CN204627569U - Anti-backflow bridge type eccentric water distributor - Google Patents
Anti-backflow bridge type eccentric water distributor Download PDFInfo
- Publication number
- CN204627569U CN204627569U CN201520243686.7U CN201520243686U CN204627569U CN 204627569 U CN204627569 U CN 204627569U CN 201520243686 U CN201520243686 U CN 201520243686U CN 204627569 U CN204627569 U CN 204627569U
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- Prior art keywords
- bridge type
- type eccentric
- side down
- hole
- tells
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 238000002347 injection Methods 0.000 claims abstract description 82
- 239000007924 injection Substances 0.000 claims abstract description 82
- 239000012530 fluid Substances 0.000 claims abstract description 20
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 4
- 210000002445 nipple Anatomy 0.000 claims description 21
- 239000004576 sand Substances 0.000 abstract description 11
- 238000012360 testing method Methods 0.000 abstract description 4
- 238000005406 washing Methods 0.000 abstract 1
- 238000011010 flushing procedure Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- IXSZQYVWNJNRAL-UHFFFAOYSA-N etoxazole Chemical compound CCOC1=CC(C(C)(C)C)=CC=C1C1N=C(C=2C(=CC=CC=2F)F)OC1 IXSZQYVWNJNRAL-UHFFFAOYSA-N 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The utility model provides a prevent returning and tell eccentric injection mandrel of bridge type, including last adapter sleeve (2) that from the top down connected gradually, working barrel main part (4) and lower adapter sleeve (5), be equipped with side direction hole (12) and water injection hole (13) in the lateral wall of working barrel main part (4), fluid passage (14) can loop through side direction hole (12) and water injection hole (13) and this prevent returning and tell the outside intercommunication of eccentric injection mandrel of bridge type, be equipped with shutoff ball (9) in side direction hole (12), shutoff ball (9) can be sealed with side direction hole (12). The backflow-preventing bridge-type eccentric water distributor has the functions of a conventional bridge-type eccentric water distributor, and can prevent formation sand from entering from lateral holes of the water distributor when a water injection well stops injecting, so that the influence on later-stage water injection, well washing and testing is avoided, and the backflow-preventing bridge-type eccentric water distributor is particularly suitable for the stratified water injection of a slight sand outlet well.
Description
Technical field
The utility model relates to Petroleum Production technical field, and particularly a kind of anti-returning tells bridge type eccentric injection mandrel.
Background technology
At present, the injection well downhole flow regulator that most domestic separated-zone water infection oil field adopts mostly is bridge type eccentric injection mandrel, and this injection well downhole flow regulator is meeting water filling simultaneously, and injection well downhole flow regulator main body, with side direction flow channels, when a certain water filling layer is tested, does not affect the injection of other each layer water yield.But this injection well downhole flow regulator exists subject matter, when the well implementing dispensing slightly shakes out, stop the reasons such as note due to water injection well, reservoir sand easily enters from injection well downhole flow regulator side down hole, thus causes adjustable blanking plug sand plug in injection well downhole flow regulator to affect later stage water filling, well-flushing and test.
Chinese patent CN 202117647U, January 18 2012 publication date, disclose one " well-cleanout anti-diversion bridge type eccentric water distributor ", this well-cleanout anti-diversion bridge type eccentric water distributor comprises top connection, top connection lower thread connects upper joint sleeve, upper joint sleeve lower thread connects main body, upper joint sleeve is built with centralizer body, centralizer body is fixedly connected with main body, it is characterized in that: main body has inclined hole, inclined hole is built-in with anti-shunting valve seat, anti-shunting valve seat wall has through hole, anti-shunting valve seat is built-in with anti-shunting piston, anti-shunting piston lower portion is threaded anti-shunting valve rod, spring is provided with below anti-shunting valve rod, the body outer wall that spring is corresponding has oblique through hole, lower body part is threaded lower joint sleeve, lower joint sleeve lower thread connects lower contact.This instrument can prevent well-flushing water from entering oil pipe by the inclined hole of injection well downhole flow regulator, similar with function of the present invention, but its structure design, processing technology more complicated.
Utility model content
In order to solve the baroque problem of injection well downhole flow regulator, the utility model provides a kind of anti-returning and tells bridge type eccentric injection mandrel, this is anti-returns and tells bridge type eccentric injection mandrel except while possessing conventional bridge type eccentric injection mandrel function, when water injection well stops note, also can prevent reservoir sand from entering from injection well downhole flow regulator side down hole, avoid affecting later stage water filling, well-flushing and test, anti-the returning of this injection well downhole flow regulator tells function when also making well stop note simultaneously, the water filling layer of its correspondence is made to be in air-tight state, namely stratum is in stable state, thus prevent reservoir sand from entering on oil jacket annular packer from stratum, avoid sand pipe laying post or well-flushing passage, cause the accidents such as overhaul.
The utility model solves the technical scheme that its technical problem adopts: a kind of anti-returning tells bridge type eccentric injection mandrel, comprise the upper joint sleeve, seating nipple main body and the lower joint sleeve that connect successively from the top down, described anti-returning tells the fluid passage that in bridge type eccentric injection mandrel, formation is longitudinally through, side down hole and water injection hole is provided with in the sidewall of seating nipple main body, the ft connection telling bridge type eccentric injection mandrel anti-ly can be returned by side down hole and water injection hole and this successively in fluid passage, be provided with ball sealer in side down hole, side down hole can seal by ball sealer.
The axis of side down hole is vertically arranged, and the lower end of side down hole is communicated with fluid passage, and water injection hole is between the two ends of side down hole.
Containing Duan Hexia aperture, upper aperture section in side down hole, this is provided with circular cone between aperture section and this lower aperture section, ball sealer can coordinate with circular cone and sealed by side down hole, and circular cone is between water injection hole and the lower end of side down hole.
The upper end of upper joint sleeve is provided with top connection, and top connection is tubular, and upper joint sleeve is threaded with top connection.
Be arranged with the centralizer body of tubular in upper joint sleeve, upper end and the top connection of centralizer body connect and fix, and the lower end of centralizer body is connected and fixed by the upper end of staple and seating nipple main body.
The two ends up and down of seating nipple main body are equipped with external screw thread, and the lower end of upper joint sleeve is provided with internal thread, and the upper end of lower joint sleeve is provided with internal thread.
The lower end of lower joint sleeve is provided with lower contact, and lower contact is tubular, and lower joint sleeve is threaded with lower contact.
The lower end of seating nipple main body is fixedly connected with the support of tubular, and the upper end of support is positioned at lower joint sleeve, and the lower end of support is positioned at lower contact.
Be arranged with the guide way of tubular in support, the external diameter of guide way equals the internal diameter of support, and guide way and support are connected and fixed by locating pin.
The axis of the axis runout fluid passage of side down hole.
The beneficial effects of the utility model are, this is anti-returns and tells bridge type eccentric injection mandrel except while possessing conventional bridge type eccentric injection mandrel function, when water injection well stops note, also can prevent reservoir sand from entering from injection well downhole flow regulator side down hole, avoid affecting later stage water filling, well-flushing and test, anti-the returning of this injection well downhole flow regulator tells function when also making well stop note simultaneously, the water filling layer of its correspondence is made to be in air-tight state, namely stratum is in stable state, thus prevent reservoir sand from entering on oil jacket annular packer from stratum, avoid sand pipe laying post or well-flushing passage, cause the accidents such as overhaul, be particularly useful for well seperated layer water injection of slightly shaking out.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 prevents returning the assembling drawing telling bridge type eccentric injection mandrel.
Fig. 2 is the enlarged diagram at A position in Fig. 1.
Wherein 1. top connections, 2. upper joint sleeve, 3. centralizer body, 4. seating nipple main body, 5. lower joint sleeve, 6. support, 7. guide way, 8. lower contact, 9. ball sealer, 10. staple, 11. locating pins, 12. side down holes, 13. water injection holes, 14. fluid passages, 15. circular cones.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.
A kind of anti-returning tells bridge type eccentric injection mandrel, comprise the upper joint sleeve 2 be tightly connected successively from the top down, seating nipple main body 4 and lower joint sleeve 5, upper joint sleeve 2, seating nipple main body 4 and lower joint sleeve 5 are tubular, upper joint sleeve 2, seating nipple main body 4 and lower joint sleeve 5 are coaxially arranged, thus make described anti-returning tell the fluid passage 14 that in bridge type eccentric injection mandrel, formation is longitudinally through, side down hole 12 and water injection hole 13 is provided with in the sidewall of seating nipple main body 4, fluid passage 14 can prevent returning the ft connection telling bridge type eccentric injection mandrel with this by side down hole 12 and water injection hole 13 successively, ball sealer 9 is provided with in side down hole 12, side down hole 12 can seal by ball sealer 9, as depicted in figs. 1 and 2.
In the present embodiment, the axis of the axis runout fluid passage 14 of side down hole 12.Concrete, the axis being parallel of side down hole 12 is in the axis of fluid passage 14, and the axis of side down hole 12 is vertically arranged, and the lower end of side down hole 12 is communicated with fluid passage 14, water injection hole 13 is between the two ends of side down hole 12, and the axis of water injection hole 13 is arranged in the horizontal direction.Containing Duan Hexia aperture, upper aperture section in side down hole 12, on this, the internal diameter of aperture section is greater than the internal diameter of this lower aperture section, this forms top circular cone 15 down between aperture section and this lower aperture section, ball sealer 9 can coordinate with circular cone 15 thus be sealed by side down hole 12, circular cone 15 between water injection hole 13 and the lower end of side down hole 12, as depicted in figs. 1 and 2.Angle between circular cone 15 and horizontal plane is 45 °.Ball sealer 9 can also between water injection hole 13 and the upper end of side down hole 12, and now, fluid passage 14 can prevent returning the ft connection telling bridge type eccentric injection mandrel with this by side down hole 12 and water injection hole 13 successively.
Ball sealer 9 is steel ball, and when ball sealer 9 is in side down hole 12 and between the upper end of side down hole 12 and water injection hole 13, fluid passage 14 can prevent returning the ft connection telling bridge type eccentric injection mandrel with this by side down hole 12 and water injection hole 13 successively.When ball sealer 9 is in side down hole 12 and between the lower end of side down hole 12 and water injection hole 13, ball sealer 9 and circular cone 15 are tightly connected, linear sealing can be realized between ball sealer 9 and circular cone 15, fluid passage 14 can not prevent returning the ft connection telling bridge type eccentric injection mandrel with this, thus realizes preventing returning telling function.
Concrete, the upper end of upper joint sleeve 2 is provided with top connection 1, and top connection 1 is tubular, and upper joint sleeve 2 is threaded with top connection 1.Be arranged with the centralizer body 3 of tubular in upper joint sleeve 2, upper end and the top connection 1 of centralizer body 3 connect and fix, and the lower end of centralizer body 3 is connected and fixed by the upper end of staple 10 with seating nipple main body 4.Centralizer body 3 is for righting seating nipple main body 4, and side down hole 12 is through hole through vertically in the sidewall of seating nipple main body 4, and the lower end of centralizer body 3 is by all or part of shutoff of the upper end of side down hole 12.
The two ends up and down of seating nipple main body 4 are equipped with external screw thread, and the lower end of upper joint sleeve 2 is provided with internal thread, and the upper end of lower joint sleeve 5 is provided with internal thread.The lower end of lower joint sleeve 5 is provided with lower contact 8, and lower contact 8 is tubular, and lower joint sleeve 5 is threaded with lower contact 8.
The lower end of seating nipple main body 4 is fixedly connected with the support 6 of tubular, and the upper end of support 6 is positioned at lower joint sleeve 5, and the lower end of support 6 is positioned at lower contact 8.Be arranged with the guide way 7 of tubular in support 6, the external diameter of guide way 7 equals the internal diameter of support 6, and guide way 7 and support 6 are connected and fixed by locating pin 11.
This is anti-returns that to tell bridge type eccentric injection mandrel specific works process as follows:
When water filling, the water of injection enters the lower end of side down hole 12, jacking ball sealer 9 by the fluid passage 14 in seating nipple main body 4, and the water of then this injection by the adjustable blanking plug in side down hole 12, then enters stratum by water injection hole 13, realizes the stratum water yield and injects.
Anti-returning tells functional realiey process:, as depicted in figs. 1 and 2, when this is anti-return tell bridge type eccentric injection mandrel under enter or down-hole be in stop note state time stratum water under high pressure can be entered adjustable blanking plug (this adjustable blanking plug is that existing product is introduced no longer in detail) by water injection hole 13 after enter in side down hole 12, then current make ball sealer 9 move down and push up pressure circular cone 15, linear sealing is realized between ball sealer 9 and circular cone 15, now fluid passage 14 can not prevent returning the ft connection telling bridge type eccentric injection mandrel with this, thus make oil jacket be in not connected state, therefore reservoir sand and booty cannot enter this anti-returning and tell in bridge type eccentric injection mandrel, thus play anti-returning and tell function.
The above; be only specific embodiment of the utility model, the scope of utility model enforcement can not be limited with it, so the displacement of its equivalent assemblies; or the equivalent variations to do according to the utility model scope of patent protection and modification, all still should belong to the category that this patent is contained.In addition, the technical characteristic in the utility model and all can using by independent assortment between technical characteristic, between technical characteristic and technical scheme, between technical scheme and technical scheme.
Claims (10)
1. anti-returning tells bridge type eccentric injection mandrel, it is characterized in that, described anti-returning is told bridge type eccentric injection mandrel and is comprised the upper joint sleeve (2) connected successively from the top down, seating nipple main body (4) and lower joint sleeve (5), described anti-returning tells the fluid passage (14) that in bridge type eccentric injection mandrel, formation is longitudinally through, side down hole (12) and water injection hole (13) is provided with in the sidewall of seating nipple main body (4), fluid passage (14) can pass through side down hole (12) successively and water injection hole (13) is prevented returning the ft connection telling bridge type eccentric injection mandrel with this, ball sealer (9) is provided with in side down hole (12), side down hole (12) can seal by ball sealer (9).
2. anti-returning according to claim 1 tells bridge type eccentric injection mandrel, it is characterized in that, the axis of side down hole (12) is vertically arranged, the lower end of side down hole (12) is communicated with fluid passage (14), and water injection hole (13) is positioned between the two ends of side down hole (12).
3. anti-returning according to claim 2 tells bridge type eccentric injection mandrel, it is characterized in that, containing Duan Hexia aperture, upper aperture section in side down hole (12), this is provided with circular cone (15) between aperture section and this lower aperture section, ball sealer (9) can coordinate with circular cone (15) and sealed by side down hole (12), and circular cone (15) is positioned between the lower end of water injection hole (13) and side down hole (12).
4. anti-returning according to claim 1 tells bridge type eccentric injection mandrel, it is characterized in that, the upper end of upper joint sleeve (2) is provided with top connection (1), and top connection (1) is tubular, and upper joint sleeve (2) is threaded with top connection (1).
5. anti-returning according to claim 4 tells bridge type eccentric injection mandrel, it is characterized in that, the centralizer body (3) of tubular is arranged with in upper joint sleeve (2), upper end and the top connection (1) of centralizer body (3) connect and fix, and the lower end of centralizer body (3) is connected and fixed by the upper end of staple (10) with seating nipple main body (4).
6. anti-returning according to claim 1 tells bridge type eccentric injection mandrel, it is characterized in that, the two ends up and down of seating nipple main body (4) are equipped with external screw thread, and the lower end of upper joint sleeve (2) is provided with internal thread, and the upper end of lower joint sleeve (5) is provided with internal thread.
7. anti-returning according to claim 1 tells bridge type eccentric injection mandrel, it is characterized in that, the lower end of lower joint sleeve (5) is provided with lower contact (8), and lower contact (8) is tubular, and lower joint sleeve (5) is threaded with lower contact (8).
8. anti-returning according to claim 7 tells bridge type eccentric injection mandrel, it is characterized in that, the lower end of seating nipple main body (4) is fixedly connected with the support (6) of tubular, the upper end of support (6) is positioned at lower joint sleeve (5), and the lower end of support (6) is positioned at lower contact (8).
9. anti-returning according to claim 8 tells bridge type eccentric injection mandrel, it is characterized in that, the guide way (7) of tubular is arranged with in support (6), the external diameter of guide way (7) equals the internal diameter of support (6), and guide way (7) and support (6) are connected and fixed by locating pin (11).
10. anti-returning according to claim 1 tells bridge type eccentric injection mandrel, it is characterized in that, the axis of the axis runout fluid passage (14) of side down hole (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520243686.7U CN204627569U (en) | 2015-04-21 | 2015-04-21 | Anti-backflow bridge type eccentric water distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520243686.7U CN204627569U (en) | 2015-04-21 | 2015-04-21 | Anti-backflow bridge type eccentric water distributor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204627569U true CN204627569U (en) | 2015-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520243686.7U Expired - Fee Related CN204627569U (en) | 2015-04-21 | 2015-04-21 | Anti-backflow bridge type eccentric water distributor |
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| Country | Link |
|---|---|
| CN (1) | CN204627569U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110847869A (en) * | 2019-11-15 | 2020-02-28 | 大庆市海兴石油科技发展有限公司 | Novel eccentric water distributor with pressure seal checking function |
| WO2021092945A1 (en) * | 2019-11-15 | 2021-05-20 | 大庆市海兴石油科技发展有限公司 | New eccentric water distributor capable of performing seal inspection under pressure |
-
2015
- 2015-04-21 CN CN201520243686.7U patent/CN204627569U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110847869A (en) * | 2019-11-15 | 2020-02-28 | 大庆市海兴石油科技发展有限公司 | Novel eccentric water distributor with pressure seal checking function |
| CN110847869B (en) * | 2019-11-15 | 2020-06-09 | 大庆市海兴石油科技发展有限公司 | Eccentric water distributor with pressure seal checking |
| WO2021092945A1 (en) * | 2019-11-15 | 2021-05-20 | 大庆市海兴石油科技发展有限公司 | New eccentric water distributor capable of performing seal inspection under pressure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 |