CN209604560U - Device for preventing oil stain in stratum from being reversely discharged - Google Patents
Device for preventing oil stain in stratum from being reversely discharged Download PDFInfo
- Publication number
- CN209604560U CN209604560U CN201822142129.2U CN201822142129U CN209604560U CN 209604560 U CN209604560 U CN 209604560U CN 201822142129 U CN201822142129 U CN 201822142129U CN 209604560 U CN209604560 U CN 209604560U
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- CN
- China
- Prior art keywords
- valve
- stratum
- valve seat
- valve pocket
- greasy dirt
- Prior art date
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 28
- 239000010959 steel Substances 0.000 claims abstract description 28
- 238000009434 installation Methods 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 33
- 238000002347 injection Methods 0.000 abstract description 25
- 239000007924 injection Substances 0.000 abstract description 25
- 230000000694 effects Effects 0.000 abstract description 2
- 239000004576 sand Substances 0.000 abstract description 2
- 238000000605 extraction Methods 0.000 abstract 1
- 239000012535 impurity Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 208000036366 Sensation of pressure Diseases 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008398 formation water Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Details Of Valves (AREA)
Abstract
The utility model provides a device for preventing oil stain in the stratum from flowing back relates to the technical field of oil extraction, and the device for preventing oil stain in the stratum from flowing back comprises a cylindrical valve sleeve, wherein the valve sleeve is provided with a valve cavity which is axially communicated with the valve sleeve, a filter screen, a valve seat, a steel ball, a spring support and a spring are sequentially arranged in the valve cavity, the filter screen is fixedly arranged on the inner wall of the valve sleeve, and a plurality of holes which are axially communicated with the valve sleeve are arranged on the filter screen; the valve seat is fixedly arranged on the inner wall of the valve sleeve and is provided with a through hole which is communicated along the axial direction of the valve sleeve; the steel ball is correspondingly arranged on one side of the valve seat, which is back to the filter screen, and can seal the through hole; the spring support is fixedly arranged on the inner wall of the valve sleeve and has a gap with the valve seat, and the spring support is provided with an overflowing hole which is communicated along the axial direction of the valve sleeve; one end of the spring is propped against the steel ball, and the other end of the spring is fixedly arranged on the spring bracket. The device for preventing the reverse discharge of the oil stains in the stratum can effectively prevent the oil stains or sand in the stratum from being discharged back to a shaft, and improves the water injection effect of a water injection well.
Description
Technical field
The utility model relates to oil recovery technique fields, in particular to anti-for greasy dirt in a kind of anti-stratum of separate water injection well
Arranging device.
Background technique
Water flooding recovery refers in oilfield development process, injects water into oil reservoir by special injection well, keeps or restore oil
Stressor layer makes oil reservoir have very strong driving force, to improve the exploitation rate and recovery ratio of oil reservoir.Seperated layer water injection is water flooding recovery
A kind of principal mode refers to the tripping in packer in water injection well, and the oil reservoir to differ greatly is separated, then is layered with injection well downhole flow regulator
Water distribution controls high permeability formation water injection rate, and middle-low permeability oil-bearing stratum flooding is strengthened, and makes all kinds of oil reservoirs that can play work
With.
For the oil field exploited, will not have potential oil well to be changed to water injection well and common technology.But In
In this kind of well the injecting process, because drilling well stops infusing, the unstable or strata pressure of pump pressure is high, often results in stratum and returns row, to lead
The greasy dirt or silt particle that accumulation is largely returned out out of stratum in down-hole string are caused, the blocking of underground water nozzle, blocking TCH test channel, oil are caused
The problems such as dirt adherency Instrument sensor can not work, seriously affects water-injection efficiency.
Therefore, it is necessary to invent in a kind of simple anti-stratum the anti-arranging device of greasy dirt to improve water injection well note to solve the problems, such as this
Water effect.
Utility model content
The purpose of the utility model is to provide the anti-arranging device of greasy dirt in a kind of anti-stratum, the oil that can be effectively prevent in stratum
Dirty or silt particle is expelled back into pit shaft, improves water injection well flood effectiveness.
In order to achieve the above objectives, the utility model proposes the anti-arranging devices of greasy dirt in a kind of anti-stratum, including tubular valve
Set, the valve pocket have the valve pocket axially through valve chamber, wherein be sequentially installed in the valve chamber:
Strainer is installed on the inner wall of the valve pocket, offered on the strainer it is multiple along the valve pocket axially through
Eyelet；
Valve seat is installed on the inner wall of the valve pocket, the valve seat have along the valve pocket axially through through hole；
Steel ball is correspondingly arranged at the valve seat backwards to the side of the strainer, and can close the through hole；
Spring support has interval on the inner wall of the fixed valve pocket and with the valve seat, opens up on the spring support
Have along the valve pocket axially through flowing hole；
Spring, on the steel ball, the other end is installed on the spring support one end contact.
The anti-arranging device of greasy dirt in anti-stratum as described above, wherein the valve pocket includes valve body and end cap, the end cap
Cylindrical with the valve body, the end cap has fixed part and first connecting portion, and the internal diameter of the first connecting portion is big
The first installation step is formed in the internal diameter of the fixed part, the valve body includes second connecting portion and work department, and described second
The internal diameter of interconnecting piece is greater than the internal diameter of the work department and forms the second installation step, and the second connecting portion is set in described the
It is removedly connected in one interconnecting piece and with the first connecting portion, the strainer connects with the valve seat to be arranged and be embedded
Between first installation step and second installation step.
The anti-arranging device of greasy dirt in anti-stratum as described above, wherein have on the outer wall of the work department a plurality of along described
The second mounting groove that the circumferential direction of valve pocket opens up, a plurality of second mounting groove interval are arranged, in every second mounting groove
It is provided with the second sealing ring.
The anti-arranging device of greasy dirt in anti-stratum as described above, wherein the first connecting portion and the second connecting portion spiral shell
Line connection.
The anti-arranging device of greasy dirt in anti-stratum as described above, wherein have on the outer wall of the valve seat along the valve seat
The first mounting groove circumferentially opened up is provided with the first sealing ring in first mounting groove.
The anti-arranging device of greasy dirt in anti-stratum as described above, wherein the spring support is in criss-cross construction.
The anti-arranging device of greasy dirt in anti-stratum as described above, wherein the through hole is installed towards one end of the steel ball
There is gasket, the gasket is annular in shape and can cooperate with the steel ball sealing.
Compared with prior art, the utility model has the characteristics that and advantage:
The utility model proposes anti-stratum in the anti-arranging device of greasy dirt be connected to the lower part of adjustable stopper, it is normal to fill the water
When, injection water first passes through strainer, enters back into valve seat, and strainer can stop to inject organic impurities, scale etc. in water and enter valve seat
Through hole, avoiding influences the sealing cooperation of steel ball and valve seat because organic impurities, scale etc. are deposited on valve seat, guarantees valve seat
With steel ball composition ball-valve structure in off position when, steel ball can completely enclose through hole, meanwhile, also prevent injection water in
Above-mentioned organic impurities, the injection such as scale stratum.
Detailed description of the invention
Attached drawing described here is only used for task of explanation, and is not intended to limit in any way disclosed by the utility model
Range.In addition, shape and proportional sizes of each component in figure etc. are only schematically, to be used to help the reason to the utility model
Solution is not the specific shape and proportional sizes for limiting each component of the utility model.Those skilled in the art is practical new at this
Under the introduction of type, various possible shapes and proportional sizes can be selected to implement the utility model as the case may be.
Fig. 1 be the utility model proposes anti-stratum in the anti-arranging device of greasy dirt structural schematic diagram；
Fig. 2 is the structural schematic diagram of valve pocket in the utility model.
Description of symbols:
100, the anti-arranging device of greasy dirt in anti-stratum；110, valve pocket；
111, valve chamber；112, valve body；
113, end cap；1131, fixed part；
1132, first connecting portion；1133, the first installation step；
1121, second connecting portion；1122, work department；
1123, the second installation step；1124, the second mounting groove；
120, strainer；130, valve seat；
131, through hole；132, the first mounting groove；
140, steel ball；150, spring support；
160, spring；170, the second sealing ring；
180, the first sealing ring.
Specific embodiment
In conjunction with the description of attached drawing and specific embodiment of the present invention, the utility model can be clearly understood
Details.But specific embodiment of the present utility model described herein, it is only used for explaining the purpose of this utility model, without
It can be understood as being limitations of the present invention in any way.Under the introduction of the utility model, technical staff is contemplated that
Any possible deformation based on the utility model, these are regarded as belonging to the scope of the utility model.
Please refer to Fig. 1, Fig. 2, the utility model proposes anti-stratum in the anti-arranging device 100 of greasy dirt include tubular valve pocket
110, valve pocket 110 have valve pocket 110 axially through valve chamber 111, be sequentially installed with strainer 120, valve seat in valve chamber 111
130, steel ball 140, spring support 150 and spring 160, strainer 120 are installed on the inner wall of valve pocket 110, are offered on strainer 120
It is multiple along valve pocket 110 axially through eyelet；Valve seat 130 is installed on the inner wall of valve pocket 110, and valve seat 130 has along valve pocket 110
Axially through through hole 131；Steel ball 140 is correspondingly arranged at side of the valve seat 130 backwards to strainer 120, and can close perforation
Hole 131；There is interval on the inner wall of the fixed valve pocket 110 of spring support 150 and with valve seat 130, offer edge on spring support 150
Valve pocket 110 axially through flowing hole；For 160 one end contact of spring on steel ball 140,160 other end of spring is installed in spring
On bracket 150.
The utility model proposes anti-stratum in the anti-arranging device 100 of greasy dirt be connected to the lower part of adjustable stopper, normally
When water filling, injection water first passes through strainer 120, enters back into valve seat 130, and strainer 120 can stop to inject organic impurities, scale in water
Deng the through hole 131 for entering valve seat 130, avoiding influences steel ball 140 because organic impurities, scale etc. are deposited on valve seat 130
Cooperate with the sealing of valve seat 130, when guaranteeing ball-valve structure that valve seat 130 and steel ball 140 form in off position, 140 energy of steel ball
Enough completely enclosed through hole 131, prevents the anti-row of stratum greasy dirt；Meanwhile also preventing above-mentioned organic impurities, water in injection water
Dirt etc. injects stratum.
The utility model proposes anti-stratum in the anti-arranging device 100 of greasy dirt the course of work it is as follows:
The utility model proposes anti-stratum in the anti-arranging device 100 of greasy dirt be connected to the lower part of adjustable stopper, valve pocket
110 are vertically arranged, and the water inlet (i.e. close to the port of strainer 120) of valve chamber 111 is located below, and normally when water filling, injection water is logical
Filter screen 120 enters, and utilizes difference between reservoir pre ssure and injection pressure, overcomes the resistance of 140 gravity of steel ball and spring 160 that steel ball 140 is pushed to leave valve
Seat 130, through hole 131 are opened, and valve chamber 111 forms circulation passage, and injection water is flowed out by valve chamber, inject ground into adjustable water injection well choke
Layer.When system pressure fluctuates, and downhole formation pressure is greater than water pressure is carried out in well, steel ball 140 is made in 160 thrust of spring and gravity
It is pressed against under on valve seat 130, through hole 131 is made to remain closed state, prevented formation sand production or greasy dirt from returning and be discharged to pit shaft
It is interior, improve water injection well water-injection efficiency.
In the utility model one optional example, valve pocket 110 includes valve body 112 and end cap 113,113 He of end cap
Valve body 112 is cylindrical, end cap 113 have fixed part 1131 and first connecting portion 1132, first connecting portion 1132 it is interior
The internal diameter that diameter is greater than fixed part 1131 forms the first installation step 1133, and valve body 112 includes second connecting portion 1121 and work
Portion 1122, the internal diameter of second connecting portion 1121 are greater than the internal diameter of work department 1122 and form the second installation step 1123, and second connects
Socket part 1121 is set in first connecting portion 1132 and is removedly connected with first connecting portion 1132, strainer 120 and valve seat 130
Connect and be embedded between the first installation step 1133 and the second installation step 1123, that is, the side contact of strainer 120 is
On one installation step 1133, the other side contact of strainer 120 on valve seat 130, valve seat 130 backwards to strainer 120 contact the
On two installation steps 1121.In this way, valve body 112, end cap 113, strainer 120 and valve seat 130 mount and dismount in which can be convenient.
Convenient for the installation and maintenance of the anti-arranging device 100 of greasy dirt in anti-stratum.
In the utility model one optional example, there is a plurality of week along valve pocket 110 on the outer wall of work department 1122
To the second mounting groove 1124 opened up, a plurality of interval of second mounting groove 1124 is arranged, and is respectively provided in every second mounting groove 1124
There is the second sealing ring 170.In this way, the utility model proposes anti-stratum in the anti-arranging device 100 of greasy dirt be connected to adjustable block
When device, it is ensured that the sealing cooperation between valve pocket 110 and adjustable blanking plug.
In the utility model one optional example, first connecting portion 1132 and second connecting portion 1121 are threadedly coupled.
Internal screw thread is offered on the inner wall of first connecting portion 1132, and external screw thread, internal screw thread are offered on the outer wall of second connecting portion 1121
It is intermeshed with external screw thread.
There is the circumferential direction along valve seat 130 to open up in the utility model one optional example, on the outer wall of valve seat 130
First mounting groove 132 is provided with the first sealing ring 180 in first mounting groove, close between valve seat 130 and valve pocket 110 to guarantee
Envelope cooperation.
In the utility model one optional example, spring support 150 is in criss-cross construction.That is spring support 150
Support rod including two orthogonal rubber, the both ends of each support rod are fixedly connected with valve pocket 110, and two support rods will
The valve chamber 110 of corresponding position is separated into four flowing holes, and the cross section of each flowing hole is fan-shaped, the end of spring 162
It is fixedly connected at the position that two support rods intersect vertically.In this way, spring support 150 not only has the fixation to spring 160
And supporting role, moreover it is possible to which buffer function is played to the injection water flowed through.
In an optional example, spring support 150 be arranged in the end of valve body 112 and with the one of valve body 112
Molding is fabricated.
In the utility model one optional example, one end of through hole 131 towards steel ball 140 is equipped with gasket,
Gasket is annular in shape and can seal cooperation with steel ball 140.
In the utility model one optional example, steel ball 140 is pressed against into valve when difference between reservoir pre ssure and injection pressure is less than 0.3MPa
Sealing is realized on seat 130.In water filling, only need 0.3MPa or more pressure difference that 140 gravity of steel ball and 160 resistance of spring can be overcome to beat
The water filling of through hole 131 is opened, while preventing scale or greasy dirt from ball valve sealing being made not generate gap sternly.
For explaining in detail for the respective embodiments described above, purpose, which is only that, explains the utility model, in order to
It better understood when the utility model, still, these descriptions cannot be with any explanation at being limit to the utility model
System, in particular, each feature described in various embodiments can also mutual any combination, to form other implementations
Mode, in addition to there is clearly opposite description, these features should be understood to can be applied in any one embodiment, and simultaneously
It is not only limited to described embodiment.
Claims (7)
1. the anti-arranging device of greasy dirt in a kind of anti-stratum, including tubular valve pocket, the valve pocket has the axial direction in the valve pocket
The valve chamber of perforation, which is characterized in that be sequentially installed in the valve chamber:
Strainer is installed on the inner wall of the valve pocket, offered on the strainer it is multiple along the valve pocket axially through eyelet；
Valve seat is installed on the inner wall of the valve pocket, the valve seat have along the valve pocket axially through through hole；
Steel ball is correspondingly arranged at the valve seat backwards to the side of the strainer, and can close the through hole；
Spring support has interval on the inner wall of the fixed valve pocket and with the valve seat, offers edge on the spring support
The valve pocket axially through flowing hole；
Spring, on the steel ball, the other end is installed on the spring support one end contact.
2. the anti-arranging device of greasy dirt in anti-stratum as described in claim 1, which is characterized in that the valve pocket includes valve body and end
Lid, the end cap and the valve body are cylindrical, and the end cap has fixed part and first connecting portion, first connection
The internal diameter that the internal diameter in portion is greater than the fixed part forms the first installation step, and the valve body includes second connecting portion and work
Portion, the internal diameter of the second connecting portion are greater than the internal diameter of the work department and form the second installation step, the second connecting portion
It is set in the first connecting portion and is removedly connected with the first connecting portion, the strainer is connected with the valve seat
It sets and is embedded between first installation step and second installation step.
3. the anti-arranging device of greasy dirt in anti-stratum as claimed in claim 2, which is characterized in that have on the outer wall of the work department
The second mounting groove that a plurality of circumferential direction along the valve pocket opens up, a plurality of second mounting groove interval setting, every described second
The second sealing ring is provided in mounting groove.
4. the anti-arranging device of greasy dirt in anti-stratum as claimed in claim 2, which is characterized in that the first connecting portion and described the
Two interconnecting pieces are threadedly coupled.
5. the anti-arranging device of greasy dirt in anti-stratum as described in claim 1, which is characterized in that have edge on the outer wall of the valve seat
The first mounting groove that the circumferential direction of the valve seat opens up is provided with the first sealing ring in first mounting groove.
6. the anti-arranging device of greasy dirt in anti-stratum as described in claim 1, which is characterized in that the spring support is in right-angled intersection
Structure.
7. the anti-arranging device of greasy dirt in anti-stratum as described in claim 1, which is characterized in that the through hole is towards the steel ball
One end gasket is installed, the gasket is annular in shape and can cooperate with the steel ball sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822142129.2U CN209604560U (en) | 2018-12-20 | 2018-12-20 | Device for preventing oil stain in stratum from being reversely discharged |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822142129.2U CN209604560U (en) | 2018-12-20 | 2018-12-20 | Device for preventing oil stain in stratum from being reversely discharged |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209604560U true CN209604560U (en) | 2019-11-08 |
Family
ID=68397949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822142129.2U Active CN209604560U (en) | 2018-12-20 | 2018-12-20 | Device for preventing oil stain in stratum from being reversely discharged |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209604560U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112546712A (en) * | 2020-12-07 | 2021-03-26 | 娄底市亿通管业有限公司 | Automatic dirt removing device for water supply equipment |
-
2018
- 2018-12-20 CN CN201822142129.2U patent/CN209604560U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112546712A (en) * | 2020-12-07 | 2021-03-26 | 娄底市亿通管业有限公司 | Automatic dirt removing device for water supply equipment |
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