CN2376533Y - Constant flow type eccentric making-up water sealer - Google Patents
Constant flow type eccentric making-up water sealer Download PDFInfo
- Publication number
- CN2376533Y CN2376533Y CN 99223853 CN99223853U CN2376533Y CN 2376533 Y CN2376533 Y CN 2376533Y CN 99223853 CN99223853 CN 99223853 CN 99223853 U CN99223853 U CN 99223853U CN 2376533 Y CN2376533 Y CN 2376533Y
- Authority
- CN
- China
- Prior art keywords
- water distribution
- water
- distribution mouth
- plug
- blanking plug
- 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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- Control Of Fluid Pressure (AREA)
Abstract
The utility model discloses a constant-flow type eccentric water-distribution plug. The interior of the plug is provided with a sliding water-distribution nozzle. A constant-pressure spring is arranged between the water-distribution nozzle and the plug. The lower half part of the water-distribution nozzle is provided with a water inlet hole. The lower part of the plug is provided with a water inlet slit which is corresponding to the water inlet hole, and then a water inlet channel is formed. Through the pressure reduction of the water inlet channel and the combined action of the constant-pressure spring, the difference between the water injection pressure and the difference is changed in a large range. The differential pressure at both ends of the water-distribution nozzle is constant, and thus the purpose of constant-flow water distribution is achieved.
Description
The utility model relates to the blanking plug of the employed eccentric water allocater of a kind of oil gas field seperated layer water injection, has exactly provided a kind of constant-current eccentric water distribution plug.
At present, domestic oil gas field is extensive use of eccentric water allocater and carries out seperated layer water injection, commonly used is KPX-20A type and two kinds of throttle type blanking plugs of KPX-20B type, its operating principle is to realize the water distribution quantity on the stratum that it is controlled by a fixedly water nozzle that has the constant current hole under water injection pressure and strata pressure comprehensive function, should be fixedly the eccentric water distribution plug of water nozzle change and each layer variation when unbalanced at strata pressure, even adjustment water injection pressure, also can not satisfy effective enforcement of waterflood project, need test frequently, change water nozzle, its workload is big, waste time and energy, and to water filling, oil extraction operation all has adverse influence.
The utility model discloses a kind of constant-current eccentric water distribution plug, and purpose has been intended to solve the problem that above-mentioned blanking plug water distribution quantity changes with water injection pressure and strata pressure.
Concrete solution of the present utility model is as follows: the water distribution mouth device is the connection that is slidingly matched in blanking plug, can slide up and down along its inwall, the water distribution mouth is a hollow tubular, caliber is a stepped ramp type less than caliber in the Lower Half in its first half, the Lower Half tube wall has the inlet opening, the level pressure spring be located at the top of water distribution mouth and blanking plug between, on the side tube wall of the bottom of blanking plug, have several water inlet slits with respect to water distribution mouth position, constitute intake tunnel with water distribution mouth inlet opening.The pressure difference at the initial deflection decision water distribution mouth two ends of level pressure spring, the water injection pressure of blanking plug makes the difference of the hydraulic pressure of the hydraulic pressure that enters the water nozzle inner chamber and exocoel remain constant through the depressurization of intake tunnel, otherwise the water distribution mouth slides under level pressure spring and the comprehensive function of interior exocoel differential water pressures up or down, reduce or increase the passage section of intake tunnel, to regulate the pressure of inner chamber, exocoel pressure reduction is constant in realizing, carries out the constant current water distribution.
Good effect of the present utility model is: adopt slip water distribution mouth structure, by intake tunnel decompression and the comprehensive function of level pressure spring, make the difference of water injection pressure and strata pressure in very large range change, it is constant that water distribution mouth two ends pressure reduction keeps, thereby reach the purpose of constant current water distribution.
Fig. 1 is the utility model structure principle chart.
Further specify the utility model below in conjunction with accompanying drawing: with reference to Fig. 1, device has tubulose water distribution mouth 3 in blanking plug 7, can slide up and down along its inwall, level pressure spring 2 is arranged on the top of water distribution mouth 3, the other end is connected with adjusting bolt 1, regulate the top that bolt 1 is screwed in blanking plug 3, by adjusting the elastic force of bolt 1 fine-tuning level pressure spring 2, the first half internal diameter of water distribution mouth 3 is less than the Lower Half internal diameter, on the Lower Half tube wall of water distribution mouth 3, have inlet opening 5, have eight water inlet slits 6 in the bottom of blanking plug 7, corresponding with inlet opening 5, on the internal diameter of blanking plug 7, be provided with limited step 4, water distribution mouth 3 is slided within the specific limits.
Claims (3)
1, a kind of constant-current eccentric water distribution plug, in blanking plug (7), be provided with water distribution mouth (3), it is characterized in that: water distribution mouth (3) device is the connection that is slidingly matched in blanking plug (7), can slide up and down along its inwall, water distribution mouth (3) is a hollow tubular, caliber is a stepped ramp type less than caliber in the Lower Half in its first half, the Lower Half tube wall has inlet opening (5), level pressure spring (2) be located at water distribution mouth (3) and blanking plug (7) between, on the side tube wall of the bottom of blanking plug (7), have several water inlet slits (6), with inlet opening (5) the formation intake tunnel of water distribution mouth (5) with respect to water distribution mouth (3) position.
2, blanking plug according to claim 1, it is characterized in that: level pressure spring (2) is arranged on the top of water distribution mouth (3), the other end is connected with adjusting bolt (1), regulates the top that bolt (1) is screwed in blanking plug (3), by adjusting the elastic force of bolt (1) fine-tuning level pressure spring (2).
3, according to claim 1 and 2 described blanking plugs, it is characterized in that: on the internal diameter of blanking plug (7), be provided with limited step (4), water distribution mouth (3) is slided in certain limit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99223853 CN2376533Y (en) | 1999-05-18 | 1999-05-18 | Constant flow type eccentric making-up water sealer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99223853 CN2376533Y (en) | 1999-05-18 | 1999-05-18 | Constant flow type eccentric making-up water sealer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2376533Y true CN2376533Y (en) | 2000-05-03 |
Family
ID=34014013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99223853 Expired - Fee Related CN2376533Y (en) | 1999-05-18 | 1999-05-18 | Constant flow type eccentric making-up water sealer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2376533Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111364957A (en) * | 2020-04-09 | 2020-07-03 | 中国石油天然气股份有限公司 | Miniaturized constant-current water distribution structure and detection device thereof |
-
1999
- 1999-05-18 CN CN 99223853 patent/CN2376533Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111364957A (en) * | 2020-04-09 | 2020-07-03 | 中国石油天然气股份有限公司 | Miniaturized constant-current water distribution structure and detection device thereof |
| CN111364957B (en) * | 2020-04-09 | 2024-03-01 | 中国石油天然气股份有限公司 | Miniaturized constant-current water distribution structure and detection device thereof |
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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 |