CN203640703U - Uniflow pressure transmitting water distributor - Google Patents
Uniflow pressure transmitting water distributor Download PDFInfo
- Publication number
- CN203640703U CN203640703U CN201320890051.7U CN201320890051U CN203640703U CN 203640703 U CN203640703 U CN 203640703U CN 201320890051 U CN201320890051 U CN 201320890051U CN 203640703 U CN203640703 U CN 203640703U
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- hole
- water distributor
- plug
- main body
- uniflow
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Abstract
The utility model provides a uniflow pressure transmitting water distributor, belongs to the field of separated-layer water injection of oil field water injection wells and aims at solving the technical problem that an existing water distributor possibly enables dropping-fishing tools to be inconveniently descend and enable non-blowout prevention operation of feed wells to be difficult and the like. The technical scheme for solving the technical problem is that an upper connector is in threaded connection with an upper connecting sleeve, a centering device is connected with a body through a screw, the upper connecting sleeve is in threaded connection with the body, the body is in threaded connection with a lower connecting sleeve and the lower connector, and a passing rack, a guiding body and the body are connected through screws. An internal structure of the body is that a hole I and a hole II are communicated at the blocking ring position, and an upper plug, a lower plug, a steel ball and a spring are arranged in the hole II to form a check valve structure. The uniflow pressure transmitting water distributor has the advantages that the water distributor is provided with a check valve in a flowing channel communicated with the inside and the outside of a pipe, crude oil can be prevented from flowing into the pipe and influencing smooth descending of instruments or the dropping-fishing tools during injection suspension, and non-blowout prevention operation can be achieved during tubular column pulling operation.
Description
Technical field
The utility model relates to the injection well downhole flow regulator that water injection well in oil fields seperated layer water injection is used, what be specifically related to is single current pilot injection well downhole flow regulator.
Background technology
Injection well downhole flow regulator will play non-quantitative water filling, ensure the effect of the required inside and outside differential pressure of packer, conventional injection well downhole flow regulator is in the time stopping noting, managing outer well liquid can enter in oil pipe under reverse differential pressure, the crude oil entering in the well liquid in oil pipe forms dead oil in oil pipe, can cause and survey timing tester or the descending difficulty of pulling and running tool.In addition, the inside and outside diconnected of injection well downhole flow regulator also feed well not open flow operation caused difficulty, because throwing the stifled bottom that can only block tubing string, and the bad solution of side direction feed liquor of injection well downhole flow regulator, as pulled dead mouth under former well blanking plug out before lift pipe string, the one, increase pulling workload, each injection well downhole flow regulator will drag for once and throw once, the 2nd, a lot of wells are thrown dead mouth work and just cannot be carried out at all, because the reprovision operation reason of a lot of wells does not enter can't drag for operation because throwing.
Summary of the invention
In order to overcome the descending inconvenience of pulling and running tool that existing injection well downhole flow regulator may cause and to difficulty that open flow operation does not bring, the utility model provides a kind of novel single current pilot eccentric injection mandrel, this eccentric injection mandrel is not change under the prerequisite of former eccentric injection mandrel structure and operational size, set up ball-and-seat in inside and outside connection on runner of pipe, that liquid can only be from managing interior flow direction pipe, and from managing, do not flow in pipe, survey thereby can solve the impact of oil pipe inner product dead oil the problem of adjusting.
The technical scheme in the invention for solving the technical problem is: this instrument is made up of top connection, upper joint sleeve, centralizer, main body, lower joint sleeve, mistake frame, guide way, lower contact, upper plug, steel ball, spring, lower plug, stifled ring, hole I, hole II; Top connection with upper joint sleeve to be threaded, centralizer is connected with screw with main body, upper joint sleeve with main body to be threaded, main body and lower joint sleeve and lower contact are to be threaded, crossing frame, guide way and main body is connected by screw, hole I is communicated with at stifled ring place with hole II, in the II of hole, forms ball-and-seat structure by upper plug, lower plug, steel ball, spring.
The beneficial effects of the utility model are: this eccentric injection mandrel is because being provided with ball-and-seat in inside and outside connection on runner of pipe, in the time stopping noting, can stop crude oil enter pipe in affect being lowered to smoothly of instrument or pulling and running tool, and can in the time of lift pipe string operation, throw block up after realize not preventing spraying operation.Because having kept the structural parameters of former injection well downhole flow regulator, so need not change in supporting tester and method of operating.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the B-B sectional view of Fig. 2.
1 top connection in figure, 2 upper joint sleeves, 3 centralizers, 4 main bodys, 5 lower joint sleeves, 6 cross framves, 7 guide waies, 8 lower contacts, plug on 9,10 steel balls, 11 springs, 12 times plugs, 13 stifled rings, 14 hole I, 15 hole II.
Detailed description of the invention
Below in conjunction with Fig. 1, the utility model is further described: as shown in the figure, single current pilot eccentric injection mandrel is by top connection 1, upper joint sleeve 2, centralizer 3, main body 4, lower joint sleeve 5, cross frame 6, guide way 7, lower contact 8, upper plug 9, steel ball 10, spring 11, lower plug 12, stifled ring 13, hole I 14, hole II 15 forms, top connection 1 with upper joint sleeve 2 to be threaded, and seal with sealing ring, centralizer 3 is connected with screw with main body 4, upper joint sleeve 2 with main body 4 to be threaded, sealing ring sealing, main body 4 and lower joint sleeve 5 and lower contact 8 are to be threaded, and seal with sealing ring, cross frame 6, guide way 7 is connected by screw with main body 4, hole I14 is used for installing blanking plug, hole II15 is communicated with at stifled ring 13 places with hole I14, hole II15 is interior by upper plug 9, lower plug 12, steel ball 10, spring 11 forms ball-and-seat structure, when water filling, pressure first out enters hole II15 through stifled ring 13 lower space through blanking plug, after pushing steel ball 10 open, enter casing space, in the time stopping noting, spring 11 and casing pressure can oppositely promote steel ball 10 and compress the above section of plug 9, forming hard sealing makes the outer well liquid of oil pipe can not enter oil pipe, therefore do not need again lower dead mouth, thereby reduce pulling workload, reduce the not problem of preventing spraying operation.
This single current pilot injection well downhole flow regulator is on the basis of former bridge type eccentric injection mandrel, on the runner between former blanking plug hole and annular space, has set up ball-and-seat, so both blanking plug is extracted, and because there being the obstruct of ball-and-seat, annular liquid also can not enter in oil pipe in a large number.Because set up ball-and-seat runner latus rectum is not less than 12mm, much larger than water nozzle bore, so can not cause obvious impact to the flow pressure relation of water nozzle, adjusting water faucet still can be undertaken by former method.And because injected water flow velocity after water nozzle enters this heavy caliber runner slows down, so also can not form injury to ball-and-seat.In addition, on this runner, be also provided with pilot micropore, can pipe in downforce timing to pressure gauge conducting pressure, to test envelope pressure measurement.
Claims (1)
1. a single current pilot injection well downhole flow regulator, by by top connection (1), upper joint sleeve (2), centralizer (3), main body (4), lower joint sleeve (5), cross frame (6), guide way (7), lower contact (8), upper plug (9), steel ball (10), spring (11), lower plug (12), stifled ring (13), hole I (14), hole II (15) forms, it is characterized in that top connection (1) with upper joint sleeve (2) to be threaded, centralizer (3) is connected with screw with main body (4), upper joint sleeve (2) with main body (4) to be threaded, main body (4) and lower joint sleeve (5) and lower contact (8) are to be threaded, cross frame (6), guide way (7) is connected by screw with main body (4), hole I(14) with hole II(15) locate to be communicated with at stifled ring (13), hole II(15) interior by upper plug (9), lower plug (12), steel ball (10), spring (11) composition ball-and-seat structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320890051.7U CN203640703U (en) | 2013-12-31 | 2013-12-31 | Uniflow pressure transmitting water distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320890051.7U CN203640703U (en) | 2013-12-31 | 2013-12-31 | Uniflow pressure transmitting water distributor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203640703U true CN203640703U (en) | 2014-06-11 |
Family
ID=50871958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320890051.7U Expired - Fee Related CN203640703U (en) | 2013-12-31 | 2013-12-31 | Uniflow pressure transmitting water distributor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203640703U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105317410A (en) * | 2014-07-07 | 2016-02-10 | 河南旭然石油钻采机械有限公司 | Eccentric water distributor |
-
2013
- 2013-12-31 CN CN201320890051.7U patent/CN203640703U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105317410A (en) * | 2014-07-07 | 2016-02-10 | 河南旭然石油钻采机械有限公司 | Eccentric water distributor |
| CN105317410B (en) * | 2014-07-07 | 2019-01-29 | 河南福侨石油装备有限公司 | A kind of eccentric injection mandrel |
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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 |
Granted publication date: 20140611 Termination date: 20151231 |
|
| EXPY | Termination of patent right or utility model |