CN2415158Y - Fixed volume plug for separate zone water injection - Google Patents
Fixed volume plug for separate zone water injection Download PDFInfo
- Publication number
- CN2415158Y CN2415158Y CN 99257648 CN99257648U CN2415158Y CN 2415158 Y CN2415158 Y CN 2415158Y CN 99257648 CN99257648 CN 99257648 CN 99257648 U CN99257648 U CN 99257648U CN 2415158 Y CN2415158 Y CN 2415158Y
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- China
- Prior art keywords
- sealing ring
- adjusting rod
- water injection
- water
- adjusting
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- 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 quantitative blanking plug with layered water injection. The utility model is composed of a balance plunger (1), a sealing ring (2), a balance cylinder sleeve (3), a sealing ring (4), a spring (5), an adjusting rod (6), a spring support seat (7), a water faucet (8), a sealing ring (9), a diversion press cap (10), a main body (11), and an original positioning device (12). The adjusting rod (6) is provided with limit steps so as to avoid a cone and the water faucet (8) from colliding into pieces. An adjusting range is widened through using the method of adjusting the area of an adjusting plunger. The utility model has the advantages of long service life and high work reliability.
Description
The utility model relates to the separated-zone water infection oil field field, specifically is the quantitative blanking plug of a kind of seperated layer water injection.
As everyone knows, pressure oscillation is big in the oil-field flooding process, cause the mine water quantitative changeization, can not satisfy the oil field development demand, so quantitative injection is necessary, prior art Chinese patent 9,722,596 3.5 is exactly a kind of general quantitative blanking plug of eccentric center water-distributing down that advances, and there is following problems in actual applications in this quantitative blanking plug.Because the cone of valve rod (17) adopts fragile material manufacturings such as pottery or carbide alloy with nozzle (20), when pressure oscillation cone and nozzle (20) repeatedly repeated impact cause broken inefficacy, lose quantitative effect, application life weak point, functional reliability is poor.Only regulate flow with regulating spring, adjustable range is narrow, and starting pressure reduction height can't satisfy the requirement of different injection well (layer).
The utility model purpose is exactly at above-mentioned weak point, and it is big to design a kind of adjustable range, long service life, the quantitative blanking plug of the seperated layer water injection that functional reliability is high.
The utility model is achieved by the following technical solution, and adds a limited step on adjusting rod (6), makes between frangible water spray (8) and adjusting rod (6) cone to have a little gap, does not contact all the time.At a former location device (12) and main body (a 11) dummy cylinder of screwed connection (3), and establish sealing ring (4), balance plunger (1) is contained in the dummy cylinder (3), and establishes sealing ring (2), and balance plunger (1) is used screwed connection with adjusting rod (6).Dummy cylinder (3) is the different serial size of external diameter same inner diameter, can change as required.Balance plunger (1) is the different serial size of diameter, can change as required.
The utility model functional reliability height prolongs 3-6 application life doubly, and adjustable range is big, can satisfy the needs of different injection pressure reduction oil reservoir.
Specify as follows in conjunction with the accompanying drawings:
Accompanying drawing 1 expression the utility model structural representation, as can be seen from the figure:
Seperated layer water injection is quantitatively stopped up and is made up of balance plunger (1), sealing ring (2), dummy cylinder (3), sealing ring (4), spring (5), adjusting rod (6), spring fastening (7), water nozzle (8), sealing ring (9), water conservancy diversion pressure cap (10), main body (11), former location device (12).
Accompanying drawing 2 expression Chinese patents 97225963.5 structural representations, as can be seen from Figure:
This design is made up of spring collar (13), pad (14), spring (15), sealing ring (16), valve rod (17), splicing sleeve (18), sealing ring (19), nozzle (20), sealing ring (21), valve body (22), import pressure cap (23), former location device (24).
The quantitative blanking plug seat of seperated layer water injection is gone in the eccentric orfice of eccentric injection mandrel, pressure in the well is separated by main body (11) outer sealing ring and oil reservoir, borehole pressure promotes the water space that goes out that balance plunger (1) is used for changing adjusting (6) front end cone and water nozzle (8) by the pressure guide hole of former location device (12), the control water yield.Inject and inject oil reservoir by the gap of adjusting rod (6) front end cone and water nozzle (8) after water dams by water conservancy diversion pressure cap (10) aperture water nozzle (8).The preceding pressure of water nozzle when water injection pressure increases (8) increases, balance plunger (1) is gone up end pressure and is equated with the preceding pressure of water nozzle (8), balance plunger (1) motive force downwards increases compression spring (5), make the cone gap smaller of water nozzle (8) and adjusting rod, increase crushing, keep original water injection rate, otherwise when water injection pressure reduces, reach the purpose of constant amount of water.The oil-field flooding pressure oscillation is big and violent, adjusting rod when pressure changes (6) and spring (5) are in fact formed a high frequency oscillator system, the adjusting rod of dither (6) clashes into to water nozzle (8) fast, adjusting rod (6) limited step makes cone not contact with water nozzle (8), thereby avoided the generation of the broken phenomenon of water nozzle (8), improved reliability and application life.
In the oil-field flooding process, because each reservoir physical property difference, suction pressure reduction is ever-changing, widely different, and the control pressure differential range requires various, uses the plunger of different-diameter and spring to cooperate, and can satisfy the requirement to different oil-bearing stratum floodings.
Claims (1)
1, the quantitative blanking plug of a kind of seperated layer water injection is made of balance plunger (1), sealing ring (2), dummy cylinder (3), sealing ring (4), spring (5), adjusting rod (6), spring fastening (7), water nozzle (8), sealing ring (9), water conservancy diversion pressure cap (10), main body (11), former location device (12); It is characterized in that: former location device (12) and main body (11) be with screwed connection dummy cylinder (3), and establish sealing ring (4), and balance plunger (1) is packed in the dummy cylinder (3), is provided with sealing ring (2), and balance plunger (1) is used screwed connection with adjusting rod (6); Dummy cylinder (3) is the different serial size of external diameter same inner diameter, and balance plunger (1) is the different serial size of diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99257648 CN2415158Y (en) | 1999-12-24 | 1999-12-24 | Fixed volume plug for separate zone water injection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99257648 CN2415158Y (en) | 1999-12-24 | 1999-12-24 | Fixed volume plug for separate zone water injection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2415158Y true CN2415158Y (en) | 2001-01-17 |
Family
ID=34040483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99257648 Expired - Fee Related CN2415158Y (en) | 1999-12-24 | 1999-12-24 | Fixed volume plug for separate zone water injection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2415158Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327105C (en) * | 2005-02-04 | 2007-07-18 | 赵学增 | Zonal water injection contanst flow packer |
| CN108999601A (en) * | 2018-07-26 | 2018-12-14 | 中国石油天然气股份有限公司 | A kind of chemical flooding dispensing well zonal flow rate deployment device and concocting method |
-
1999
- 1999-12-24 CN CN 99257648 patent/CN2415158Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327105C (en) * | 2005-02-04 | 2007-07-18 | 赵学增 | Zonal water injection contanst flow packer |
| CN108999601A (en) * | 2018-07-26 | 2018-12-14 | 中国石油天然气股份有限公司 | A kind of chemical flooding dispensing well zonal flow rate deployment device and concocting method |
| CN108999601B (en) * | 2018-07-26 | 2021-04-13 | 中国石油天然气股份有限公司 | Chemical flooding separate injection well layered flow rate allocation method |
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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 |