CN107355204A - One kind, which is exempted to survey, adjusts constant current to match somebody with somebody water regulating valve - Google Patents
One kind, which is exempted to survey, adjusts constant current to match somebody with somebody water regulating valve Download PDFInfo
- Publication number
- CN107355204A CN107355204A CN201710635334.XA CN201710635334A CN107355204A CN 107355204 A CN107355204 A CN 107355204A CN 201710635334 A CN201710635334 A CN 201710635334A CN 107355204 A CN107355204 A CN 107355204A
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- China
- Prior art keywords
- water
- somebody
- regulating valve
- survey
- constant current
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/20—Displacing by water
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
Abstract
Exempting to survey the invention discloses one kind adjusts constant current to match somebody with somebody water regulating valve.Regulating valve is mainly made up of valve body, supporter, balance plate, package, spring, adjustment means.The present invention is designed according to mechanical balance principle and oil nozzle pressure difference relation, control valve is placed in water injection well, adjustment means can be driven to move up and down during balance plate discontinuity equalization, the water flow that can make to flow into oil reservoir from water injection well is definite value, is not also influenceed even if the despite pressure fluctuations of water injection well and oil reservoir on flow.The control valve is when reducing the workloads such as test, regulation, it can also at least be used to improve peupendicular hole, inclined shaft, horizontal well multilayer segment equalization water injection capacity, the delay oil well water breakthrough time, weaken the water cone degree that different reservoir physical difference is brought, thus improve water filling success rate and oil recovery factor and oilfield economic benefit.
Description
Technical field
The present invention relates to the regulating valve that control injection water in oil field flows into stratum.Exempt to survey more particularly, to one kind and adjust perseverance
Stream matches somebody with somebody water regulating valve.The valve can at least be used to improve peupendicular hole, inclined shaft, horizontal well multilayer segment equalization water injection capacity.
Background technology
Oil-field flooding is to ensure formation pressure, realizes oil field high yield, stable yields, improves Development Response of Oilfield and improves crude oil and adopts
The effective means of yield.But because physical properties of fluids difference, interlayer heterogeneity etc. can make injection water exist between each reservoir of oil reservoir
Coning occurs for oil reservoir, finally breaks through whole oil reservoir and is plucked out of into oil well.In order to solve the problems, such as water cone that interlayer contradiction is brought, oil
Field worker generally uses eccentric water allocater, and the flow of injection water is distributed using separate zone waterflooding technology, and the technology generally requires
Fine injection is realized in a series of operations such as layering, test, allotment.The serial operation needs monitoring multi-zone flow regulating flow in real time,
Complex process, and if electronic instrument, which breaks down, cannot continue normal work.
Therefore, with reference to mechanics equation of equilibrium and oil nozzle flow differential pressure relation formula, design one kind and exempt to survey and adjust constant current to match somebody with somebody
Water regulating valve.The valve can overcome injection well and formation pressure fluctuation problem, realize constant flow water filling, so as to reduce workload.
The content of the invention
The present invention provide one kind exempt from survey adjust constant current match somebody with somebody water regulating valve, the valve has movable link, can according to injection well with
And reservoir pressure change automatically adjusts so that the water-carrying capacity for injecting stratum is definite value, and thus balanced profit promotes interface, delay oil
The well water breakthrough time, weaken the water cone consequence that different reservoir physical difference is brought.
In one embodiment, one kind, which is exempted to survey, adjusts constant current to match somebody with somebody water regulating valve, it is characterised in that it mainly includes：Valve body
(1), supporter (2), balance plate (3) three parts.Valve body (1) side is provided with entrance (101), bottom is provided with outlet oil nozzle (102),
Top is provided with pilot passage (4), and entrance (101) and outlet oil nozzle (102) are respectively used to make injection water inflow and outflow regulating valve, and
Pilot passage (4) is used to water filling well pressure introducing chamber (5)；Supporter (2), which is located inside valve body (1), to be used for spring
(302) support is provided；Balance plate (3) is located inside supporter, thereon separately below by different pressure.
Described balance plate (3) upper surface is connected with package (301), and lower surface is connected with spring (302), lower surface
Center is additionally provided with adjustment means (303), and adjustment means (303) lower end is cone., can band during balance plate (3) stress lack of equilibrium
Dynamic adjustment means (303) move up and down.
The other end of described package (301) is connected on valve body (1), and package (301) is used for chamber (5) and flow chamber
(6) separate.
In another embodiment, one kind, which is exempted to survey, adjusts constant current to match somebody with somebody water regulating valve, it is characterised in that it mainly includes：Valve body
(1), supporter (2), balance plate (3) three parts.(1) side of valve body is provided with entrance (101), another side is provided with outlet
Oil nozzle (102), top are provided with pilot passage (4), and entrance (101) and outlet oil nozzle (102) are respectively used to make injection current become a mandarin
Go out regulating valve, and pilot passage (4) is used to water filling well pressure introducing chamber (5)；Supporter (2) is located inside valve body (1) and used
In to spring (302) offer support；Balance plate (3) is located inside supporter, thereon separately below by different pressure.
In this embodiment, adjustment means (303) lower end is set to circular arc sheet and is close to export the valve above oil nozzle (102)
Body (1) inwall.
Advantage for present invention：Control valve is provided with adjustment means (303), when water filling well pressure and reservoir pressure ripple
When dynamic, size that adjustment means (303) can move up and down and control water body to enter inlet/outlet oil nozzle (102) passage so that pressure
Change is not influenceed on injection water-carrying capacity, i.e., injection water-carrying capacity is always maintained at constant；And the control valve does not need tripping in cable, electricity
The power tools such as sub- equipment, it is not required that the job step such as test, adjustment, workload and time can be saved.
Brief description of the drawings
Fig. 1 is the partial sectional view that the present invention is used in straight well.
Fig. 2, which is that the present invention is a kind of, to exempt to survey the first embodiment profile for adjusting constant current to match somebody with somebody water regulating valve.
Fig. 3, which is that the present invention is a kind of, to exempt to survey the second embodiment profile for adjusting constant current to match somebody with somebody water regulating valve.
Each description of symbols of the figures above：
A, oil reservoir；B, interlayer；C, sleeve pipe；D, packer；E, oil pipe；F, exempting to survey adjusts constant current to match somebody with somebody water regulating valve；G, pit shaft；h、
Water flow direction；1st, valve body；101st, entrance；102nd, oil nozzle is exported；2nd, supporter；3rd, balance plate；301st, package；302nd, spring；
303rd, adjustment means；4th, pilot passage；5th, chamber；6th, flow chamber；7th, annular space.
Embodiment
With reference to each accompanying drawing, the invention will be further described.
Fig. 1 is the work partial schematic diagram that the present invention is used in vertical bore.Sleeve pipe (c), oil pipe (e) pass perpendicularly through oil
Layer (a) and interlayer (b), while sleeve pipe (c) and oil pipe (e) can form annular space (7), packer (d) be added in annular space (7), and seal
Every the position face interlayer (b) of device (d).Flow channel is provided with sleeve pipe (c) and oil pipe (e), by oil reservoir (a) and pit shaft (g)
Communication is got up.Flowed from the water body of ground injection along water flow direction (h), ring is entered after regulating valve (f) and oil pipe (c)
Empty (7), and eventually enter into oil reservoir (a).
Fig. 2, which is that the present invention is a kind of, to exempt to survey the first the embodiment diagrammatic cross-section for adjusting constant current to match somebody with somebody water regulating valve.Mainly by
Valve body (1), supporter (2), balance plate (3) three parts composition.Valve body (1) side is provided with entrance (101), and entrance (101) is
Circle, valve body (1) bottom, which is provided with, exports oil nozzle (102), and most water in water injection well can enter flow chamber through entrance (101)
(6), then by outlet oil nozzle (102) annular space (7) is flowed into；Supporter (2) is uncovered cylinder, its bottom open circular hole be easy to fluid from
Flow chamber (6) flows into, and supporter (2) can also provide support to spring (302)；Balance plate (3) is wafer type, is located at support
Body (2) is internal, and balance plate (3) upper surface is connected with package (301), balance plate (3) lower surface and spring (302), adjustment means
(303) it is connected；Adjustment means (303) lower end is cone, is just being alignd with outlet oil nozzle (102)；The internal shape of package (301)
Into chamber (5), the fraction water in water injection well can enter chamber (5) through pilot passage (4).
It should be appreciated that supporter (2) perforate, which differs, is set to circular hole, can be any possible shape.
Two be set to shown in figure the it should be noted that number of spring differs, spring can change other any energy into
The component (such as spring leaf) and their any combination of power are enough provided.
Fig. 3, which is that the present invention is a kind of, to exempt to survey second of embodiment diagrammatic cross-section for adjusting constant current to match somebody with somebody water regulating valve.Mainly by
Valve body (1), supporter (2), balance plate (3) three parts composition.(1) side of valve body is provided with entrance (101), entrance (101)
For circle, valve body (1) another side, which is provided with, exports oil nozzle (102), and most water in water injection well can enter through entrance (101)
Enter flow chamber (6), then annular space (7) is flowed into by outlet oil nozzle (102)；Supporter (2) is uncovered cylinder, and its bottom is provided with circular hole
It is easy to fluid to be flowed into from flow chamber (6), and supporter (2) can also provide support to spring (302)；Balance plate (3) is disk
Type, supporter (2) inside is located at, balance plate (3) upper surface is connected with package (301), balance plate (3) lower surface and spring
(302), adjustment means (303) are connected；Adjustment means (303) lower end is circular arc sheet；Package (301) is internally formed chamber
(5), the fraction water in water injection well can enter chamber (5) through pilot passage (4).
It should be appreciated that for convenience of the understanding of association area researcher, both the above case study on implementation only illustrates one
Individual outlet and the situation that outlet is located to valve body (1) bottom and side, but outlet number and outlet port can appear in
Any rational place, these belong to the claim of the present invention.
The operation principle of the present invention is illustrated in conjunction with Fig. 1 below.Water pressure in water injection well is P1, by pilot passage
(4) balance plate (3) upper surface is acted on after entering chamber (5), direction is downward；Water is after entrance (101) enters flow chamber (6)
Pressure is P2, balance plate (3) lower surface is acted on, direction is upward；The inner water of flow chamber (6) enters ring through exporting oil nozzle (102)
Pressure after empty (7) is P3。
Balance plate (3) mechanical balance formula is：
G+P1A-P2A-KX=0 (formula 1)
Balanced relationship is between flow chamber (6) and annular space (7)：
P2-P3=KυρQ2(formula 2)
Wherein：
G-balance plate (3) and adjustment means (303) gravity sum, N；
A-balance plate (3) area, mm2；
P1- water filling well pressure, Mpa；
P2- flowing chamber pressure, Mpa；
P3The pressure of-oil reservoir, Mpa；
K-the elastic coefficient, N/mm；
X-spring displacement, mm；
Kυ- oil nozzle constant；
The density of ρ-water；
Flow of the Q-water Jing Guo regulating valve；
Simultaneous formula 1 and formula 2 can obtain：
It can be obtained according to formula (4), pressure difference △ P=(P1–P3) change when, elastic force KX is corresponding to be adjusted；According to formula
And oil nozzle constant K (3)υ, water density p be constant, it is a steady state value that can obtain the flow Q of water during regulating valve works.
Claims (7)
- Constant current is adjusted to match somebody with somebody water regulating valve 1. one kind is exempted to survey, it is characterised in that：It includes valve body (1), supporter (2), balance plate (3) three Individual part；Valve body (1) is provided with entrance (101) and flowed into for water body, and outlet oil nozzle (102) flows out for water body, pilot passage (4) it is used for water filling well pressure introduction chamber room (5)；Supporter (2) is located at valve body (1) inside, for giving spring (302) to provide branch Support；Balance plate (3) is located at supporter (2) inside, upper surface connection package (301), lower surface connecting spring (302) and regulation structure Part (303), for obtaining the pressure of chamber (5) and flow chamber (6).
- Constant current is adjusted to match somebody with somebody water regulating valve 2. one kind according to claim 1 is exempted to survey, it is characterised in that：The outlet oil nozzle (102) valve body (1) bottom and side can be located at, and quantity is more than or equal to 1.
- Constant current is adjusted to match somebody with somebody water regulating valve 3. one kind according to claim 1 is exempted to survey, it is characterised in that：Described entrance (101) Section can be circular or other arbitrary shapes, and quantity is more than or equal to 1.
- Constant current is adjusted to match somebody with somebody water regulating valve 4. one kind according to claim 1 is exempted to survey, it is characterised in that：The spring (302) is right Balance plate (3) provides upward elastic force, and can be by other components (such as spring leaf) that can provide power and its any group Conjunction is replaced.
- Constant current is adjusted to match somebody with somebody water regulating valve 5. one kind according to claim 1 is exempted to survey, it is characterised in that：On the package (301) End is connected on valve body (1), under terminate at balance plate (3) upper surface, for by chamber (5) and the separation of flow chamber (6) interior water body Open, while package (301) can change any component (such as special film) with separation function into.
- Constant current is adjusted to match somebody with somebody water regulating valve 6. one kind according to claim 1 is exempted to survey, it is characterised in that：The tune structural member (303) lower end is cone or circular arc sheet.
- Constant current is adjusted to match somebody with somebody water regulating valve 7. one kind according to claim 1 is exempted to survey, it is characterised in that：The balance plate (3) by Adjustment means (303) can be driven to move up and down during power imbalance, adjustment means (303) can change water body and enter when moving up and down The size of mouth oil nozzle (102) passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710635334.XA CN107355204B (en) | 2017-07-30 | 2017-07-30 | One kind, which is exempted to survey, adjusts constant current with water regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710635334.XA CN107355204B (en) | 2017-07-30 | 2017-07-30 | One kind, which is exempted to survey, adjusts constant current with water regulating valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107355204A true CN107355204A (en) | 2017-11-17 |
| CN107355204B CN107355204B (en) | 2019-12-03 |
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ID=60285202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710635334.XA Active CN107355204B (en) | 2017-07-30 | 2017-07-30 | One kind, which is exempted to survey, adjusts constant current with water regulating valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN107355204B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110500072A (en) * | 2019-09-11 | 2019-11-26 | 中国石油大学(北京) | Fluctuation-type water filling device and flood pattern |
| CN117145437A (en) * | 2023-08-31 | 2023-12-01 | 成都北方石油勘探开发技术有限公司 | Acidizing fluid injection tool of accuse water completion |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3974876A (en) * | 1975-09-15 | 1976-08-17 | Taylor Julian S | Downhole fluid flow regulator |
| CN2282065Y (en) * | 1996-12-04 | 1998-05-20 | 营口市仪表厂 | Adjustable constant flow water injection mandrel |
| CN2557695Y (en) * | 2002-04-16 | 2003-06-25 | 中国三江航天集团远方科技开发公司 | Constant current water injection well choke |
| CN2641285Y (en) * | 2003-08-11 | 2004-09-15 | 中国三江航天集团远方科技开发公司 | Constant flow water tap |
| CN2716499Y (en) * | 2004-08-12 | 2005-08-10 | 郭建晔 | Automatic adjustment constant water nozzle |
| CN203321466U (en) * | 2013-06-05 | 2013-12-04 | 中国石油天然气股份有限公司 | Mechanical self-regulation steady-flow device |
-
2017
- 2017-07-30 CN CN201710635334.XA patent/CN107355204B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3974876A (en) * | 1975-09-15 | 1976-08-17 | Taylor Julian S | Downhole fluid flow regulator |
| CN2282065Y (en) * | 1996-12-04 | 1998-05-20 | 营口市仪表厂 | Adjustable constant flow water injection mandrel |
| CN2557695Y (en) * | 2002-04-16 | 2003-06-25 | 中国三江航天集团远方科技开发公司 | Constant current water injection well choke |
| CN2641285Y (en) * | 2003-08-11 | 2004-09-15 | 中国三江航天集团远方科技开发公司 | Constant flow water tap |
| CN2716499Y (en) * | 2004-08-12 | 2005-08-10 | 郭建晔 | Automatic adjustment constant water nozzle |
| CN203321466U (en) * | 2013-06-05 | 2013-12-04 | 中国石油天然气股份有限公司 | Mechanical self-regulation steady-flow device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110500072A (en) * | 2019-09-11 | 2019-11-26 | 中国石油大学(北京) | Fluctuation-type water filling device and flood pattern |
| CN117145437A (en) * | 2023-08-31 | 2023-12-01 | 成都北方石油勘探开发技术有限公司 | Acidizing fluid injection tool of accuse water completion |
| CN117145437B (en) * | 2023-08-31 | 2024-05-07 | 成都北方石油勘探开发技术有限公司 | Acidizing fluid injection tool of accuse water completion |
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| Publication number | Publication date |
|---|---|
| CN107355204B (en) | 2019-12-03 |
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| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Haitao Inventor after: Cui Xiaojiang Inventor after: Liu Yigang Inventor after: Zhang Yunbao Inventor after: Zhang Nan Inventor after: Quan Li Inventor after: Zhao Jing Inventor after: Liu Feihang Inventor before: Li Haitao Inventor before: Cui Xiaojiang Inventor before: Zhang Nan Inventor before: Quan Li Inventor before: Zhao Jing Inventor before: Liu Feihang |
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