CN109025904B - Inclined cover plate valve for pumping unit monitoring well - Google Patents
Inclined cover plate valve for pumping unit monitoring well Download PDFInfo
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- CN109025904B CN109025904B CN201810830952.4A CN201810830952A CN109025904B CN 109025904 B CN109025904 B CN 109025904B CN 201810830952 A CN201810830952 A CN 201810830952A CN 109025904 B CN109025904 B CN 109025904B
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- cover plate
- pin
- central tube
- cylinder
- threaded connection
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/12—Valve arrangements for boreholes or wells in wells operated by movement of casings or tubings
Abstract
The invention relates to the field of oil field oil extraction engineering, and belongs to an inclined cover plate valve for a monitoring well of an oil pumping unit; the device is designed for solving the problems of overflow in the process of annular space passing test and tubing string tripping of the oil pumping well. The anti-rotation device comprises a guide head (1), an upper connector (2), an upper central tube (3), an anti-rotation pin (4), a pressing cap (5), an upper connecting cylinder (6), a spring (7), a fixing ring (8), a guide rail pin (9), a lower connecting cylinder (10), a lower central tube (11), a sealing cylinder (12), a connecting tube (13), a push cylinder (14), a cover plate seat (15), a cover plate (16), a fixing pin (17), an inclined body (18), a pre-tightening pin (19), a limiting pin (20), a guide pin (21) and a cover plate rotating shaft (22). The invention has the advantages of reasonable structure, simplicity and reliability, effectively avoiding safety risk and environmental pollution caused by overflow in the process of tripping the pipe column and the like.
Description
The technical field is as follows: the invention relates to the field of oil extraction engineering of oil fields, and belongs to an inclined cover plate valve for a monitoring well of an oil pumping unit.
Background art: at present, underground blowout prevention tools are various, such as flap type valves, float type valves and the like, but problems exist, for example, springs in flap type valve cover plates are prone to fatigue to cause mechanism failure, secondary blowout prevention cannot be achieved, and overflow can occur when a pipe column is lifted; the float valve has high requirement on the cleanliness of a sealing surface, the underground adaptability is poor, and no overflow can be ensured when a pipe column is lifted. In addition, the pumping well needs to be lowered into a testing instrument for testing and adjusting subsequently, so that a novel blowout prevention tool needs to be provided, a testing channel can be provided, and effective blowout prevention can be realized.
The invention content is as follows: the invention aims to provide an inclined cover plate valve for a pumping unit monitoring well, which can realize over-annular testing and no overflow in the pipe string tripping process.
The invention is realized by the following technical scheme: the device consists of a guide head, an upper joint, an upper central tube, an anti-rotation pin, a pressing cap, an upper connecting cylinder, a spring, a fixing ring, a guide rail pin, a lower connecting cylinder, a lower central tube, a sealing cylinder, a connecting tube, a push cylinder, a cover plate seat, a cover plate, a fixing pin, an inclined body, a pre-tightening pin, a limiting pin, a guide pin and a cover plate rotating shaft; the upper central tube is in threaded connection with the guide head, the upper connecting cylinder is in threaded connection with the upper connector and fixed through an anti-rotation pin, the pressing cap is in threaded connection with the upper central tube, the spring is arranged between the upper central tube and the upper connecting cylinder, the fixing ring is sleeved on the upper central tube and fixed through a guide rail pin, the lower connecting cylinder is in threaded connection with the upper connecting cylinder, the lower central tube is in threaded connection with the upper central tube, the upper end of the connecting tube is in threaded connection with the lower connecting cylinder, the lower end of the connecting tube is in threaded connection with the cover plate seat, the sealing cylinder is in threaded connection with the pushing cylinder and fixed through the anti-rotation pin, the cover plate is arranged between the cover plate seat and the inclined body, the cover plate is tightly jacked through a pre-tightening pin, the inclined body is fixedly connected with the pushing cylinder through a fixing pin, the.
The lower end of the lower central tube is designed into an inclined plane; the cover plate is designed to be beveled at an angle of 40-50 degrees.
Compared with the prior art, the invention has the following advantages:
the invention has simple and reasonable structure, no spring mechanism on the cover plate and long service life, is suitable for the pumping unit monitoring well, and can complete the over-annular testing and the tripping in the production process of the pumping unit monitoring well
And controlling the overflow in the well in the process of the pipe column. The lower end of the lower central tube is designed to be an inclined plane, so that the contact area between the lower central tube and the cover plate is increased; the cover plate is designed to be inclined at an angle of 40-50 degrees, so that the cover plate is convenient to open and close.
Description of the drawings: FIG. 1 is a schematic structural view of the present invention; fig. 2 is a sectional view a-a of the guide pin 21; fig. 3 is a sectional view of the cover plate rotation shaft 22 taken along the line B-B.
In the figure, 1-a guide head, 2-an upper joint, 3-an upper central tube, 4-an anti-rotation pin, 5-a pressing cap, 6-an upper connecting cylinder, 7-a spring, 8-a fixing ring, 9-a guide rail pin, 10-a lower connecting cylinder, 11-a lower central tube, 12-a sealing cylinder, 13-a connecting tube, 14-a pushing cylinder, 15-a cover plate seat, 16-a cover plate, 17-a fixing pin, 18-an inclined body, 19-a pre-tightening pin, 20-a limiting pin, 21-a guide pin and 22-a cover plate rotating shaft.
The specific implementation mode is as follows: the invention will be further described with reference to the accompanying drawings in which: the invention is composed of a guide head 1, an upper joint 2, an upper central tube 3, an anti-rotation pin 4, a press cap 5, an upper connecting cylinder 6, a spring 7, a fixing ring 8, a guide rail pin 9, a lower connecting cylinder 10, a lower central tube 11, a sealing cylinder 12, a connecting tube 13, a push cylinder 14, a cover plate seat 15, a cover plate 16, a fixing pin 17, an inclined body 18, a pre-tightening pin 19, a limit pin 20, a guide pin 21 and a cover plate rotating shaft 22, wherein the upper central tube 3 is in threaded connection with the guide head 1, the upper connecting cylinder 6 is in threaded connection with the upper joint 2 and is fixed through the anti-rotation pin 4, the press cap 5 is in threaded connection with the upper central tube 3, the spring 7 is arranged between the upper central tube 3 and the upper connecting cylinder 6, the fixing ring 8 is sleeved on the upper central tube 3 and is fixed through the guide rail pin 9, the lower connecting cylinder 10 is in threaded connection with the upper connecting cylinder 6, the lower central, the lower end of the connecting pipe 13 is in threaded connection with a cover plate seat 15, the sealing barrel 12 is in threaded connection with a push barrel 14 and is fixed through an anti-rotation pin 4, the cover plate 16 is arranged between the cover plate seat 15 and an inclined body 18, the cover plate 16 is tightly pushed through a pre-tightening pin 19, the inclined body 18 and the push barrel 14 are fixedly connected through a fixing pin 17, a limiting pin 20 is screwed on the push barrel 14, the lower central pipe 11 is connected with the push barrel 14 through a guide pin 21, and a cover plate rotating shaft 22 is arranged at the top end of the cover plate 16.
The lower end of the lower central tube 11 is designed into an inclined plane; the cover plate 16 is designed to be beveled at an angle of 40-50 degrees.
When the packer is used on site, the packer is connected to the lower end of the releasing packer to form a blowout prevention tubular column, and the blowout prevention tubular column is delivered to a perforation section by an oil pipe to seat and seal the releasing packer. In the delivery process, the spring 7 is in a natural non-compression state, and the cover plate 16 is in a closed state, so that high-pressure fluid in the well is prevented from entering an oil pipe, and blowout prevention of the oil pipe is realized.
During well completion, the lower end of the pump is connected with a matched poking rod and is lowered to the upper end of the blowout prevention pipe column, the poking rod enters the guide rail to move downwards, the cover plate 16 is pushed away by the lower central pipe 11 completely, and a production channel is opened. Meanwhile, the central channel can meet the requirement of putting in a test tool, and the test function is realized.
Claims (3)
1. The utility model provides an inclined apron valve for beam-pumping unit monitoring well which characterized in that: the anti-rotation device comprises a guide head (1), an upper joint (2), an upper central tube (3), an anti-rotation pin (4), a pressing cap (5), an upper connecting cylinder (6), a spring (7), a fixing ring (8), a guide rail pin (9), a lower connecting cylinder (10), a lower central tube (11), a sealing cylinder (12), a connecting tube (13), a push cylinder (14), a cover plate seat (15), a cover plate (16), a fixing pin (17), an inclined body (18), a pre-tightening pin (19), a limiting pin (20), a guide pin (21) and a cover plate rotating shaft (22); wherein the upper central tube (3) is in threaded connection with the guide head (1), the upper connecting cylinder (6) is in threaded connection with the upper joint (2) and is fixed by an anti-rotation pin (4), the pressing cap (5) is in threaded connection with the upper central tube (3), the spring (7) is arranged between the upper central tube (3) and the upper connecting cylinder (6), the fixing ring (8) is sleeved on the upper central tube (3) and is fixed by a guide rail pin (9), the lower connecting cylinder (10) is in threaded connection with the upper connecting cylinder (6), the lower central tube (11) is in threaded connection with the upper central tube (3), the upper end of the connecting tube (13) is in threaded connection with the lower connecting cylinder (10), the lower end of the connecting tube (13) is in threaded connection with the cover plate seat (15), the sealing cylinder (12) is in threaded connection with the pushing cylinder (14) and is fixed by the anti-rotation pin (4), the cover plate (16) is arranged between the cover plate seat (15) and the inclined body (18), and the cover plate (16), the inclined body (18) and the push cylinder (14) are fixedly connected through a fixing pin (17), a limiting pin (20) is screwed on the push cylinder (14), the lower central tube (11) and the push cylinder (14) are connected through a guide pin (21), and the cover plate rotating shaft (22) is arranged at the top end of the cover plate (16).
2. The inclined cover plate valve for the pumping unit monitoring well according to claim 1, is characterized in that: the lower end of the lower central tube (11) is designed into an inclined plane.
3. The inclined cover plate valve for the pumping unit monitoring well according to claim 1, is characterized in that: the cover plate (16) is designed to be inclined at an angle of between 40 and 50 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810830952.4A CN109025904B (en) | 2018-07-26 | 2018-07-26 | Inclined cover plate valve for pumping unit monitoring well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810830952.4A CN109025904B (en) | 2018-07-26 | 2018-07-26 | Inclined cover plate valve for pumping unit monitoring well |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109025904A CN109025904A (en) | 2018-12-18 |
| CN109025904B true CN109025904B (en) | 2020-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810830952.4A Active CN109025904B (en) | 2018-07-26 | 2018-07-26 | Inclined cover plate valve for pumping unit monitoring well |
Country Status (1)
| Country | Link |
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| CN (1) | CN109025904B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201254969Y (en) * | 2008-07-22 | 2009-06-10 | 李中庆 | Blowout prevention controller |
| CN202132013U (en) * | 2010-09-13 | 2012-02-01 | 杨志英 | Underground blow-out preventing device for electric pump well |
| CN202249916U (en) * | 2011-10-16 | 2012-05-30 | 仝旭宏 | Underground spray-prevention tool for pumping unit well pump |
| CN102606109A (en) * | 2012-04-01 | 2012-07-25 | 中国石油集团西部钻探工程有限公司 | Valve-type oil tube floating valve device |
| CN102628348A (en) * | 2012-05-03 | 2012-08-08 | 中国石油集团西部钻探工程有限公司 | Tubular tubing float valve |
| CN204024572U (en) * | 2014-08-27 | 2014-12-17 | 中国石油化工股份有限公司 | Pit shaft spraying prevention switch device and oil extraction pump assembly |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8596359B2 (en) * | 2010-10-19 | 2013-12-03 | Halliburton Energy Services, Inc. | Remotely controllable fluid flow control assembly |
-
2018
- 2018-07-26 CN CN201810830952.4A patent/CN109025904B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201254969Y (en) * | 2008-07-22 | 2009-06-10 | 李中庆 | Blowout prevention controller |
| CN202132013U (en) * | 2010-09-13 | 2012-02-01 | 杨志英 | Underground blow-out preventing device for electric pump well |
| CN202249916U (en) * | 2011-10-16 | 2012-05-30 | 仝旭宏 | Underground spray-prevention tool for pumping unit well pump |
| CN102606109A (en) * | 2012-04-01 | 2012-07-25 | 中国石油集团西部钻探工程有限公司 | Valve-type oil tube floating valve device |
| CN102628348A (en) * | 2012-05-03 | 2012-08-08 | 中国石油集团西部钻探工程有限公司 | Tubular tubing float valve |
| CN204024572U (en) * | 2014-08-27 | 2014-12-17 | 中国石油化工股份有限公司 | Pit shaft spraying prevention switch device and oil extraction pump assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109025904A (en) | 2018-12-18 |
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