner convex platform the below of lower contact upper end internal thread.Between the inner convex platform of top connection internal thread below and lower contact upper end internal thread below inner convex platform, spool, valve pocket are installed; Between spool bottom and top connection endoporus, annular space is arranged, axle spring is installed in annular space; The annular space bottom is inserted in the valve pocket upper end, and the axial location of valve pocket is fixed.On spool corresponding to annular space bottom, the radial flow of liquid hole is arranged, in top connection corresponding to annular space bottom, the radial flow of liquid hole is arranged.
When differential oil jacket coupling cock was the original state of installing, the radial flow of liquid passage that the radial flow of liquid hole in the radial flow of liquid hole on spool, annular space, top connection forms was opened; In the operation process, pressurization makes the spool down sliding, and the radial flow of liquid hole is positioned at valve pocket, the radial flow of liquid pathway closure.
Between spool upper end and top connection, radial direction seal ring is installed; Between spool bottom cylindrical and valve pocket endoporus, radial direction seal ring is installed; Between valve pocket cylindrical and top connection, radial direction seal ring is installed.
The beneficial effects of the utility model are, and are simple and reasonable for structure, can need to open and close the radial flow of liquid passage according to production operation, and convenient operation is safe and reliable.
Description of drawings
Fig. 1 is the differential oil jacket coupling cock of the utility model structural representation.
Fig. 2 is the differential oil jacket coupling cock of the utility model radial flow of liquid pathway closure schematic diagram.
In figure: 1. top connection, 2. spool, 3. radial flow of liquid hole, 4. axle spring, 5. radial flow of liquid hole, 6. valve pocket, 7. annular space, 8. lower contact.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.But what those skilled in the art should know is to the invention is not restricted to the listed specific embodiment, as long as spirit according to the invention all should be included in protection scope of the present invention.
The differential oil jacket coupling cock of the utility model, comprise top connection 1, lower contact 8, and top connection 1 is fixedly connected with lower contact 8; There is the internal thread that is connected with tubing string the upper end of top connection 1, and there is inner convex platform the internal thread below; There is the external screw thread that is connected with tubing string lower contact 8 bottoms, and there is inner convex platform the below of lower contact (8) upper end internal thread.
Between the inner convex platform of top connection 1 internal thread below and lower contact 8 internal thread below, upper end inner convex platforms, spool 2, valve pocket 6 are installed.Spool 2 upper ends and top connection 1 endoporus are slidably matched, and can move up and down along top connection 1 endoporus, between spool 2 upper ends and top connection 1, radial direction seal ring are installed; Between spool 2 bottoms and top connection endoporus, annular space 7 is arranged, axle spring 4 is enclosed within on the cylindrical of spool 2 lower ends, is positioned at annular space 7.Annular space 7 bottoms are inserted in valve pocket 6 upper ends, between spool 2 lower end cylindricals and valve pocket 6 endoporus, radial direction seal ring are installed; Valve pocket 6, by the inner convex platform of lower contact 8 and the seam axial restraint of top connection lower end, is equipped with radial direction seal ring between valve pocket 6 cylindricals and top connection 1.
On spool 2 corresponding to annular space 7 bottoms, radial flow of liquid hole 3 is arranged, in top connection 1 corresponding to annular space 7 bottoms, radial flow of liquid hole 5 is arranged.The quantity in radial flow of liquid hole 3, radial flow of liquid hole 5 is 3-4, and is uniformly distributed along the circumference.When differential oil jacket coupling cock was the original state (normality) of installing, the radial flow of liquid passage that the radial flow of liquid hole 5 in the radial flow of liquid hole 3 on spool 2, annular space 7 and top connection 1 forms was opened.In operation process, pressurization can so that spool 2 along top connection 1 endoporus down sliding, until the radial flow of liquid hole 3 on spool 2 is while being positioned at valve pocket 6, the radial flow of liquid pathway closure.
The utility model is arranged on flow string, and differential oil jacket coupling cock generally radial flow of liquid passage is in open mode, oil pipe and sleeve pipe UNICOM.When suppressing in tubing string, by throttling action, spool 2 is moved down, the radial flow of liquid hole 3 on spool 2 is closed, the radial flow of liquid pathway closure of differential oil jacket coupling cock; Continuation is suppressed in tubing string, can set hydraulic packer; After stopping suppressing, effect bottom spool 2 at spring 4 resets, and the radial flow of liquid passage of differential oil jacket coupling cock is in opening, makes oil pipe and sleeve pipe keep UNICOM, be convenient to also can implement the anti-flushing well operation by annular space as required by associated dynamic parameter under the annular space monitor well.
It should be noted that above-described embodiment is example and unrestricted the present invention, those skilled in the art can design a lot of alternate embodiments and not break away from the claim scope of this patent.
Claims (3)
1. a differential oil jacket coupling cock, comprise top connection, lower contact, and top connection is fixedly connected with lower contact, and there is the internal thread that is connected with tubing string the upper end of top connection, and there is the external screw thread that is connected with tubing string the lower contact bottom, it is characterized in that:
There is inner convex platform the internal thread below of described top connection (1), and there is inner convex platform the below of described lower contact (8) upper end internal thread; Between the inner convex platform of top connection (1) internal thread below and lower contact (8) upper end internal thread below inner convex platform, spool (2), valve pocket (6) are installed; Annular space (7) is arranged between spool (2) bottom and top connection endoporus, axle spring (4) is installed in annular space (7); Annular space (7) bottom is inserted in valve pocket (6) upper end, and the axial location of valve pocket (6) is fixed;
On spool (2) corresponding to described annular space (7) bottom, radial flow of liquid hole (3) is arranged, in top connection (1) corresponding to described annular space (7) bottom, radial flow of liquid hole (5) is arranged.
2. differential oil jacket coupling cock according to claim 1 is characterized in that: during for the original state of installing, the radial flow of liquid passage that described radial flow of liquid hole (3), annular space (7), radial flow of liquid hole (5) form is opened when differential oil jacket coupling cock; In the operation process, pressurization makes spool (2) down sliding, and radial flow of liquid hole (3) are positioned at valve pocket (6), radial flow of liquid pathway closure.
3. differential oil jacket coupling cock according to claim 2, is characterized in that: between described spool (2) upper end and top connection (1), radial direction seal ring is installed; Between spool (2) bottom cylindrical and valve pocket (6) endoporus, radial direction seal ring is installed; Between valve pocket (6) cylindrical and top connection (1), radial direction seal ring is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320259514XU CN203285391U (en) | 2013-05-14 | 2013-05-14 | Pressure-differential oil jacket communication valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320259514XU CN203285391U (en) | 2013-05-14 | 2013-05-14 | Pressure-differential oil jacket communication valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203285391U true CN203285391U (en) | 2013-11-13 |
Family
ID=49541760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320259514XU Withdrawn - After Issue CN203285391U (en) | 2013-05-14 | 2013-05-14 | Pressure-differential oil jacket communication valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203285391U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153740A (en) * | 2013-05-14 | 2014-11-19 | 天津大港油田钻采技术开发公司 | Differential pressure type oil sleeve communication valve |
| CN108458124A (en) * | 2018-06-28 | 2018-08-28 | 中国海洋石油集团有限公司 | A kind of sealing structure of downhole flow control valve |
-
2013
- 2013-05-14 CN CN201320259514XU patent/CN203285391U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153740A (en) * | 2013-05-14 | 2014-11-19 | 天津大港油田钻采技术开发公司 | Differential pressure type oil sleeve communication valve |
| CN104153740B (en) * | 2013-05-14 | 2017-03-29 | 天津大港油田钻采技术开发公司 | Differential oil jacket coupling cock |
| CN108458124A (en) * | 2018-06-28 | 2018-08-28 | 中国海洋石油集团有限公司 | A kind of sealing structure of downhole flow control valve |
| CN108458124B (en) * | 2018-06-28 | 2019-11-12 | 中国海洋石油集团有限公司 | A kind of sealing structure of downhole flow control valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105507861A (en) | Tubular column for separated layer water injection | |
| CN201778735U (en) | Steel wire rope blanking plug for subsea production tree | |
| CN203175480U (en) | Internal-pressure type RDS circulating valve | |
| CN203285391U (en) | Pressure-differential oil jacket communication valve | |
| CN102747979A (en) | Bidirectional self-locking type external casing packer | |
| CN205577937U (en) | But blanking plug in recovery type oil pipe | |
| CN104153740A (en) | Differential pressure type oil sleeve communication valve | |
| CN201884002U (en) | Drilling downhole check valve | |
| CN203452734U (en) | Integrated production and wax removing and prevention pipe column for high-pressure gas well | |
| CN206554878U (en) | A kind of pressure relief device | |
| CN202132013U (en) | Underground blow-out preventing device for electric pump well | |
| CN204627544U (en) | Sliding sleeve switch is injected in a kind of layering | |
| CN202628032U (en) | Oil sleeve annulus injection valve | |
| CN105201443B (en) | A kind of blanking plug in oil pipe launched for steel wire | |
| CN205330617U (en) | Novel annular space relief valve | |
| CN202810774U (en) | Bidirectional self-locking outer packer of casing | |
| CN204327054U (en) | The stepless flow control device of hydraulic intelligent | |
| CN104295243B (en) | Oil gas well completion tubing string and well-completing process | |
| CN203403818U (en) | Float collar for floating casing running of extended reach well | |
| CN202645521U (en) | Horizontal well injecting and extracting pipe column of gas reservoir | |
| CN107939331B (en) | Wellhead protection device for water injection well | |
| CN205047187U (en) | A blanking plug in oil pipe for steel wire is put in | |
| CN202325402U (en) | Blowout-preventing plug valve | |
| CN201778733U (en) | Hydraulic penetration device between subsea production tree and tubing hanger | |
| CN202913977U (en) | Casing pipe floating collar |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: TIANJIN DAGANG INSTITUTE OF PETROLEUM ENGINEERING Free format text: FORMER NAME: TIANJIN DAGANG OIL FIELD DRILLING TECHNOLOGY DEVELOPMENT COMPANY |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Three Dagang oil field, Tianjin, Grand Port, No. 300280 Patentee after: DRILLING TECHNOLOGY DEVELOPMENT COMPANY, TIANJIN DAGANG OILFIELD RESEARCH INSTITUTE OF PETROLEUM ENGINEERING Patentee after: Dagang Oil Field Group Co., Ltd. Address before: Three Dagang oil field, Tianjin, Grand Port, No. 300280 Patentee before: Tianjin Dagang Oilfield Drilling Technology Development Co., Ltd. Patentee before: Dagang Oil Field Group Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20131113 Effective date of abandoning: 20170329 |
|
| AV01 | Patent right actively abandoned |