CN201391272Y - Flooding well wellhead single-flow valve - Google Patents
Flooding well wellhead single-flow valve Download PDFInfo
- Publication number
- CN201391272Y CN201391272Y CN200920021411U CN200920021411U CN201391272Y CN 201391272 Y CN201391272 Y CN 201391272Y CN 200920021411 U CN200920021411 U CN 200920021411U CN 200920021411 U CN200920021411 U CN 200920021411U CN 201391272 Y CN201391272 Y CN 201391272Y
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- CN
- China
- Prior art keywords
- valve
- connector
- water injection
- ball
- flooding well
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a flooding well wellhead single-flow valve, which consists of a plugging connector, a valve cover, an outlet connector, a valve ball and a valve seat connector, wherein the valve seat connector is arranged on the lower part inside the valve cover, and the valve seat connector is connected with the valve cover in a threading way, the valve ball is arranged inside the valve cover, the diameter of the valve ball is more than the inner diameter of the valve seat connector, the valve ball is arranged at an upper end port of the valve seat connector, the plugging connector is installed on the upper part of the valve cover, the plugging connector is connected with the valve cover in a threading way, the outlet connector is welded on the side surface of the valve body, and the outlet connector is arranged above the valve ball. The right end of the outlet connector 3 is welded with a flooding well wellhead device, and the lower part of the valve connector 5 is welded with a ground water injection pipeline. The injected water enters into the flooding well wellhead single-flow valve through the ground water injection pipeline and flows into the flooding well wellhead device from the outlet connector 3 to be injected into the well after jacking up the valve ball. When the water injection of the flooding well is stopped for reasons, the valve ball drops off to prevent the stratum water from returning to the ground water injection pipeline, so that the stratum is free from producing sudden movement having sand; moreover, the water injection of the flooding well can be reopened after the injection is stopped, so that the economic loss of the flooding well caused by the stopping of the water injection can be avoided.
Description
Technical field:
The utility model relates to the device that the water injection well in oil fields well head is used, and is a kind of water injection well well head ball-and-seat.
Background technology:
Because the water injection well strata pressure height that has, when water injection well stops annotating for some reason, be injected into injection water in the stratum and will return and tell in the Hui Jing, and with waterflood-transmission line earthward pumping plant reflux, water filling layer flow in returning the process of telling is big, flow velocity is fast, and the stratum produces exciting, easily reservoir sand is carried out, cause sand to bury water injection string, make it water filling again, the stratum water injection rate reduces, and influences well oil output.Because water filling again is forced to the operation well workover, increase operating cost.Behind sand card tubing string, also can occur during the operation well workover tripping out tubing string smoothly, carry out the heavy repair task of high cost, economic loss is huge.
Summary of the invention:
The purpose of this utility model is a kind of water injection well well head ball-and-seat of design, when making water injection well stop annotating for some reason, is injected into injection water in the stratum and can not returns and tell in the Hui Jing, avoids water injection well to shake out, and guarantees the water injection well water filling that drives a well again smoothly.
The purpose of this utility model is achieved in that it is made up of shutoff joint, valve bonnet, outlet connection, valve ball, valve base joint, valve base joint is installed under the valve bonnet inner, between the two by being threaded, valve ball is installed in the valve bonnet, and the valve ball diameter is greater than the valve base joint internal diameter, and valve ball is located in valve base joint upper port place, the shutoff joint is installed in valve bonnet top, be threaded between the two, outlet connection is welded on the valve body side, and outlet connection is positioned at the top of valve ball.
The beneficial effects of the utility model are: after water injection well stopped to annotate for some reason, valve ball fell, and stoped formation water to return the ground waterflood-transmission line, the stratum can not produce excitement, can not shake out, the water filling that can drive a well again smoothly after stopping annotating is avoided water injection well to stop to annotate the back for some reason and is produced economic loss.
Description of drawings:
Accompanying drawing is the assembling drawing of the utility model embodiment.
The specific embodiment:
Below in conjunction with accompanying drawing the utility model embodiment is described.
See by figure, the utility model is made up of shutoff joint 1, valve bonnet 2, outlet connection 3, valve ball 4, valve base joint 5, valve base joint 5 is installed in 2 times inside of valve bonnet, and by being threaded, valve ball 4 is installed in the valve bonnet 2 between the two, valve ball 4 diameters are greater than valve base joint 5 internal diameters, valve ball 4 is located in valve base joint 5 upper port places, and shutoff joint 1 is installed in valve bonnet 2 tops, is threaded between the two, outlet connection 3 is welded on valve body 2 sides, and outlet connection 3 is positioned at the top of valve ball 4.
Claims (1)
1, a kind of water injection well well head ball-and-seat, by shutoff joint (1), valve bonnet (2), outlet connection (3), valve ball (4), valve base joint (5) is formed, it is characterized in that: valve base joint (5) is installed under the valve bonnet (2) inner, between the two by being threaded, valve ball (4) is installed in the valve bonnet (2), valve ball (4) diameter is greater than valve base joint (5) internal diameter, valve ball (4) is located in valve base joint (5) upper port place, shutoff joint (1) is installed in valve bonnet (2) top, be threaded between the two, outlet connection (3) is welded on valve body (2) side, and outlet connection (3) is positioned at the top of valve ball (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920021411U CN201391272Y (en) | 2009-04-18 | 2009-04-18 | Flooding well wellhead single-flow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920021411U CN201391272Y (en) | 2009-04-18 | 2009-04-18 | Flooding well wellhead single-flow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201391272Y true CN201391272Y (en) | 2010-01-27 |
Family
ID=41598098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920021411U Expired - Fee Related CN201391272Y (en) | 2009-04-18 | 2009-04-18 | Flooding well wellhead single-flow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201391272Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632155A (en) * | 2015-02-08 | 2015-05-20 | 孔涛 | Flowback preventing device for water injection of well |
| CN114482950A (en) * | 2020-10-27 | 2022-05-13 | 中国石油天然气股份有限公司 | Injection increasing device for water injection well |
-
2009
- 2009-04-18 CN CN200920021411U patent/CN201391272Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632155A (en) * | 2015-02-08 | 2015-05-20 | 孔涛 | Flowback preventing device for water injection of well |
| CN114482950A (en) * | 2020-10-27 | 2022-05-13 | 中国石油天然气股份有限公司 | Injection increasing device for water injection well |
| CN114482950B (en) * | 2020-10-27 | 2023-09-26 | 中国石油天然气股份有限公司 | Injection increasing device for water injection well |
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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: 20100127 Termination date: 20100418 |