CN2861472Y - Sand-discharging well-cleaning valve of water-flooding pipe string - Google Patents
Sand-discharging well-cleaning valve of water-flooding pipe string Download PDFInfo
- Publication number
- CN2861472Y CN2861472Y CN 200520021258 CN200520021258U CN2861472Y CN 2861472 Y CN2861472 Y CN 2861472Y CN 200520021258 CN200520021258 CN 200520021258 CN 200520021258 U CN200520021258 U CN 200520021258U CN 2861472 Y CN2861472 Y CN 2861472Y
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- valve seat
- inner core
- sand
- valve
- top connection
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Abstract
Disclosed is a sand-discharging wash-down valve for affusion pipe columns, which is mainly used to solve the problems that the valve seat of the existing pipe columns is easily adhered to big particles of polymer or impurities and is buried in sand. It is characterized in that the inner walls below the upper connector (1) are connected with the inner canister (5), whose bottom is fixed with the block ring with hole (6), the top of the block ring (6) is fixed with the plastic bowl (7), and the bottom of the valve seat (2) is connected with the screen pipe (9) whose bottom is provided with a block disk (16). The valve seat is avoided being adhered to big particles of polymer or impurities by the sand-discharging wash-down valve for affusion pipe columns, thereby preventing the valve seat effectively from being buried in sand.
Description
Technical field:
The utility model relates to a kind of downhole tool used in the oil recovery field, oil field, especially water injection string sediment outflow flushing valve.
Background technology:
In the oil-field flooding process, down-hole string is connected with one way valve, and this valve is made up of valve seat and valve ball, when normal well-flushing, easily adhere to some oarse-grained polymer or impurity on the valve seat, make between valve ball and the valve seat poorly sealedly and produce and leak, influence normal well-flushing; When anti-flushing well, valve seat is buried by the fine sand in the water easily, causes one way valve to work, can not well-flushing.
The utility model content:
Easily adhere to the deficiency that oarse-grained polymer or impurity and sand bury in order to overcome existing tubing string valve seat, the utility model provides a kind of water injection string sediment outflow flushing valve, this water injection string sediment outflow flushing valve has avoided valve seat to adhere to oarse-grained polymer or impurity, has prevented that effectively valve seat sand from burying phenomenon.
The technical solution of the utility model is: this water injection string sediment outflow flushing valve comprises top connection, valve seat and valve ball, be connected with urceolus between top connection and the valve seat, be connected with inner core on the inwall of top connection lower end, the inner core lower end is fixed with baffle ring with holes, baffle ring upper fixed glue bowl, valve seat lower end are connected with the screen casing of bottom band block plate.
Above-mentioned inner core sidewall has water hole and stage, and water hole is opened above stage, is equipped with sliding sleeve between the inner core of urceolus and stage top, between sliding sleeve and the top connection spring is arranged, and seals between sliding sleeve and the inner core; Have through hole on the sidewall of the inner core of glue bowl lateral surface correspondence; Be fixed with in the top connection with the protective cover of aquaporin.
The utlity model has following beneficial effect: owing to take such scheme, screen casing can intercept oarse-grained polymer or impurity, avoids it to stick on the valve seat, and the sand setting in the well drops on glue bowl top in addition, can not fall on valve seat and the valve ball, prevent that effectively valve seat sand from burying phenomenon.
Description of drawings:
Accompanying drawing 1 is a structure sectional view of the present utility model.
1-top connection among the figure, the 2-valve seat, the 3-valve ball, the 4-urceolus, the 5-inner core, the 6-baffle ring, 7-glue bowl, the 8-sliding sleeve, the 9-screen casing, the 10-water hole, the 11-stage, the 12-through hole, the 13-protective cover, 14-crosses aquaporin, 15-spring, 16-block plate.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
By shown in Figure 1, this water injection string sediment outflow flushing valve comprises top connection 1, valve seat 2 and valve ball 3, be fixed with in the top connection 1 with the protective cover 13 of aquaporin 14, be connected with urceolus 4 between top connection 1 and the valve seat 2, be connected with inner core 5 on the top connection 1 lower end inwall, inner core 5 sidewalls have water hole 10 and stage 11, water hole 10 is opened above stage 11, be equipped with sliding sleeve 8 between the inner core 5 of urceolus 4 and stage 11 tops, between sliding sleeve 8 and the top connection 1 spring 15 arranged, sealing between sliding sleeve 8 and the inner core 5, flushing fluid promotion sliding sleeve 8 moves up during well-flushing, expose the water hole 10 on the inner core 5, after well-flushing finished, sliding sleeve 8 is homing under spring 15 effects.Inner core 5 lower ends are fixed with baffle ring with holes 6, and the sand setting in the baffle ring 6 upper fixed glue bowls 7, well can drop on glue bowl 7 tops, and can not fall on valve seat 2 and the valve ball 3, has prevented that effectively valve seat 2 sand from burying phenomenon; Have through hole 12 on the sidewall of the inner core 5 of glue bowl 7 lateral surface correspondences, increased area of passage; Valve seat 2 lower ends are connected with the screen casing 9 of bottom band block plate 16, and screen casing 9 and block plate 16 can intercept oarse-grained polymer or impurity, avoid it to stick on the valve seat 2.
Claims (4)
1, a kind of water injection string sediment outflow flushing valve, comprise top connection (1), valve seat (2) and valve ball (3), be connected with urceolus (4) between top connection (1) and the valve seat (2), it is characterized in that: be connected with inner core (5) on the inwall of top connection (1) lower end, inner core (5) lower end is fixed with baffle ring with holes (6), baffle ring (6) upper fixed glue bowl (7), valve seat (2) lower end are connected with the screen casing (9) of bottom band block plate (16).
2, water injection string sediment outflow flushing valve according to claim 1, it is characterized in that: inner core (5) sidewall has water hole (10) and stage (11), water hole (10) is opened in stage (11) top, be equipped with sliding sleeve (8) between the inner core (5) of urceolus (4) and stage (11) top, between sliding sleeve (8) and the top connection (1) spring (15) is arranged, sealing between sliding sleeve (8) and the inner core (5).
3, water injection string sediment outflow flushing valve according to claim 1 and 2 is characterized in that: have through hole (12) on the sidewall of the inner core (5) of glue bowl (7) lateral surface correspondence.
4, water injection string sediment outflow flushing valve according to claim 1 and 2 is characterized in that: be fixed with in the top connection (1) with the protective cover (13) of aquaporin (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520021258 CN2861472Y (en) | 2005-07-18 | 2005-07-18 | Sand-discharging well-cleaning valve of water-flooding pipe string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520021258 CN2861472Y (en) | 2005-07-18 | 2005-07-18 | Sand-discharging well-cleaning valve of water-flooding pipe string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2861472Y true CN2861472Y (en) | 2007-01-24 |
Family
ID=37659101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520021258 Expired - Fee Related CN2861472Y (en) | 2005-07-18 | 2005-07-18 | Sand-discharging well-cleaning valve of water-flooding pipe string |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2861472Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401527A (en) * | 2016-09-28 | 2017-02-15 | 中国石油天然气股份有限公司 | Well washing leakage and loss control device |
| WO2017124978A1 (en) * | 2016-01-20 | 2017-07-27 | 中国石油化工股份有限公司 | Novel sliding sleeve |
-
2005
- 2005-07-18 CN CN 200520021258 patent/CN2861472Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017124978A1 (en) * | 2016-01-20 | 2017-07-27 | 中国石油化工股份有限公司 | Novel sliding sleeve |
| US11885201B2 (en) | 2016-01-20 | 2024-01-30 | China Petroleum & Chemical Corporation | Sliding sleeve |
| CN106401527A (en) * | 2016-09-28 | 2017-02-15 | 中国石油天然气股份有限公司 | Well washing leakage and loss control device |
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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 |