CN208830979U - The note of downhole oil-water separation based on electric pulse adopts integrated device - Google Patents
The note of downhole oil-water separation based on electric pulse adopts integrated device Download PDFInfo
- Publication number
- CN208830979U CN208830979U CN201821205801.1U CN201821205801U CN208830979U CN 208830979 U CN208830979 U CN 208830979U CN 201821205801 U CN201821205801 U CN 201821205801U CN 208830979 U CN208830979 U CN 208830979U
- Authority
- CN
- China
- Prior art keywords
- electric pulse
- oil
- water
- screw pump
- pipe
- 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.)
- Active
Links
Landscapes
- Electrostatic Separation (AREA)
Abstract
The note that the utility model provides the downhole oil-water separation based on electric pulse adopts integrated device, it includes the extraction screw pump being sequentially connected in series on oil pipe from top to bottom, electric pulse oily-water seperating equipment, injection screw pump and eye pipe, it is connected to central tube below lower ball-and-seat, the bottom end of central tube and oil pipe passes through plug and blocks；Liquid outlet is opened up on tubing wall between lower ball-and-seat and eye pipe, opens up the water filling port being connected to oil jacket annulus on the tube wall of the central tube below eye pipe.Compared with physics dehydration under conventional well, electric pulse oily-water seperating equipment has the characteristics that electric field stability is good, dehydration efficiency is high.The water-oil separating of the utility model collection, extraction, function of injecting and one, surface technology is simple, effectively reduce water circulation link, save cost, the water injection stratum isolated, the stratum energy that formation damage caused by outside fluid can be reduced and can be replenished in time in the well control range, facilitates oil well long term stable production.
Description
Technical field
The utility model belongs to oil extraction in oil field technical field, and in particular to a kind of downhole oil-water separation based on electric pulse
Note adopts integrated device.
Background technique
China's most oilfields all use waterflooding extraction mode, and as oil field development enters the middle and later periods, well water is gradually
It increases, according to statistics, China's moisture content has reached 80% or more old filed at present, and recoverable reserves accounts for the 73.1% of gross reserves.Greatly
The high water-content crude oil of amount is given rise to ground, is separated, is handled, collecting defeated and re-injection, will cause greatly production waste and warp
Ji loss.
Currently, one is Gravity Separations, and one is cyclonic separations there are two types of common downhole oil-water separation devices.Gravity
The advantages of separation, is that construction investment is lower, the disadvantage is that water-oil separating is carried out using natural subsidence separation principle, low separation efficiency, and
Due to the variation of oil well bottom pressure and the condition of production, accurate judgement grease boundary layer is unable to using Gravity separate, also can not
Determine that pump in the position and separator suction inlet position of underground, causes note to be adopted ineffective；The principle of cyclonic separation is using water
Power cyclone carries out high-speed screw rotary motion and carries out physical separation to high water-content crude oil, the disadvantage is that investment is high, underground separation
Low efficiency, and it is difficult to keep permanently effective injection, and rate of return on investment is lower.
Utility model content
The note that the utility model provides a kind of downhole oil-water separation based on electric pulse adopts integrated device and its application method.
Its purpose is first is that carry out water-oil separating, reduction water content of oil well in underground；Purpose is second is that the crude oil isolated is produced, separation
Water out is injected, and realizes that note adopts combination；Purpose is third is that improve underground separative efficiency.
For this purpose, the note that the utility model provides the downhole oil-water separation based on electric pulse adopts integrated device, it includes certainly
Extraction screw pump, electric pulse oily-water seperating equipment, injection screw pump and eye pipe on oil pipe are sequentially connected in series under, it is described
It is connected to be placed in the central tube of oil pipe inner cavity below injection screw pump, the bottom end of central tube is blocked by center pipe plug, oil
The bottom end of pipe is blocked by oil pipe plug；
Liquid outlet is opened up on tubing wall between the injection screw pump and eye pipe, the pipe of the central tube below eye pipe
The water filling port being connected to oil jacket annulus is opened up on wall.
Further, the electric pulse oily-water seperating equipment includes set on the separation of the electric pulse of oil pipe inner cavity and opening upwards
Device upper outlet, the electric pulse separator inlet for being provided on tubing wall and being connected to oil jacket annulus set on oil pipe inner cavity and are opened
It is exported under the downward electric pulse separator of mouth, is cavity inside the electric pulse oily-water seperating equipment, upper cavity, which is equipped with, to be passed through
The electric pulse separator cathode lacing film of insulating bar suspension, lower cavity are equipped with the electric arteries and veins with electric pulse separator cathode lacing film face
Separator anode lacing film is rushed, the separating liquid with outlet face under electric pulse separator is equipped with below electric pulse separator anode lacing film
Buffer platform is exported, is liquid separation cham-ber between electric pulse separator cathode lacing film and electric pulse separator anode lacing film.
Further, the electric pulse separator inlet is that the prominent flat beak shape formed is opened obliquely by the tube wall of oil pipe
Mouthful.
Further, the electric pulse separator upper outlet is opened in the upper circular baffle plate center for being fixed on tube inner wall,
The center opening of upper circular baffle plate, the edge-perpendicular in hole upwardly extend to form electric pulse separator upper outlet；The electric pulse point
The lower circular baffle plate center for being fixed on tube inner wall, the center opening of lower circular baffle plate, the edge in hole are opened in from outlet under device
It is downwardly extending under the electric pulse separator of reverse frustoconic and exports.
Further, it further includes control cabinet that the note of the downhole oil-water separation based on electric pulse, which adopts integrated device, the extraction
Screw pump passes through electric pulse oily-water seperating equipment cable, injection spiral shell by extraction screw pump cable, electric pulse oily-water seperating equipment
Bar pump is electrically connected with the control cabinet on ground respectively by injecting screw pump cable, and the control cabinet is built-in with for giving extraction spiral shell
The power supply of bar pump, electric pulse oily-water seperating equipment and injection screw pump power supply.
Further, the upper single stream for being serially connected in oil pipe is equipped between the extraction screw pump and electric pulse oily-water seperating equipment
Valve injects the lower ball-and-seat for being equipped between screw pump and eye pipe and being serially connected in oil pipe, and central tube is connected to below lower ball-and-seat, out liquid
Mouth is between lower ball-and-seat and eye pipe.
Further, the central tube is in cross, and water filling port is opened in the both ends of criss-cross horizontal tube.
Further, the note of the downhole oil-water separation based on electric pulse adopts the application method of integrated device:
The note of downhole oil-water separation based on electric pulse is adopted integrated device to be connected on oil pipe and with oil pipe tripping in
In casing, tripping in packer blocks extraction layer and implanted layer in oil jacket annulus, and the packer for making to produce at layer is located at liquid
Mouth lower section, water filling port face implanted layer, eye pipe face produce layer；
Start extraction screw pump, electric pulse oily-water seperating equipment and injection screw pump, the height for producing layer by control cabinet to contain
Water crude oil is entered the annular space of central tube and oil pipe by eye pipe, and enters oil jacket annulus by liquid outlet, finally by electric pulse point
Entering electric pulse oily-water seperating equipment from device inlet, high water-content crude oil drop under electric pulse electric field action is polarized, and
Generation absorption, collision form drop chain under the action of electric field force, and at large water droplet, the sedimentation separation from crude oil is come out for fusion, realize
Water-oil separating, the crude oil for separating upper back are lifted to ground by producing screw pump, and the water of lower part sedimentation passes through injection screw pump
Pressurization enters central tube, by water filling port re-injection to implanted layer.
The utility model has the beneficial effects that
(1) compared with physics dehydration under conventional well, the utility model electric field stability is good, dehydration efficiency is high.
(2) water-oil separating of the utility model collection, extraction, function of injecting and one are exploited compared to traditional high water cut oil field
Process does not need complicated water-oil separating, processing, collects defeated, reinjection apparatus, and surface technology is simple, effectively reduces water circulation link,
Save cost.
(3) the utility model injection is all made of screw pump with extraction, is influenced small, flow by fluid impurity content, air content
Continuous-stable, adaptability for working condition are strong.
(4) water that this well is isolated injects stratum, can reduce formation damage caused by outside fluid and this can be replenished in time
Stratum energy in well control range facilitates oil well long term stable production.
The utility model is described in further details below with reference to attached drawing.
Detailed description of the invention
Fig. 1 is that the note of the downhole oil-water separation based on electric pulse adopts the structural schematic diagram of integrated device.
Fig. 2 is the structural schematic diagram of electric pulse oily-water seperating equipment.
Description of symbols:
1. control cabinet；2. producing screw pump cable；3. electric pulse oily-water seperating equipment cable；4. injecting screw pump cable；
5. liquid outlet；6. packer；7. center pipe plug；8. oil pipe plug；9. central tube；10. water filling port；11. pipe；12. placing an order
Flow valve；13. injecting screw pump；14. electric pulse oily-water seperating equipment；Ball-and-seat on 15.；16. producing screw pump；17. casing；
18. oil pipe；
141. electric pulse separator upper outlets；142. electric pulse separator inlets；143. insulating bar；144. electric pulses point
From device cathode lacing film；145. electric pulse separator anode lacing films；146. liquid separation cham-ber；147. discharge channel buffer platforms；
It is exported under 148. electric pulse separators.
Specific embodiment
Embodiment 1:
The note of downhole oil-water separation based on electric pulse adopts integrated device, as shown in Figure 1, it includes successively going here and there from top to bottom
Connect extraction screw pump 16, electric pulse oily-water seperating equipment 14, injection screw pump 13 and eye pipe 11 on oil pipe 18, the note
The lower section for entering screw pump 13 is connected to be placed in the central tube 9 of 18 inner cavity of oil pipe, and the bottom end of central tube 9 passes through 7 envelope of center pipe plug
Stifled, the bottom end of oil pipe 18 is blocked by oil pipe plug 8；
Liquid outlet 5 is opened up on 18 wall of oil pipe between the injection screw pump 13 and eye pipe 11, positioned at 11 lower section of eye pipe
The water filling port 10 being connected to oil jacket annulus is opened up on the tube wall of central tube 9.
The note of downhole oil-water separation based on electric pulse adopt integrated device working principle or the course of work it is as follows:
The note of downhole oil-water separation based on electric pulse is adopted into integrated device and is connected to oil pipe 18 and with 18 tripping in set of oil pipe
In pipe 17, tripping in packer 6 blocks extraction layer and implanted layer in oil jacket annulus, and the packer 6 for making to produce at layer is located at
5 lower section of liquid mouth, 10 face implanted layer of water filling port, 11 face of eye pipe produce layer；
Starting extraction screw pump 16, electric pulse oily-water seperating equipment 14 and injection screw pump 13, the High water cut for producing layer are former
Oil is entered the annular space of central tube 9 and oil pipe 18 by eye pipe 11, and enters oil jacket annulus by liquid outlet 5, eventually enters into electric arteries and veins
Oily-water seperating equipment 14 is rushed, high water-content crude oil drop under electric pulse electric field action is polarized, and is sent out under the action of electric field force
Raw absorption, collision form drop chain, and at large water droplet, the sedimentation separation from crude oil is come out for fusion, water-oil separating are realized, after separation
The crude oil on top is lifted to ground by producing screw pump 16, and the water of lower part sedimentation enters center by the injection pressurization of screw pump 13
Pipe 9, by 10 re-injection of water filling port to implanted layer.
It should be strongly noted that the basic principle of electric pulse oily-water seperating equipment 14 is: high water-content crude oil is in electric pulse
Drop is polarized under electric field action, and generation absorption, collision form drop chain under the action of electric field force, and fusion is at large water droplet
Sedimentation separation comes out from crude oil, realizes water-oil separating, and the crude oil for separating upper back is lifted to ground by producing screw pump, under
The water of portion's sedimentation passes through injection screw pump re-injection to stratum.
Compared with physics dehydration under conventional well, electric pulse oily-water seperating equipment is good with electric field stability, dehydration efficiency is high
The features such as.The water-oil separating of the utility model collection, extraction, function of injecting and one exploit process compared to traditional high water cut oil field,
It does not need complicated water-oil separating, processing, collect defeated, reinjection apparatus, surface technology is simple, effectively reduces water circulation link, saves
Cost.The utility model injection is all made of screw pump with extraction, is influenced by fluid impurity content, air content small, flow is continuously steady
Fixed, adaptability for working condition is strong.Simultaneously this well isolate water injection stratum, can reduce formation damage caused by outside fluid and can and
When supplement stratum energy in the well control range, facilitate oil well long term stable production.
Embodiment 2:
On the basis of embodiment 1, as shown in Fig. 2, the electric pulse oily-water seperating equipment 14 includes being set in oil pipe 18
The electric pulse separator upper outlet 141 of chamber and opening upwards is provided with the electric pulse being connected on 18 wall of oil pipe and with oil jacket annulus
Separator inlet 142 exports 148 under 18 inner cavity of oil pipe and the electric pulse separator that Open Side Down, the electric pulse oil
It is cavity inside water separation device 14, upper cavity is equipped with the electric pulse separator cathode lacing film hung by insulating bar 143
144, lower cavity is equipped with the electric pulse separator anode lacing film 145 with 144 face of electric pulse separator cathode lacing film, electric pulse
The discharge channel buffer platform 147 for being equipped with below separator anode lacing film 145 and exporting 148 faces under electric pulse separator,
It is liquid separation cham-ber 146 between electric pulse separator cathode lacing film 144 and electric pulse separator anode lacing film 145.
The working principle of electric pulse oily-water seperating equipment 14 is as follows:
High water-content crude oil enters electric pulse oily-water seperating equipment 14 by electric pulse separator inlet 142 by oil jacket annulus
Electric pulse electric field action that is interior, being generated between electric pulse separator cathode lacing film 144 and electric pulse separator anode lacing film 145
Under, high water-content crude oil is polarized, and generation absorption, collision form drop chain under the action of electric field force, and fusion is at large water droplet
Sedimentation separation comes out from crude oil, realizes water-oil separating, and the crude oil for separating upper back enters through electric pulse separator upper outlet 141
Oil pipe 18, then it is lifted to ground by producing screw pump 16, the water of lower part sedimentation enters through exporting 148 under electric pulse separator
Oil pipe 18, and pass through injection 13 re-injection of screw pump to stratum.
It should be strongly noted that the setting of discharge channel buffer platform 147 is to delay to the water isolated
Punching, so that it exports 148 in the case where downlink process can slow transit through electric pulse separator, avoids causing to damage to it, influences it
Service life.
Embodiment 3:
On the basis of embodiment 2, as shown in Fig. 2, high water-content crude oil or oil, the water isolated smoothly flow for convenience
Out, the electric pulse separator inlet 142 is to protrude the flat mouth shaped opening formed obliquely by the tube wall of oil pipe 18.The electricity
Pulse separator upper outlet 141 is opened in the upper circular baffle plate center for being fixed on 18 inner wall of oil pipe, and the center of upper circular baffle plate is opened
Hole, the edge-perpendicular in hole upwardly extend to form electric pulse separator upper outlet 141；Outlet 148 is opened under the electric pulse separator
Set on the lower circular baffle plate center for being fixed on 18 inner wall of oil pipe, the center opening of lower circular baffle plate, the edge in hole extends downwardly shape
At exporting 148 under the electric pulse separator of reverse frustoconic.
Embodiment 4:
On the basis of embodiment 1, it further includes control cabinet 1, and the extraction screw pump 16 passes through extraction screw pump cable
2, electric pulse oily-water seperating equipment 14 passes through injection screw pump by electric pulse oily-water seperating equipment cable 3, injection screw pump 13
Cable 4 is electrically connected with the control cabinet 1 on ground respectively, and the control cabinet 1 is built-in with for extraction screw pump 16, electric pulse oil
The power supply that water separation device 14 and injection screw pump 13 are powered.
In order to facilitate staff's opening to extraction screw pump 16, electric pulse oily-water seperating equipment 14 and injection screw pump 13
Dynamic and closing, the present embodiment will be built-in with the control cabinet 1 for controlling their start and stop and be set to ground.
Embodiment 5:
On the basis of embodiment 1, it flows back in order to prevent, the extraction screw pump 16 and electric pulse oily-water seperating equipment 14
Between be equipped with and be serially connected in the upper ball-and-seat 15 of oil pipe 18, inject to be equipped between screw pump 13 and eye pipe 11 and be serially connected under oil pipe 18
Ball-and-seat 12, central tube 9 are connected to lower 12 lower section of ball-and-seat, and liquid outlet 5 is between lower ball-and-seat 12 and eye pipe 11.
Embodiment 6:
On the basis of embodiment 1, as shown in Figure 1, the central tube 9 is in cross, water filling port 10 is opened in cross
Horizontal tube both ends.
Specifically, identical as tubing diameter at the top of central tube, by variable diameter, lower diameter becomes smaller and, bottom concentric with oil pipe
There is center pipe plug in portion.Central tube top is identical as oil pipe, and lower part passes through external oil pipe by water filling port and communicates with oil jacket annulus,
As injection fluid channel.
Embodiment 7:
The note of downhole oil-water separation based on electric pulse adopts the application method of integrated device:
The note of downhole oil-water separation based on electric pulse is adopted integrated device to be connected on oil pipe 18 and with oil pipe 18
In tripping in casing 17, tripping in packer 6 blocks extraction layer and implanted layer in oil jacket annulus, and makes to produce the packer 6 at layer
Layer is produced positioned at 5 lower section of liquid outlet, 10 face implanted layer of water filling port, 11 face of eye pipe；
Start extraction screw pump 16, electric pulse oily-water seperating equipment 14 and injection screw pump 13 by control cabinet 1, produces layer
High water-content crude oil by eye pipe 11 enter central tube 9 and oil pipe 18 annular space, and by liquid outlet 5 enter oil jacket annulus, most
Electric pulse oily-water seperating equipment 14 is entered by electric pulse separator inlet 142 eventually, high water-content crude oil is in electric pulse electric field action
Lower drop is polarized, and generation absorption, collision form drop chain under the action of electric field force, and fusion is at large water droplet from crude oil
Sedimentation separation comes out, and realizes water-oil separating, and the crude oil for separating upper back is lifted to ground, lower part sedimentation by producing screw pump 16
Water by injection screw pump 13 pressurization enter central tube 9, by 10 re-injection of water filling port to implanted layer.
Compared with physics dehydration under conventional well, electric pulse oily-water seperating equipment is good with electric field stability, dehydration efficiency is high
The features such as.The water-oil separating of the utility model collection, extraction, function of injecting and one exploit process compared to traditional high water cut oil field,
It does not need complicated water-oil separating, processing, collect defeated, reinjection apparatus, surface technology is simple, effectively reduces water circulation link, saves
Cost.The utility model injection is all made of screw pump with extraction, is influenced by fluid impurity content, air content small, flow is continuously steady
Fixed, adaptability for working condition is strong.Simultaneously this well isolate water injection stratum, can reduce formation damage caused by outside fluid and can and
When supplement stratum energy in the well control range, facilitate oil well long term stable production.
Exemplified as above is only to the utility model for example, not constituting to the protection scope of the utility model
Limitation, it is all to be belonged within the protection scope of the utility model with the same or similar design of the utility model.The present embodiment
The well-known components and common structure or conventional means of the component and the structure category industry that do not describe in detail, are not chatted one by one here
It states.
Claims (7)
1. the note of the downhole oil-water separation based on electric pulse adopts integrated device, it is characterised in that: it includes successively going here and there from top to bottom
Connect extraction screw pump (16), electric pulse oily-water seperating equipment (14), injection screw pump (13) and eye pipe on oil pipe (18)
(11), it is connected to be placed in the central tube (9) of oil pipe (18) inner cavity, the bottom of central tube (9) below injection screw pump (13)
End is blocked by center pipe plug (7), and the bottom end of oil pipe (18) is blocked by oil pipe plug (8)；
Liquid outlet (5) are opened up on oil pipe (18) wall between injection screw pump (13) and eye pipe (11), are located at eye pipe (11)
The water filling port (10) being connected to oil jacket annulus is opened up on the tube wall of the central tube (9) of lower section.
2. the note of the downhole oil-water separation based on electric pulse adopts integrated device as described in claim 1, it is characterised in that: described
Electric pulse oily-water seperating equipment (14) includes the electric pulse separator upper outlet set on oil pipe (18) inner cavity and opening upwards
(141), it is provided with the electric pulse separator inlet (142) being connected on oil pipe (18) wall and with oil jacket annulus, is set to oil pipe
(18) (148) are exported under inner cavity and the electric pulse separator that Open Side Down, is inside the electric pulse oily-water seperating equipment (14)
Cavity, upper cavity are equipped with the electric pulse separator cathode lacing film (144) hung by insulating bar (143), and lower cavity is equipped with
With the electric pulse separator anode lacing film (145) of electric pulse separator cathode lacing film (144) face, electric pulse separator anode is hung
The discharge channel buffer platform (147) for being equipped with below piece (145) and exporting (148) face under electric pulse separator, electric pulse
It is between separator cathode lacing film (144) and electric pulse separator anode lacing film (145) liquid separation cham-ber (146).
3. the note of the downhole oil-water separation based on electric pulse adopts integrated device as claimed in claim 2, it is characterised in that: described
Electric pulse separator inlet (142) is to protrude the flat mouth shaped opening formed obliquely by the tube wall of oil pipe (18).
4. the note of the downhole oil-water separation based on electric pulse adopts integrated device as claimed in claim 2, it is characterised in that: described
Electric pulse separator upper outlet (141) is opened in the upper circular baffle plate center for being fixed on oil pipe (18) inner wall, upper circular baffle plate
Center opening, the edge-perpendicular in hole upwardly extend to form electric pulse separator upper outlet (141)；Go out under the electric pulse separator
Mouth (148) is opened in the lower circular baffle plate center for being fixed on oil pipe (18) inner wall, the center opening of lower circular baffle plate, the edge in hole
It is downwardly extending outlet (148) under the electric pulse separator of reverse frustoconic.
5. the note of the downhole oil-water separation based on electric pulse adopts integrated device as described in claim 1, it is characterised in that: it is also
Including control cabinet (1), the extraction screw pump (16) passes through extraction screw pump cable (2), electric pulse oily-water seperating equipment (14)
By electric pulse oily-water seperating equipment cable (3), injection screw pump (13) by injecting screw pump cable (4) respectively and on ground
Control cabinet (1) electrical connection, the control cabinet (1) be built-in with for extraction screw pump (16), electric pulse oily-water seperating equipment
(14) and injection screw pump (13) power supply power supply.
6. the note of the downhole oil-water separation based on electric pulse adopts integrated device as described in claim 1, it is characterised in that: described
The upper ball-and-seat (15) for being serially connected in oil pipe (18), note are equipped between extraction screw pump (16) and electric pulse oily-water seperating equipment (14)
Enter the lower ball-and-seat (12) for being equipped between screw pump (13) and eye pipe (11) and being serially connected in oil pipe (18), central tube (9) is connected to down
Below ball-and-seat (12), liquid outlet (5) is between lower ball-and-seat (12) and eye pipe (11).
7. the note of the downhole oil-water separation based on electric pulse adopts integrated device as described in claim 1, it is characterised in that: described
Central tube (9) is in cross, and water filling port (10) is opened in the both ends of criss-cross horizontal tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821205801.1U CN208830979U (en) | 2018-07-27 | 2018-07-27 | The note of downhole oil-water separation based on electric pulse adopts integrated device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821205801.1U CN208830979U (en) | 2018-07-27 | 2018-07-27 | The note of downhole oil-water separation based on electric pulse adopts integrated device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208830979U true CN208830979U (en) | 2019-05-07 |
Family
ID=66307490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821205801.1U Active CN208830979U (en) | 2018-07-27 | 2018-07-27 | The note of downhole oil-water separation based on electric pulse adopts integrated device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208830979U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108894759A (en) * | 2018-07-27 | 2018-11-27 | 中国石油天然气股份有限公司 | The note of downhole oil-water separation based on electric pulse adopts integrated device and its application method |
| CN111594114A (en) * | 2020-05-19 | 2020-08-28 | 中国石油天然气股份有限公司 | Double-pipe digital layered water injection system and method |
-
2018
- 2018-07-27 CN CN201821205801.1U patent/CN208830979U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108894759A (en) * | 2018-07-27 | 2018-11-27 | 中国石油天然气股份有限公司 | The note of downhole oil-water separation based on electric pulse adopts integrated device and its application method |
| CN108894759B (en) * | 2018-07-27 | 2023-09-26 | 中国石油天然气股份有限公司 | Underground oil-water separation injection and production integrated device based on electric pulse and application method thereof |
| CN111594114A (en) * | 2020-05-19 | 2020-08-28 | 中国石油天然气股份有限公司 | Double-pipe digital layered water injection system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208830979U (en) | The note of downhole oil-water separation based on electric pulse adopts integrated device | |
| CN204253095U (en) | A kind of coal mine gas extraction pipeline Auto-drainage slag-draining device | |
| CN103967473A (en) | Device and method for desanding of submarine natural gas hydrate exploitation well | |
| CN108894759A (en) | The note of downhole oil-water separation based on electric pulse adopts integrated device and its application method | |
| CN111102209B (en) | Electric submersible pump backflow lifting device and backflow lifting method applied to low-yield well | |
| CN201176867Y (en) | Intelligentized novel yield-increasing gas lift device | |
| CN204312030U (en) | A kind of for collecting well group associated gas recovery device | |
| CN207363651U (en) | A kind of system of full-automatic reinjected water or additive | |
| CN101676366B (en) | Thermoelectric composite crude oil processor | |
| CN202731870U (en) | Production-injection device for down-hole oil water separation | |
| CN202883333U (en) | Novel oil well pump special for liquid draining and gas production | |
| CN106733243B (en) | Multi-cavity cyclone type crude separation device for underground oil production | |
| CN206190269U (en) | Full -automatic recycle equipment | |
| CN207920596U (en) | Deep-sea oil gas water separation device | |
| CN201144831Y (en) | Coal bed gas well electric submersible centrifugal pump discharging and extracting device | |
| CN208830972U (en) | Flow string | |
| CN204098886U (en) | Producing well dosing supercharging device | |
| CN208634046U (en) | A kind of river water extraction safety device | |
| CN208406175U (en) | A kind of continuous liquid-liquid phase-splitter | |
| CN113818860B (en) | Underground oil-water separation device and oil-water separation method | |
| CN109973371A (en) | Tandem double acting injection-extraction pump for high-water-cut oil-producing well | |
| CN208294499U (en) | A kind of normal pressure shale gas water drainage gas production device | |
| CN103452820A (en) | Anti-sand and anti-gas lock pump for coal-bed gas mechanical on/off valve | |
| CN213823564U (en) | Geothermal development utilizes desanding gas removal equipment | |
| CN204395628U (en) | A kind of depth-averaged model filter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |