CN2306312Y - Well washing valve - Google Patents
Well washing valve Download PDFInfo
- Publication number
- CN2306312Y CN2306312Y CN 97224366 CN97224366U CN2306312Y CN 2306312 Y CN2306312 Y CN 2306312Y CN 97224366 CN97224366 CN 97224366 CN 97224366 U CN97224366 U CN 97224366U CN 2306312 Y CN2306312 Y CN 2306312Y
- Authority
- CN
- China
- Prior art keywords
- well
- valve
- flushing
- main body
- piston
- 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
Links
Abstract
The utility model relates to a well washing valve which belongs to shaft dynamic equipment of an oil pumping well. The well washing valve has the technical scheme that a valve bottom and a well washing piston are arranged on the upper part in a main body. The upper part of the well washing piston and the main body form a cavity. The lower part of the well washing piston is connected with a bottom valve. A magnetic core overflow device and a bottom valve seat are assembled in the bottom valve. A valve ball is arranged between the magnetic core overflow device and the bottom valve seat. An adjustable ring is arranged on the lower part of the main body. A spring is arranged between the well washing piston and the adjustable ring. The well washing valve is matched with an underground packer to be used. The production state of an oil pumping well is improved, and the output of the oil pumping well is enhanced; meanwhile, the well washing situation of the oil pumping well is improved, and a well washing period is extended.
Description
The utility model relates to the downhole tool that uses on a kind of oilfield, particularly a kind of down-hole flushing valve that is connected on the tubing string.
In the pumpingh well manufacturing process of routine, the annular space between oil, the sleeve pipe opens wide, and the liquids and gases of its internal memory can disturb and influence the operating efficiency of oil pumping, in washing well process, flushing fluid can produce back pressure to oil reservoir, penetrates into the stratum simultaneously, thereby polluted reservoir reduces oil well output.
The utility model provides a kind of flushing valve, and it and the supporting use of downhole packer can improve the production status of oil well, improve the pumpingh well operating efficiency, improve the well-flushing situation of pumpingh well simultaneously, prevent the flushing fluid polluted reservoir, improve the well-flushing efficient of pumpingh well.
The purpose of this utility model is to realize like this, it is by sealing ring 1, well washing hole 2, toroidal cavity 3, top connection 4, pressure ring 5, valve seat 6, spacer 7, main body 8, piston 9, bottom valve body 10, lining 11, magnetic core overflowing device 12, valve ball 13, foot valve seat 14, foot valve seat joint 15, spring 16, packing ring 17, reconcile ring 18, lower contact 19 is formed, be connected with top connection 4 and lower contact 19 at the two ends of flushing valve main body 8, bottom valve body 10 and well-flushing piston 9 are housed in the main body 8, piston 9 tops and main body 8 looping cavitys 3, this chamber communicates with well washing hole 2 on the main body 8, magnetic core overflowing device 12 and foot valve seat 14 are housed in the bottom valve body 10, valve ball 13 is housed between the two, foot valve seat joint 15 is threaded with bottom valve body 10, the bottom is equipped with and is reconciled ring 18 in the main body 8, piston 9 and 18 on conciliation ring are equipped with spring 16, the lower end of spring 16 is packing rings 17, the piston top is a valve seat 6, valve seat 6 tops are pressure rings 5, and spacer 7 is housed in toroidal cavity 3, are lining 11 in the main body 8.
Operating principle: in the pumpingh well normal productive process, the well-flushing piston withstands on the vacant seat under the effect of spring, make valve be in closed condition, the valve ball of bottom valve breaks away from bottom valve and moves up under the effect of well intracavity liquid pressure, by the absorption of the magnetic core of top stream device, bottom valve is in normally open when the oil well ordinary production.When oil well needs well-flushing, flushing fluid enters in the well from oil, sleeve pipe annular space, because there is the existence of packer the pumpingh well bottom, the pressure of flushing fluid acts on the well-flushing piston, and the pressure of its elastic force that overcomes spring and well intracavity liquid is moved downward, flushing valve is opened, flushing fluid just enters in the flushing valve, and the valve ball of bottom valve overcomes magnetic core gravitation under flushing fluid pressure, drop at the bottom of the bottom valve valve on, bottom valve cuts out, and flushing fluid just upwards goes out from the pipe internal return through oil well pump.Well-flushing finishes, and moves on the piston valve cuts out, and bottom valve is opened, and pumpingh well returns to normal production.Spring give that tight power is lowered to concentration in the oil well according to flushing valve and the fluid pressure of pit shaft is reconciled, to realize the optimum state of well-flushing.
Characteristics of the present utility model are and the supporting use of downhole packing, there is the existence of packer the bottom, the pressure of flushing fluid acts on the well-flushing piston, the pressure of its elastic force that overcomes spring and well intracavity liquid is moved downward, flushing valve is opened, flushing fluid just enters in the flushing valve, go out from the pipe internal return through oil well pump, can improve the production status of oil well, improve the pumpingh well operating efficiency, increase oil well output, improve the well-flushing situation of pumpingh well simultaneously, prevent the flushing fluid polluted reservoir, improve well-flushing efficient, prolong time between well-flushings.
Fig. 1 is a structural representation of the present utility model.
Below in conjunction with accompanying drawing the utility model is further described:
Find out from Fig. 1 structural representation, this flushing valve concrete structure is as follows: well washing hole 2 is arranged at main body 8 tops that are connected with top connection 4 and lower contact 19, valve seat 6 is equipped with in main body 8 inside, pressure ring 5 is arranged at valve seat 6 tops, main body 8 inwalls are equipped with spacer 7 and lining 11, well-flushing piston 9 tops and main body 8 looping cavitys 3, this chamber communicates with well washing hole 2, well-flushing piston 9 bottoms and lining 11 are slidingly matched, and two pairs of sealing rings 1 are housed, the bottom of well-flushing piston 9 is threaded with bottom valve body 10, be connected between magnetic core overflowing device 12 and foot valve seat 14, two parts dress valve ball 13 in the bottom valve body 10, the lower end of the valve body 10 foot valve seat joint 15 that is threaded; The lower thread of main body 8 connects reconciles ring 18, and packing ring 17 is housed on it, and spring 16 is loaded between well-flushing piston 9 lower ends and the packing ring 17.
Claims (4)
1. the utility model relates to the downhole tool that uses on a kind of oilfield, particularly a kind of down-hole flushing valve that is connected on the tubing string, it is by sealing ring (1), well washing hole (2), toroidal cavity (3), top connection (4), pressure ring (5), valve seat (6), spacer (7), main body (8), piston (9), bottom valve body (10), lining (11), magnetic core overflowing device (12), valve ball 13, foot valve seat (14), foot valve seat joint (15), spring (16), packing ring (17), reconcile ring (18), lower contact (19) is formed, it is characterized in that: main body (8) internal upper part that is connected with top connection (4) and lower contact (19) is equipped with valve seat (6) and well-flushing piston (9), well-flushing piston (9) top and main body (8) constitute ring cavity (3), and this chamber is gone up well washing hole (2) with main body (8) and communicated; Bottom valve body (10) bottom is connected with foot valve seat joint (15), and magnetic core overflowing device (12) and foot valve seat (14) are housed in the bottom valve body (10), and valve ball (13) is housed between the two; The interior bottom of main body (8) is equipped with and is reconciled ring (18), between well-flushing piston (9) and conciliation ring (18) spring (16) is housed.
2. flushing valve according to claim 1 is characterized in that: between valve seat (6) and main body (8) pressure ring (5) is housed.
3. flushing valve according to claim 1 is characterized in that: in the ring cavity that well-flushing piston (9) top and main body (8) constitute neck bush (11) is housed.
4. according to the flushing valve of claim 1, it is characterized in that: sealing ring (1) is equipped with in well-flushing piston (9) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97224366 CN2306312Y (en) | 1997-08-15 | 1997-08-15 | Well washing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97224366 CN2306312Y (en) | 1997-08-15 | 1997-08-15 | Well washing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2306312Y true CN2306312Y (en) | 1999-02-03 |
Family
ID=33938740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97224366 Expired - Fee Related CN2306312Y (en) | 1997-08-15 | 1997-08-15 | Well washing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2306312Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101358515B (en) * | 2007-07-31 | 2011-09-07 | 中国石油天然气股份有限公司 | Well cleanout shunt |
| CN101769141B (en) * | 2009-01-01 | 2012-11-14 | 黄石市汉威石油电子机械设备有限责任公司 | Localization hot washing device |
| CN103410462A (en) * | 2013-08-27 | 2013-11-27 | 山东宝世达石油装备制造有限公司 | Hollow-rod well washing check valve |
| CN108119077A (en) * | 2016-11-29 | 2018-06-05 | 中国石油天然气股份有限公司 | A kind of Operating Pressure flushing valve |
-
1997
- 1997-08-15 CN CN 97224366 patent/CN2306312Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101358515B (en) * | 2007-07-31 | 2011-09-07 | 中国石油天然气股份有限公司 | Well cleanout shunt |
| CN101769141B (en) * | 2009-01-01 | 2012-11-14 | 黄石市汉威石油电子机械设备有限责任公司 | Localization hot washing device |
| CN103410462A (en) * | 2013-08-27 | 2013-11-27 | 山东宝世达石油装备制造有限公司 | Hollow-rod well washing check valve |
| CN108119077A (en) * | 2016-11-29 | 2018-06-05 | 中国石油天然气股份有限公司 | A kind of Operating Pressure flushing valve |
| CN108119077B (en) * | 2016-11-29 | 2020-05-08 | 中国石油天然气股份有限公司 | Well washing valve for under-pressure operation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |