CN203066947U - Eccentric single-current water distributor - Google Patents
Eccentric single-current water distributor Download PDFInfo
- Publication number
- CN203066947U CN203066947U CN 201320065777 CN201320065777U CN203066947U CN 203066947 U CN203066947 U CN 203066947U CN 201320065777 CN201320065777 CN 201320065777 CN 201320065777 U CN201320065777 U CN 201320065777U CN 203066947 U CN203066947 U CN 203066947U
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- Prior art keywords
- eccentric
- valve
- main body
- hole
- blanking plug
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Abstract
An eccentric single-current water distributor belongs to the technical field of oil recovery, in particular to an underground water distribution tool for water injection layer by layer of a water injection well in an oil field oil recovery engineering, and comprises a water distribution main body which consists of an upper joint, au upper outer tube, an eccentric main body, a lower outer tube and a lower joint, and a positioning guide mechanism comprising an inner guide cylinder. When in use, a blanking plug is positioned in an eccentric hole of the blanking plug. Owing to the structure, a non-return valve is arranged outside a blanking plug hole of the water distribution main body, so that the eccentric single-current water distributor is simple in structure, is easy to process and assemble, conducive to performing valve sealing experiments, and is suitable for multi-layer distribution and injection.
Description
Technical field
The utility model relates to the oil recovery technique field, particularly is used for a kind of down-hole water distribution instrument of water injection well seperated layer water injection in the petroleum production engineering of oil field.
Background technology
Eccentric injection mandrel is told in the counnter attack of using in the petroleum production engineering of oil field at present, and a kind of for the patent No. is 200620025777.4 non-return eccentric injection mandrel, another kind is 201010539923.6 eccentric injection mandrel anti-backflow device for the patent No..The runner pore structure of these two kinds of patented technologies is similar, the runner hole arranged side by side with the blanking plug hole is set in the water distribution main body, two holes are communicated with, ball valve is arranged in the runner hole, two technology differences show valve seat position difference: the ball valve of first patented technology is to utilize the spring supporting seat to go into valve seat, and the ball valve of second patented technology is to go into valve seat by the deadweight seat.Their common defects shows: the one, and ball valve is arranged on the inside of water distribution main body, complex structure, difficult processing is installed and the test difficulty; The 2nd, valve seat and water distribution main body are one, and the valve port quality be cannot say for sure easily to sting card and decrease, and sealing life is short.
Summary of the invention
Order of the present utility model is to propose a kind of eccentric single current injection well downhole flow regulator of installing simple in structure, convenient.
The utility model connects upper exterior tube in the top connection lower end, connect lower outer pipe in the upper exterior tube lower end, interior guide cylinder is set in upper exterior tube, connect eccentric main body in interior guide cylinder lower end, connect lower contact in eccentric main body lower end by lower outer pipe, described eccentric main body arranges centre bore and is used for installing the blanking plug eccentric orfice of blanking plug, between described centre bore and described blanking plug eccentric orfice intercommunicating pore is set, be provided with the locking annular distance on the top of described blanking plug eccentric orfice, the middle part arranges looping pit; It is characterized in that: offer at least one through hole in described eccentric main body, the inner of described through hole is communicated with described blanking plug eccentric orfice, and the outer end of described through hole is communicated with looping pit, in described each through hole one way valve is set respectively.
The utility model is formed the water distribution main body by top connection, upper exterior tube, eccentric main body, lower outer pipe and lower contact, is to form positioning and guiding mechanism by interior guide cylinder.During use, with blanking plug place the blanking plug eccentric orfice in.
Operating principle: during water filling, from the mesopore of top connection, enter in the blanking plug eccentric orfice through centre bore, the intercommunicating pore of eccentric main body, by the one way valve in looping pit enters through hole upwards of water nozzle in the blanking plug, enter the stratum at last again.During single current, when the dispensing well stopped annotating, the pressure in the tubing string reduced, and when originally injecting the formation water backflow, one way valve is closed rapidly, prevented that the formation water refluence from entering in the tubing string.
The utility model is arranged on one way valve outside the blanking plug hole of water distribution main body, and is simple in structure, and easily processing, installation and valve seal test are applicable to the multilayer injection allocation more.
In addition, one way valve of the present utility model can have two kinds of concrete structures.
A kind of one way valve comprises valve seat, valve ball and valve bonnet, and described valve seat is arranged on through hole the inner, and described valve bonnet is threaded in the outer end of through hole, between described valve seat and valve bonnet valve ball is set.Adopt and the independent valve seat that arranges, can adopt the material making that useful hardness is higher than eccentric main body, durability and the application life that can effectively improve valve seat also are beneficial to replacing, to improve the conformability of valve ball and valve seat, be beneficial to the raising sealing.
Another kind of one way valve comprises bar cone valve, spring and valve bonnet, described valve bonnet is threaded in the outer end of through hole, in the inner of described through hole the conical ring step is set, between described conical ring step and valve bonnet, the bar cone valve is set, described spring is nested with outside the bar cone valve, and the outer end of described spring is spacing on the inner face of valve bonnet.
The one way valve of two kinds of structures can be used in combination.It is valve seat that this technical scheme directly adopts the eccentric main body that is processed with the conical ring step, also can realize cooperating of bar cone valve and valve seat, with the sealing reliability of realization one way valve.
In addition, offer in the centre bore of the eccentric main body outside with centre hole axis to parallel channels, passage is communicated with centre bore in the upper end of eccentric main body, and passage is communicated with centre bore in the lower end of eccentric main body.After the centre bore of eccentric main body was blocked, current can pass through passage, from the upper end of eccentric main body through to the lower end, can normal water distribution to guarantee following eccentric injection mandrel.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 be among Fig. 1 A-A to a kind of profile.
Fig. 3 be among Fig. 1 A-A to second kind of profile.
Fig. 4 be among Fig. 1 A-A to the third profile.
The specific embodiment
As shown in Figure 1, the utility model connects upper exterior tube 2 in top connection 1 lower end, connect lower outer pipe 7 in upper exterior tube 2 lower ends, guide cylinder 3 in upper exterior tube 2, arranging, connect eccentric main body 6 in interior guide cylinder 3 lower ends by bolt 5, connect lower contact 12 in eccentric main body 6 lower ends by lower outer pipe 7, arrange support set 10 at the interior step of lower contact 12, detent bracket 8 is set on support set 10, in detent bracket 8, by screw 11 fairlead 9 is set.
Eccentric main body 6 arranges centre bore 6-1 and is used for installing the blanking plug eccentric orfice 6-2 of blanking plug 4.Between centre bore 6-1 and blanking plug eccentric orfice 6-2 intercommunicating pore 6-3 is set, is provided with locking annular distance 6-4 on the top of blanking plug eccentric orfice 6-2, the middle part arranges looping pit 6-5.
As shown in Figure 2, on eccentric main body 6, offer two through hole 6-7 respectively in the bilateral symmetry of blanking plug eccentric orfice 6-2 ground, the inner of each through hole 6-7 is communicated with blanking plug eccentric orfice 6-2 respectively, and the outer end of each through hole 6-7 is communicated with looping pit 6-5.
The one way valve of being made up of valve seat 6-9, valve ball 9-10 and valve bonnet 6-11 is set respectively in each through hole 6-7.
Wherein, valve seat 6-9 is arranged on through hole 6-7 the inner, and valve bonnet 6-11 is threaded in the outer end of through hole 6-7, between valve seat 6-9 and valve bonnet 6-11 valve ball 6-10 is set.
Offer a plurality of passage 6-8 with mesopore hole 6-1 axially parallel in the mesopore hole of the eccentric main body 6 6-1 outside, the upper and lower end of each passage 6-8 is communicated with centre bore 6-1 respectively.
As shown in Figure 3, the same with last example, on eccentric main body 6, two through hole 6-7 are offered on bilateral symmetry ground in blanking plug eccentric orfice 6-2 respectively, different is, one way valve in each through hole 6-7 is by bar cone valve 6-12, spring 6-13 and valve bonnet 6-11 form, valve bonnet 6-11 is threaded in the outer end of through hole 6-7, conical ring step 6-6 is set in the inner of through hole 6-7, bar cone valve 6-12 is set between conical ring step 6-6 and valve bonnet 6-11, spring 6-13 is nested with outside bar cone valve 6-12, and the outer end of spring 6-13 is spacing on the inner face of valve bonnet 6-11.
As shown in Figure 4, the same with last two examples, on eccentric main body 6, offer two through hole 6-7 respectively in the bilateral symmetry of blanking plug eccentric orfice 6-2 ground, different is, one way valve difference in each through hole 6-7, an one way valve of being made up of valve seat 6-9, valve ball 9-10 and valve bonnet 6-11, another forms one way valve by bar cone valve 6-12, spring 6-13, valve bonnet 6-11 and eccentric main body 6.
Claims (4)
1. eccentric single current injection well downhole flow regulator, comprise top connection, connect upper exterior tube in the top connection lower end, connect lower outer pipe in the upper exterior tube lower end, interior guide cylinder is set in upper exterior tube, connect eccentric main body in interior guide cylinder lower end, connect lower contact in eccentric main body lower end by lower outer pipe, described eccentric main body arranges centre bore and is used for installing the blanking plug eccentric orfice of blanking plug, between described centre bore and described blanking plug eccentric orfice, intercommunicating pore is set, be provided with the locking annular distance on the top of described blanking plug eccentric orfice, the middle part arranges looping pit; It is characterized in that: offer at least one through hole in described eccentric main body, the inner of described through hole is communicated with described blanking plug eccentric orfice, and the outer end of described through hole is communicated with looping pit, in described each through hole one way valve is set respectively.
2. according to the described eccentric single current injection well downhole flow regulator of claim 1, it is characterized in that: described one way valve comprises valve seat, valve ball and valve bonnet, and described valve seat is arranged on through hole inside, and described valve bonnet is threaded in the outer end of through hole, between described valve seat and valve bonnet valve ball is set.
3. according to the described eccentric single current injection well downhole flow regulator of claim 1, it is characterized in that: described one way valve comprises bar cone valve, spring and valve bonnet, described valve bonnet is threaded in the outer end of through hole, in the inner of described through hole the conical ring step is set, between described conical ring step and valve bonnet, the bar cone valve is set, described spring is nested with outside the bar cone valve, and the outer end of described spring is spacing on the inner face of valve bonnet.
4. according to claim 1 or 2 or 3 described eccentric single current injection well downhole flow regulators, it is characterized in that: offer at least one passage with the centre bore axially parallel in the centre bore outside of eccentric main body, each passage is communicated with centre bore in the upper end of eccentric main body, and each passage is communicated with centre bore in the lower end of eccentric main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320065777 CN203066947U (en) | 2013-02-05 | 2013-02-05 | Eccentric single-current water distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320065777 CN203066947U (en) | 2013-02-05 | 2013-02-05 | Eccentric single-current water distributor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203066947U true CN203066947U (en) | 2013-07-17 |
Family
ID=48765757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320065777 Expired - Lifetime CN203066947U (en) | 2013-02-05 | 2013-02-05 | Eccentric single-current water distributor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203066947U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106032745A (en) * | 2015-03-09 | 2016-10-19 | 中国石油天然气股份有限公司 | A digital separated layer water injection ground control system and method |
| CN107701155A (en) * | 2017-10-13 | 2018-02-16 | 中国石油化工股份有限公司 | Intelligence control formula in underground insulates injection allocation apparatus |
| CN108625835A (en) * | 2018-08-07 | 2018-10-09 | 阜宁县石油机械有限公司 | A kind of eccentric injection mandrel |
-
2013
- 2013-02-05 CN CN 201320065777 patent/CN203066947U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106032745A (en) * | 2015-03-09 | 2016-10-19 | 中国石油天然气股份有限公司 | A digital separated layer water injection ground control system and method |
| CN107701155A (en) * | 2017-10-13 | 2018-02-16 | 中国石油化工股份有限公司 | Intelligence control formula in underground insulates injection allocation apparatus |
| CN108625835A (en) * | 2018-08-07 | 2018-10-09 | 阜宁县石油机械有限公司 | A kind of eccentric injection mandrel |
| CN108625835B (en) * | 2018-08-07 | 2023-11-24 | 阜宁县石油机械有限公司 | Eccentric water distributor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130717 |