CN105863582A - Oilfield water injection device - Google Patents

Oilfield water injection device Download PDF

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Publication number
CN105863582A
CN105863582A CN201510025728.4A CN201510025728A CN105863582A CN 105863582 A CN105863582 A CN 105863582A CN 201510025728 A CN201510025728 A CN 201510025728A CN 105863582 A CN105863582 A CN 105863582A
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CN
China
Prior art keywords
pump
water
water injection
outlet
dosing
Prior art date
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.)
Pending
Application number
CN201510025728.4A
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Chinese (zh)
Inventor
陆小兵
陆红军
黄伟
姚斌
巨亚锋
王守虎
张随望
王勇
宋昭杰
隋蕾
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Petrochina Co Ltd
China Petroleum and Natural Gas Co Ltd
Original Assignee
China Petroleum and Natural Gas Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China Petroleum and Natural Gas Co Ltd filed Critical China Petroleum and Natural Gas Co Ltd
Priority to CN201510025728.4A priority Critical patent/CN105863582A/en
Publication of CN105863582A publication Critical patent/CN105863582A/en
Pending legal-status Critical Current

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Abstract

The invention provides an oilfield water injection device. The device comprises a dosing pot, a dosing pump, and a water injection pump. The dosing pot comprises a dosing inlet and an outlet. The outlet of the dosing pot is communicated with the inlet of the dosing pump. The dosing pump is a diaphragm metering pump. The inlet of the water injection pump is communicated with the water outlet pipe of a water injection station. The outlet of the water injection pump is connected with a first outlet of the dosing pump and is communicated with the water injection pipe of a water injection well. The dosing pump also comprises a second outlet. The second outlet is communicated with the inlet of the dosing pot through a reflux pipeline. The oilfield water injection device can improve water injection pressure to achieve an objective of water injection well stimulation, and realizes to fill medicament on line to dredge reservoir blocking, and improves water absorption capacity of a water injection well. Correspondingly, after a stratum is dredged, water injection pressure is reduced, so just short-term high-pressure water injection is needed, and damages of a water injection pipeline and a stratum caused by long-term high-pressure water injection.

Description

A kind of oil-field water injection device
Technical field
The present invention relates to a kind of oil-field flooding technology, particularly relate to a kind of oil-field water injection device.
Background technology
In oilfield development process, along with the growth of recovery time, will constantly consume the energy of oil reservoir own Amount, formation pressure will constantly decline, and makes underground crude oil deaerate in a large number, and viscosity increases, and oil well output is big Big minimizing, even can stop-spraying stop production, and causes underground to remain a large amount of dead oils and can adopt out.In order to make up crude oil The underground caused after extraction is in debt, keeps or improves formation pressure, it is achieved oil field stable high yield, and obtaining Recovery ratio that must be higher, it is necessary to oil field is carried out water filling.
During water flooding, due to foreign liquid and reservoir rock mineral and reservoir fluid etc. It is incompatible, the existence of suspended material, microorganism and metabolite in water, and paraffin, drip in crude oil Blue or green colloids etc. separate out, and often cause formation blockage, make water injection well water absorbing capacity decline, affect crude oil production. In order to inject water into stratum, existing method is that water injection well is implemented physically or chemically well stimulation, dredges Logical formation blockage.But the effect duration of this kind of unblocking and injection increasing measure is short, effectiveness is low.Therefore can only be continuous Improve water injection well injection pressure, it is ensured that well injecting enough water.
At present, oil field at home uses the pressure-raising equipment such as plunger displacement pump and centrifugal tundish to improve water injection well note Enter the pressure-raising equipment such as pressure, Oilfields many employings positive displacement pump, vertical turbine pump and submersible electric pump.But No matter using which kind of pressure-raising equipment, long-term high pressure water injection may cause waterflood-transmission line to rupture, and water under high pressure is gone out Staff and the equipment of surrounding can be damaged, there is certain security risk, the most long-term high pressure Water filling also results in reservoir particle migration, along with the continuous rising of water injection pressure, may finally cause stratum Pressure break, and then cause oil well water breakthrough.
Summary of the invention
The present invention provides a kind of oil-field water injection device, effectively prevent long-term high pressure water injection to waterflood-transmission line and The injury that stratum is caused.
The oil-field water injection device that the embodiment of the present invention provides includes: grug feeding jar, dosing pump and water injecting pump;Institute Stating grug feeding jar and include dosing entrance and exit, the outlet of described grug feeding jar connects with the entrance of described dosing pump; Described dosing pump is diaphragm metering pump;The entrance of described water injecting pump connects with the outlet pipe of water-injection station, described Water filling delivery side of pump connects with the water injection pipe of water injection well after the first outlet header of described dosing pump;Described Dosing pump also includes that the second outlet, described second outlet are connected by reflux pipeline with described grug feeding jar entrance.
The oil-field water injection device that the present invention provides, by water injection equipment and chemicals dosing plant are integrated, And inject in water injection well after waterflood-transmission line and dosing pipeline are carried out high pressure header, water injection pressure can be improved, Realize the purpose of water injection well stimulation, can realize again filling online medicament to dredge formation blockage, improve water filling Well water absorbing capacity, just can reduce water injection pressure, therefore have only to short-term high pressure after corresponding formation opener Water filling, effectively prevent the injury that waterflood-transmission line and stratum are caused by long-term high pressure water injection.
In one embodiment of this invention, it is provided with single current between the first outlet and the header of above-mentioned dosing pump Valve and high-pressure balancing stop valve, above-mentioned reflux pipeline is provided with air relief valve.
In one embodiment of this invention, set between the pump housing and the motor of described water injecting pump of above-mentioned water injecting pump It is equipped with supercharging seal protector.
In one embodiment of this invention, also set between outlet and the above-mentioned dosing pump entrance of above-mentioned grug feeding jar It is equipped with y-type filter.
In one embodiment of this invention, above-mentioned grug feeding jar is additionally provided with level sensor, above-mentioned barrier film First outlet of dosing pump is provided with pressure transducer and flow transducer, and above-mentioned water filling delivery side of pump is arranged There are pressure transducer and flow transducer.
In one embodiment of this invention, frequency-conversion control cabinet, described frequency-conversion control cabinet and described note are also included Water pump and the electrical connection of described dosing pump.
In one embodiment of this invention, also include skid base, described grug feeding jar, described dosing pump, Described water injecting pump and described frequency-conversion control cabinet are mounted on described skid base.
In one embodiment of this invention, remote control equipment, described remote control equipment and institute are also included State frequency-conversion control cabinet electrical connection.
In one embodiment of this invention, above-mentioned grug feeding jar is additionally provided with stirred tank.
Based on technique scheme, the embodiment of the present invention is when carrying out oil-field flooding, by by water injection equipment Integrate with chemicals dosing plant, and waterflood-transmission line and dosing pipeline are carried out injection water filling after high pressure header In well, water injection pressure can be improved, it is achieved the purpose of water injection well stimulation, can realize again filling medicament online Dredge formation blockage, improve water injection well water absorbing capacity, after corresponding formation opener, just can reduce water filling Pressure, therefore has only to short-term high pressure water injection, effectively prevent long-term high pressure water injection to waterflood-transmission line and ground The injury that layer causes.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, in embodiment being described below The required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is this Some bright embodiments, for those of ordinary skill in the art, are not paying creative work Under premise, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The oil-field water injection device schematic diagram that Fig. 1 provides for one embodiment of the invention;
The oil-field water injection device schematic diagram that Fig. 2 provides for another embodiment of the present invention;
The oil-field water injection device schematic diagram that Fig. 3 provides for yet another embodiment of the invention;
The oil-field water injection device entirety top view that Fig. 4 provides for one embodiment of the invention.
Description of reference numerals:
10: grug feeding jar;
11: dosing entrance;
12: the outlet of grug feeding jar;
13: stirred tank;
20: water injecting pump;
21: the entrance of water injecting pump;
22: water filling delivery side of pump;
23: water injecting pump motor
30: dosing pump, diaphragm metering pump;
31: dosing pump entrance;
32: the first outlet of dosing pump;
33: the second outlet of dosing pump;
34: metering diaphragm pump motor;
41: at header;
42: the outlet pipe of water-injection station;
43: the water injection pipe of water injection well;
44:Y type filter;
45: supercharging seal protector;
46: reflux pipeline;
A: level sensor;
B: pressure transducer;
C: flow transducer;
50: frequency-conversion control cabinet;
60: skid base.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with this Accompanying drawing in bright embodiment, is clearly and completely described the technical scheme in the embodiment of the present invention, Obviously, described embodiment is a part of embodiment of the present invention rather than whole embodiments.Based on Embodiment in the present invention, those of ordinary skill in the art are obtained under not making creative work premise The every other embodiment obtained, broadly falls into the scope of protection of the invention.
The oil-field water injection device schematic diagram that Fig. 1 provides for one embodiment of the invention.As it is shown in figure 1, this reality The oil-field water injection device that executing example provides includes: grug feeding jar 10, dosing pump 30 and water injecting pump 20, grug feeding jar 10 include dosing entrance 11 and grug feeding jar outlet 12, the outlet 12 of grug feeding jar and the entrance 31 of dosing pump Connection, the entrance 21 of water injecting pump connects with the outlet pipe 42 of water-injection station, water filling delivery side of pump 22 and dosing First outlet 32 of pump at header after 41 headers water injection pipe 43 with water injection well connect.
Parts identical in Fig. 2 with Fig. 1 use identical label.On the basis of Fig. 1, such as Fig. 2 institute Showing, on the basis of embodiment illustrated in fig. 1, dosing pump also includes that the second outlet 33, dosing pump second go out Mouth 33 is connected by reflux pipeline 46 with grug feeding jar entrance 11.
Concrete, grug feeding jar 10 is additionally provided with stirred tank 13, in order to when allocating medicament, accelerates solid Medicament dissolution.
It should be noted that in the present embodiment, it is preferred that dosing pump 30 can select diaphragm metering pump. Dosing pump 30 dissolves the pressure of the medicinal liquid mixed for improving, in order to medicinal liquid can be with water injecting pump outlet Water under high pressure carries out header.Owing to added medicinal liquid is mainly used in bottom dredging, play the purpose of unblocking and injection increasing, Therefore medicinal liquid has certain corrosivity, therefore conventional pressure-raising equipment can not be for promoting medicinal liquid pressure. Hydraulic Diaphragm Metering Pump drives barrier film equably owing to have employed hydraulic oil, overcomes mechanically direct driving side Under formula, the shortcoming of pump diaphragm stress undue concentration, improves membrane life and maximum working pressure.Diaphragm type The flexible partition that dosing pump utilizes particular design to process replaces piston, realizes reciprocal under drive mechanism effect Motion, completes suction-discharge process.Due to the buffer action of barrier film, be structurally truly realized by Isolation between metering fluid and driving lubricating structure.The design of high-tech structure and the selection of new material Substantially increase the service life of barrier film, add the corrosion resistance characteristic that composite is excellent, diaphragm type Dosing pump becomes the main force's pump-type in fluid metering application.
It is another it should be noted that each equipment of oil-field water injection device that the present embodiment provides is connected by pipeline, On the one hand, major part pipeline is for conveying high-pressure liquid, for the sake of security, it is necessary in each communicating pipe Being additionally provided with various adpting flange, and various valve body on line, such as ball-and-seat, high-pressure stop valve, subtract Pressure valve, exhaust-valve etc., piping material also should select the tubing with high voltage performance, for pipeline it Between connection form and the demand of the actual industrial and mineral of kind of valve body that used depending on, the present embodiment pair This does not do any restriction.On the other hand, the pipeline being used for carrying medicinal liquid also should have Corrosion Protection. Such as can select 316L structural section, it has high pressure resistant 30MPa and etch-proof performance.
As a kind of optional embodiment of the present embodiment, water injecting pump 20 can select plunger displacement pump, centrifugal The pressure-raising equipment such as water injecting pump, Magnetic drive horizontal flood pump, electric submersible pump, the present embodiment is with centrifugal note Schematically illustrate as a example by water pump.
In actual applications, the water of the outlet pipe of water-injection station enters pump through the entrance of centrifugal tundish Body, is rotated by pump shaft impeller by motor, does work water, makes water pressure be incremented to step by step Specification requirement, and it is transported to the port of export, reach the purpose of supercharging.De-plugging is increased by chemicals dosing plant by stirred tank Injection agent is stirred, and is delivered to metering diaphragm pump intake, barrier film meter by the outlet of the grug feeding jar of lower end After amount pump carries out unblocking and injection increasing medicament to be pressurized to centrifugal tundish outlet unanimously, through diaphragm metering pump The pipeline that outlet connects enters and carries out header, finally by water and medicine at centrifugal tundish outlet header Agent is injected in water injection well commonly through water injection well water main.After the medicament of filling enters reservoir, miscellaneous with reservoir Reservoir can be dredged after qualitative response.Generally, medicament reacts with reservoir impurity and takes around several days Time, water injection well water absorbing capacity can be improved after formation opener, accordingly, in this way it is no longer necessary to improve water filling Pressure realizes the purpose of water injection well stimulation.
The oil-field water injection device that the present embodiment provides, when carrying out oil-field flooding, by by water injection equipment and Chemicals dosing plant integrates, and waterflood-transmission line and dosing pipeline carry out injection water injection well after high pressure header In, water injection pressure can be improved, it is achieved the purpose of water injection well stimulation, can realize again filling medicament online Dredging formation blockage, improves water injection well water absorbing capacity, just can reduce water filling pressure after corresponding formation opener Power, therefore has only to short-term high pressure water injection, effectively prevent long-term high pressure water injection to waterflood-transmission line and stratum The injury caused.
Obviously, when being no longer necessary to high pressure water injection, also it is no need for re-using water injecting pump, it is also possible to save note Water pump use electric consumption.
In actual applications, the medicament in dosing pump also needs to according to the flow set through the first outlet even The pipeline connect enters and carries out header at centrifugal tundish outlet header.Along with the online filling medicament time Growth, the consumption of filling medicament can be set according to actual condition, when medicament demand is less, logical Crossing and the first outlet is carried out flow-control, the most unnecessary medicament can be by reflux pipeline recycling to dosing In tank, reduce the operating frequency of the motor of dosing pump simultaneously.
In actual applications, diaphragm metering pump first export and can also arrange between header ball-and-seat, With high-pressure balancing stop valve, guarantee high pressure medicinal liquid and the water injecting pump outlet of diaphragm metering pump the first outlet Water under high pressure carries out header.
In actual applications, it is also possible to air relief valve is set on reflux pipeline 46, simultaneously reflux pipeline 46 One section of longer separator tube can also be included, can effectively prevent high pressure medicinal liquid from entering grug feeding jar to grug feeding jar Damaging, the medicinal liquid being simultaneously also prevented from grug feeding jar is rushed out.
Optionally, it is additionally provided with supercharging between the pump housing and the motor of water injecting pump of water injecting pump 20 and seals protection Device, supercharging seal protector is possible not only to effectively guarantee water filling pump performance, it is also possible to effectively prevents and notes The water outlet pipeline water seepage of the water-injection station that pump entrance connects, and then can effectively protect water injecting pump motor.
Further, as a kind of optional embodiment of the present embodiment, outlet 12 He of above-mentioned grug feeding jar It is additionally provided with y-type filter 44 between the entrance 31 of dosing pump.
In actual applications, it is sufficiently stirred for medicament dissolving even if grug feeding jar is provided with stirred tank, But it is difficult to dissolved impurity by the medicinal liquid that grug feeding jar exports still may carry part, these impurity May blocking feed-line, and if these impurity enter into diaphragm metering pump, barrier film meter will be damaged Amount pump, the serious diaphragm metering pump that also can result in cannot be properly functioning, brings potential safety hazard.This enforcement Example, can by the y-type filter 44 arranged between the outlet 12 and the entrance 31 of dosing pump of grug feeding jar So that the impurity in medicinal liquid is carried out filtration treatment, effectively solve in medicinal liquid impurity blocking pipeline or enter into every Film dosing pump, causes the problem that diaphragm metering pump damages.
The oil-field water injection device that the present embodiment provides, when carrying out oil-field flooding, by by water injection equipment and Chemicals dosing plant integrates, and waterflood-transmission line and dosing pipeline carry out injection water injection well after high pressure header In, water injection pressure can be improved, it is achieved the purpose of water injection well stimulation, can realize again filling medicament online Dredging formation blockage, improves water injection well water absorbing capacity, just can reduce water filling pressure after corresponding formation opener Power, therefore has only to short-term high pressure water injection, effectively prevent long-term high pressure water injection to waterflood-transmission line and stratum The injury caused.Further, by the second outlet of water injecting pump with grug feeding jar entrance by reflux pipeline even Logical, in working conditions change, after adjusting medicament usage amount, can in time unnecessary medicament be reclaimed.Logical Cross the y-type filter that simple in construction is set, can effectively protect pipeline and diaphragm metering pump.
The oil-field water injection device schematic diagram that Fig. 3 provides for yet another embodiment of the invention, Fig. 3 and Fig. 1, Fig. 2 In identical parts use identical label.As Fig. 3 shows, the oil-field water injection device that the present embodiment provides, On the basis of embodiment illustrated in fig. 2, grug feeding jar 10 is additionally provided with level sensor A, dosing pump First outlet 32 is additionally provided with pressure transducer B and flow transducer C, and water filling delivery side of pump 22 also sets It is equipped with pressure transducer B and flow transducer C.
During water flooding, need multiple water injection wells are carried out water filling, according to water injection well not With, required water injection pressure and water injection rate are also different.Therefore may also need during water filling Water injection pressure and water injection rate are monitored.The oil-field water injection device that the present embodiment provides is by water filling First outlet of pump and dosing pump is respectively provided with pressure transducer and flow transducer, convenient to water injection pressure Monitoring is implemented with water injection rate.
Preferably, it is also possible to the data that each sensor is gathered by wireless sensor network send to Oil-field flooding digital monitoring platform, can react the running status of water filling device, it is not necessary to pacify specially in time Row's duty personnel's field monitoring.
It is appreciated that the height of high pressure medicinal liquid and the water injecting pump outlet realizing dosing pump the first outlet for convenience The header of setting-out, it should be ensured that the pressure of the medicinal liquid of dosing pump the first outlet and the pressure of the water of water injecting pump outlet Power is suitable, or the pressure of the medicinal liquid of dosing pump the first outlet is slightly above the pressure of the water that water injecting pump exports. Exporting and the pressure transducer of water injecting pump outlet according to being arranged at dosing pump first, workmen can be clear Learn how to control dosing pump motor and the operating frequency of water injecting pump motor, so that realize can header requirement.
It is noted that the oil-field water injection device that the present invention provides also includes frequency-conversion control cabinet, frequency conversion control Cabinet processed electrically connects with water injecting pump and described dosing pump.Such as, when needs change water injection pressure, Ke Yitong Cross frequency-conversion control cabinet regulation dosing pump motor and the operating frequency of water injecting pump motor, the most conveniently realize water filling Pressure regulates, it is also possible to that saves motor uses electric consumption.
The oil-field water injection device that the present embodiment provides, when carrying out oil-field flooding, by by water injection equipment and Chemicals dosing plant integrates, and waterflood-transmission line and dosing pipeline carry out injection water injection well after high pressure header In, water injection pressure can be improved, it is achieved the purpose of water injection well stimulation, can realize again filling medicament online Dredging formation blockage, improves water injection well water absorbing capacity, just can reduce water filling pressure after corresponding formation opener Power, therefore has only to short-term high pressure water injection, effectively prevent long-term high pressure water injection to waterflood-transmission line and stratum The injury caused.Further, by arranging various kinds of sensors, monitor the operation shape of water filling device in real time State, provides accurate foundation for staff according to Operating condition adjustment water injection rate and water injection pressure.
Below in conjunction with Fig. 4, the oil-field water injection device in the above embodiment of the present invention is made the most in detail Explanation.It is appreciated that following embodiment is used to illustrate technical scheme, and is not used for limiting The present invention processed.
The oil-field water injection device entirety top view that Fig. 4 provides for one embodiment of the invention, Fig. 4 and Fig. 1-3 Identical parts use identical label.As Fig. 4 shows, the oil-field water injection device that the present invention provides, specifically May include that grug feeding jar 10, water injecting pump 20, diaphragm metering pump 30 and frequency-conversion control cabinet 50, water injecting pump 20 include that the pump housing and motor, supercharging seal protector 45 are arranged between the water injecting pump pump housing and motor, its Annexation between its each parts refer to the specific descriptions of embodiment described in Fig. 1-3, the most superfluous at this State.
As one preferred embodiment, the oil-field water injection device that above-described embodiment provides can also pass through Remote control equipment is controlled.Concrete, can be by remote control equipment and described frequency-conversion control cabinet Electrical connection.
In actual applications, remote control equipment can detect each level sensor A, flow transducer B And the data of pressure transducer C, control frequency-conversion control cabinet, then frequency conversion according to the remote data detected Switch board can be according to the instruction corresponding regulation dosing pump motor of remote control equipment and water injecting pump motor Operating frequency.
In actual applications, remote control equipment can also detect each on-off model in frequency-conversion control cabinet, Carry out detecting system running status.
In actual applications, it is preferred that a skid base 60 can also be set, by above-mentioned grug feeding jar 10, Water injecting pump 20 and diaphragm metering pump 30 are installed on skid base 60.It is appreciated that according to actual needs, Open and frequency-conversion control cabinet 50 also can be installed on skid base 60.Facilitate whole device in different injection Move between well.
The oil-field water injection device that the embodiment of the present invention provides specifically can apply to the mistake of water injection well in oil fields water filling Cheng Zhong.On the one hand, this oil-field water injection device can directly be connected with normal pressure water source, is directly used in pressure-raising note Water.On the other hand, this oil-field water injection device can connect with high pressure water injection pipeline, it is achieved online augmented injection fall Pressure.Such as, when water injection well distance water-injection station farther out time, water-injection station output water under high pressure through long-distance After feed-line, when arriving water injection well, hydraulic pressure cannot meet the water injection pressure requirement of water injection well, this The oil-field water injection device that just water-injection station high pressure water injection pipeline can be provided with the embodiment of the present invention in the case of Zhong Connection, carries out secondary pressure-raising to water-injection station water, to reach the water injection pressure requirement of water injection well.
Being appreciated that and there is multiple water injection well in whole oil field region, each water injection well is to water injection pressure Demand be not quite similar, the oil-field water injection device provided by the embodiment of the present invention, at high oil field water injection Online augmented injection blood pressure lowering is realized on pipeline.The discharge pressure of water-injection station has only to meet the water filling of general water injection well Pressure, for individual other water injection well exigent to water injection pressure, it is only necessary in the high pressure injection of water-injection station Connect the oil-field water injection device that the embodiment of the present invention provides on water pipeline, so, be possible not only to Reduce the power consumption of water-injection station, it is also possible to realize water-injection station and multiple water injection wells are carried out water filling simultaneously.Enter One step, after the medicament of filling enters reservoir, reservoir after reacting with reservoir impurity, can be dredged, improve note Well water absorbing capacity, just can reduce water injection pressure, the most also avoid the need for making after corresponding formation opener With online augmented injection dropping equipment.
The oil-field water injection device that the embodiment of the present invention provides, when carrying out oil-field flooding, by setting water filling Standby and chemicals dosing plant integrates, and waterflood-transmission line and dosing pipeline carry out injection note after high pressure header In well, water injection pressure can be improved, it is achieved the purpose of water injection well stimulation, can realize again adding injection online Formation blockage is dredged in agent, improves water injection well water absorbing capacity, just can reduce note after corresponding formation opener Water pressure, therefore has only to short-term high pressure water injection, effectively prevent long-term high pressure water injection to waterflood-transmission line and The injury that stratum is caused.
Concrete, that this device mainly has four aspects advantage: one is that water injecting pump adopts can be with preferred structure Simply, power consumption and the low conventional pressure-raising pump of noise.Two is to be integrated with high pressure chemicals dosing plant, can connect online Continue and add unblocking and injection increasing medicament, to improve water injection well water absorbing capacity.Three is to use tele-control system, logical Cross the equipment such as wireless senser, it is possible to achieve achieve seamless link with oil-field flooding digital Platform.Four It is that this device uses skid structure, convenient dismounting transfer between each water injection well.
Last it is noted that various embodiments above is only in order to illustrate technical scheme, rather than right It limits;Although the present invention being described in detail with reference to foregoing embodiments, this area common Skilled artisans appreciate that the technical scheme described in foregoing embodiments still can be modified by it, Or the most some or all of technical characteristic is carried out equivalent;And these amendments or replacement, and The essence not making appropriate technical solution departs from the scope of various embodiments of the present invention technical scheme.

Claims (9)

1. an oil-field water injection device, it is characterised in that including: grug feeding jar, dosing pump and water injecting pump;
Described grug feeding jar includes dosing entrance and exit, the outlet of described grug feeding jar and entering of described dosing pump Mouth connection;Described dosing pump is diaphragm metering pump;
The entrance of described water injecting pump connects with the outlet pipe of water-injection station, and described water filling delivery side of pump adds with described Connect with the water injection pipe of water injection well after first outlet header of Teat pipette;
Described dosing pump also includes the second outlet, and described second outlet and described grug feeding jar entrance are by refluxing Pipeline connects.
Device the most according to claim 1, it is characterised in that described dosing pump first outlet with It is provided with ball-and-seat and high-pressure balancing stop valve between header, described reflux pipeline is provided with air relief valve.
Device the most according to claim 1, it is characterised in that the pump housing of described water injecting pump is with described Supercharging seal protector it is provided with between the motor of water injecting pump.
Device the most according to claim 1, it is characterised in that the outlet of described grug feeding jar and described It is additionally provided with y-type filter between dosing pump entrance.
Device the most according to claim 1, it is characterised in that be additionally provided with water in described grug feeding jar Level sensor, the first outlet of described diaphragm metering pump is provided with pressure transducer and flow transducer, institute State water filling delivery side of pump and be provided with pressure transducer and flow transducer.
6. according to the device described in any one of Claims 1 to 5, it is characterised in that also include VFC Cabinet, described frequency-conversion control cabinet electrically connects with described water injecting pump and described dosing pump.
Device the most according to claim 6, it is characterised in that also include skid base, described in add Medicinal cupping, described dosing pump, described water injecting pump and described frequency-conversion control cabinet are mounted on described skid base.
Device the most according to claim 7, it is characterised in that also include remote control equipment, institute State remote control equipment to electrically connect with described frequency-conversion control cabinet.
Device the most according to claim 1, it is characterised in that be additionally provided with in described grug feeding jar and stir Mix still.
CN201510025728.4A 2015-01-19 2015-01-19 Oilfield water injection device Pending CN105863582A (en)

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Application Number Priority Date Filing Date Title
CN201510025728.4A CN105863582A (en) 2015-01-19 2015-01-19 Oilfield water injection device

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Application Number Priority Date Filing Date Title
CN201510025728.4A CN105863582A (en) 2015-01-19 2015-01-19 Oilfield water injection device

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Publication Number Publication Date
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Publication number Priority date Publication date Assignee Title
CN1526913A (en) * 2003-03-07 2004-09-08 群 里 Oil field oil-water well unblocking and injection increasing method and the apparatus for implementing the same method
CN201835804U (en) * 2010-09-28 2011-05-18 大庆石油管理局 High-efficient profile control solution injection allocation vehicle group
CN201908638U (en) * 2010-12-17 2011-07-27 中国石油天然气股份有限公司 High-pressure small-displacement skid-mounted additive feeding device
CN102230578A (en) * 2011-05-26 2011-11-02 河海大学 Double-pump multi-path high-precision filling device and control method thereof
CN202250005U (en) * 2011-08-19 2012-05-30 中国石油天然气股份有限公司 Depressurization and injection-increasing device for water injection well
CN203669848U (en) * 2013-12-03 2014-06-25 中国航天科技集团公司烽火机械厂 High-pressure chemical-agent filling skid-mounted equipment
CN204532297U (en) * 2015-01-19 2015-08-05 中国石油天然气股份有限公司 A kind of oil-field water injection device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1526913A (en) * 2003-03-07 2004-09-08 群 里 Oil field oil-water well unblocking and injection increasing method and the apparatus for implementing the same method
CN201835804U (en) * 2010-09-28 2011-05-18 大庆石油管理局 High-efficient profile control solution injection allocation vehicle group
CN201908638U (en) * 2010-12-17 2011-07-27 中国石油天然气股份有限公司 High-pressure small-displacement skid-mounted additive feeding device
CN102230578A (en) * 2011-05-26 2011-11-02 河海大学 Double-pump multi-path high-precision filling device and control method thereof
CN202250005U (en) * 2011-08-19 2012-05-30 中国石油天然气股份有限公司 Depressurization and injection-increasing device for water injection well
CN203669848U (en) * 2013-12-03 2014-06-25 中国航天科技集团公司烽火机械厂 High-pressure chemical-agent filling skid-mounted equipment
CN204532297U (en) * 2015-01-19 2015-08-05 中国石油天然气股份有限公司 A kind of oil-field water injection device

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Application publication date: 20160817

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