CN205591906U - Oil water separator and piece -rate system in pit - Google Patents
Oil water separator and piece -rate system in pit Download PDFInfo
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- CN205591906U CN205591906U CN201620193325.0U CN201620193325U CN205591906U CN 205591906 U CN205591906 U CN 205591906U CN 201620193325 U CN201620193325 U CN 201620193325U CN 205591906 U CN205591906 U CN 205591906U
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- pipeline
- frictional resistance
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Abstract
The utility model relates to an oil water separator in the pit, include separator inlet, current -limiting pipeline and rub and hinder the pipeline, the lower extreme and the separator inlet intercommunication of current -limiting pipeline, the upper end of current -limiting pipeline forms the export of current -limiting pipeline, the inside passageway that overflows that forms the confession liquid flow of current -limiting pipeline overflows the passageway and includes a plurality of big cross -section section and small bore sections that set up in turn, and the long -pending flow surface who is greater than the small bore section of flow surface of big cross -section section amasss, the rub lower extreme that hinders the pipeline and separator inlet intercommunication, the upper end that hinders the pipeline of rubbing forms to rub and hinders the pipeline export, rub and hinder the long -pending homogeneous phase of the inside flow surface of pipeline together, rubbing and hindering pipeline and current -limiting pipeline and set up side by side, the length that hinders the pipeline of rubbing is greater than the length of current -limiting pipeline. The utility model also provides a piece -rate system, including top packer, screen pipe, isolation packer and water oil separating tubular column. The utility model discloses the fluid that enables the different grade type flows along different pipelines, the flow and the moisture content of extraction liquid under the adjusting well, and separation efficiency is high, and the handling capacity is big.
Description
Technical field
This utility model is to separate the device of institute's product matter in well in well about a kind of, particularly relates to a kind of down-hole
Oil water separator and piece-rate system.
Background technology
Along with the growth of oilfield exploitation time, in production fluid, moisture content increases year by year, needs for this to expend a large amount of people
Power material resources carry out separating treatment to production fluid, and the water after processing is recycled into water filling layer, and this makes oil well economy
Remarkable benefit reduces.Downhole oil-water separation system refers to be directly installed on oil water separator shaft bottom, and separation is produced
Most water in liquid are also directly recycled into water filling layer, and rich oil liquid only gives rise to earth's surface, significantly reduce
Ground production fluid treating capacity, reduces crude oil production expense, and reduces ground sewage discharge capacity.
At present, two kinds of downhole oil-water separation technology are had extensively to be utilized, respectively gravity separator and waterpower rotation
Stream device.The gravity difference that gravity separator utilizes profit density difference to cause separates, sinking under water of heavy phase,
And the oil float of lightweight phase is on water layer, thus realize the separation of profit；Hydrocyclone then utilizes profit at height
The centrifugal force difference of speed rotational flow field realizes separating, and the water of heavy phase is thrown toward limit wall, downward spiral motion and from
Underflow opening flows out, and the oil of lightweight phase is then formed about oil core at cyclone central shaft, from the overfall stream on top
Go out, thus reach the purpose of oil-water separation.
But, in limited wellbore space, all there is bigger limitation in both downhole separation systems, main
Gravity separator volume to be shown as is big, inferior separating effect, separation efficiency are low, hydrocyclone parasitic pressure drop mistake
Greatly, treating capacity low, which has limited downhole oil-water separation technology in heavy crude reservoir, deepwater development and High Temperature High Pressure
The using and promoting of environment.
Thus, the present inventor relies on experience and the practice being engaged in relevant industries for many years, proposes a kind of downhole oil moisture
From device and piece-rate system, to overcome the defect of prior art.
Utility model content
The purpose of this utility model is to provide a kind of downhole separation system and piece-rate system, can automatically identify stream
Body type, makes different types of fluid along different tube runs, thus adjusts the flow of down-hole Produced Liquid and contain
Water rate；Oil-water separation efficiency is high, and treating capacity is big.
The purpose of this utility model is achieved in that a kind of downhole separation system, described downhole oil-water separation
Device includes:
Separator inlet, down-hole Produced Liquid enters in this downhole separation system from described separator inlet
Portion；
Current limliting pipeline, the lower end of described current limliting pipeline connects with described separator inlet, described current limliting pipeline
Upper end upwardly extends and is formed current limiting tube way outlet；The mistake flowed for liquid that is internally formed of described current limliting pipeline flows
Passage, described flow channels includes multiple heavy in section section being arranged alternately and small bore section, described heavy in section section
Area of passage is more than the area of passage of described small bore section；
Frictional resistance pipeline, the lower end of described frictional resistance pipeline connects with described separator inlet, described frictional resistance pipeline
Upper end upwardly extends and is formed frictional resistance tube outlet；The area of passage of described frictional resistance channel interior is the most identical；Described
Frictional resistance pipeline is set up in parallel with described current limliting pipeline, and the length of described frictional resistance pipeline is more than the length of described current limliting pipeline
Degree.
In a better embodiment of the present utility model, described current limiting tube curb straight line upwardly extends；Described rub
Resistance pipeline bending coiling upwardly extends；Described current limiting tube way outlet and described frictional resistance tube outlet are positioned at same height
Degree.
In a better embodiment of the present utility model, described current limiting tube route multistage large diameter steel pipe and multistage
Minor-diameter steel-tube alternately connects and composes；The internal diameter of described large diameter steel pipe is more than the internal diameter of described minor-diameter steel-tube；
Described frictional resistance pipeline is made up of bended pipe.
In a better embodiment of the present utility model, the bottom of described downhole separation system is additionally provided with one and delays
Rushing chamber, described separator inlet is positioned at the lower end of described cushion chamber, the lower end of described current limliting pipeline and described rub
The lower end of resistance pipeline all connects with described cushion chamber.
The purpose of this utility model can also be achieved in that, a kind of segregative line using described downhole separation system
System, described piece-rate system includes top packer, screen casing, isolation packer and oil-water separation tubing string；Described top
Portion's packer is arranged on the upper end of described screen casing, and described isolation packer is arranged on the middle part of described screen casing；Described
For water filling layer between top packer and described isolation packer, the lower section of described isolation packer is fluid producing layer；
Described oil-water separation tubing string includes described downhole separation system, inserts sealing device and oil pipe, described slotting
Enter sealing device and be connected to the lower section of described downhole separation system, described insertion sealing device by described oil pipe
Seal grafting with described isolation packer to coordinate；Described frictional resistance tube outlet connects with described water filling layer；Described limit
Flow tube way outlet is communicated to earth's surface.
In a better embodiment of the present utility model, described downhole separation system seals dress with described insertion
Bottom filling pump it is provided with between putting.
In a better embodiment of the present utility model, the top that is arranged over of described downhole separation system fills
Armored pump.
In a better embodiment of the present utility model, described top filling pump and described downhole separation system
Between be provided with packer.
In a better embodiment of the present utility model, the lower end of described insertion sealing device connects pipe with holes.
In a better embodiment of the present utility model, it is formed with production fluid in described piece-rate system and flows into logical
Road, rich oil liquid lifting passage and low oily liq re-injection passage；
Described separator inlet is connected by described production fluid flow channel with described fluid producing layer；Described rich oil liquid
The lower end of described current limliting pipeline is connected by lifting passage with earth's surface；Described low oily liq re-injection passage rubs described
The lower end of resistance pipeline connects with described water filling layer.
From the above mentioned, in the current limliting pipeline of this downhole separation system, there is the area of passage that size is arranged alternately,
Based on local resistance loss；The inside of frictional resistance pipeline has uniform area of passage, and length is more than current limiting tube
The length on road, based on friction loss.After water-oil phase fluid-mixing enters this downhole separation system,
Profit will be automatically separated and enter different pipelines, and the oil phase that viscosity is higher mainly flows into and with local resistance loss is
Main current limliting pipeline, and give rise to earth's surface along oil pipe；The relatively low aqueous phase of viscosity mainly flows into friction loss
It is main frictional resistance pipeline, and is recycled into water filling layer, thus realize the separation to water-oil phase fluid-mixing, profit
Separation efficiency is high, and treating capacity is big.
Accompanying drawing explanation
The following drawings is only intended to, in schematically illustrating this utility model and explaining, not limit this utility model
Scope.Wherein:
Fig. 1: for the structural representation of this utility model downhole separation system.
Fig. 2: for the structural representation of this utility model downhole oil-water separation system.
1. upper can armored pump,
2. packer,
3. downhole separation system, 31. separator inlets,
4. the canned pump in bottom,
5. oil pipe,
6. top packer,
7. screen casing,
8. isolation packer,
9. insert sealing device,
Pipe the most with holes,
11. current limliting pipelines, 111. current limliting line entry, 112. current limiting tube way outlets,
12. frictional resistance pipelines, 121. frictional resistance line entry, 122. frictional resistance tube outlet,
131. large diameter steel pipes, 132. minor-diameter steel-tubes, 133. straight lengths,
14. bending tube sections,
A. production fluid flow channel,
B. rich oil liquid lifting passage,
The lowest oily liq re-injection passage,
W. water filling layer,
P. fluid producing layer.
Detailed description of the invention
In order to technical characteristic of the present utility model, purpose and effect are more clearly understood from, now compare accompanying drawing
Detailed description of the invention of the present utility model is described.
Embodiment one
As it is shown in figure 1, this utility model provides a kind of downhole separation system 3, including separator inlet
31, current limliting pipeline 11 and frictional resistance pipeline 12.Separator inlet 31 is located at the lower end of downhole separation system 3,
It is internal that down-hole Produced Liquid enters this downhole separation system 3 from described separator inlet 31.Current limliting pipeline
The lower end (frictional resistance line entry 121) of lower end (current limliting line entry 111) and frictional resistance pipeline all with described point
Connecting from device inlet 31, described frictional resistance pipeline 12 is set up in parallel with described current limliting pipeline 11.Described current limliting
The upper end of pipeline upwardly extends and is formed current limiting tube way outlet 112, and rich oil liquid flows from current limiting tube way outlet 112
Go out and pass through lifting and arrive earth's surface.Described current limliting pipeline 11 be internally formed the flow channels flowed for liquid,
Described flow channels includes multiple heavy in section section being arranged alternately and small bore section, the flow-passing surface of described heavy in section section
The long-pending area of passage more than described small bore section.Therefore, (office is lost with local friction drag in current limliting pipeline 11
Portion's drag losses) it is main, local friction drag refers to when the border of fluid occurs in some areas drastically to change,
Force main flow to depart from limit wall and form whirlpool, between fluid particle, produce the resistance that violent collision is formed.Current limliting
Area of passage change in pipeline 11 is many, therefore local friction drag loss is big.The upper end of described frictional resistance pipeline to
Upper extension also forms frictional resistance tube outlet 122, and low oily liq flows out from frictional resistance tube outlet 122, flows to well
The outside of lower oil water separator 3.Area of passage within described frictional resistance pipeline 12 is the most identical；Described frictional resistance pipe
The length on road 12 is more than the length of described current limliting pipeline 11.Therefore, damage with on-way resistance in frictional resistance pipeline 12
Mistake is main, when on-way resistance is the pipeline that fluid flows through a fixed-caliber, and the resistance produced due to fluid internal friction
Power, the size of resistance is directly proportional to flow path length.Owing to the path length of frictional resistance pipeline 12 is long, therefore edge
Journey drag losses is big.
Before the fluid (oil mixing with water phase) of fluid producing layer P output flows through downhole separation system 3, profit two
Not yet separate mutually, there is uniform pressure, pressure phase at current limiting tube way outlet 112 with frictional resistance tube outlet 122
Deng time, that is drive two-phase fluid motion pressure reduction equal time, water-oil phase fluid can will reduce from trend
The flow passage of pressure loss, according to hydrodynamics formula, owing to oil phase fluid viscosity is relatively big, density is less,
The loss of its flowing pressure is essentially from along journey frictional resistance, again because frictional resistance pipeline 12 runner is long, convection cell
Friction loss is big, i.e. current limliting pipeline 11 is less than frictional resistance pipeline 12 to this fluid to the resistance of oil phase fluid
Resistance, therefore oil phase liquid is more likely to flow to current limliting pipeline 11；And aqueous viscosity is low, density is big, its pressure that flows
Power loss is lost essentially from local resistance, and current limliting pipeline 11 is more due to area of passage change, convection cell
Local resistance loss is big, i.e. frictional resistance pipeline 12 is less than current limliting pipeline 11 to this fluid to the resistance of aqueous phase fluid
Resistance, therefore aqueous phase liquid is more likely to flow to frictional resistance pipeline 12.
In the present embodiment, current limliting pipeline 11 linearly upwardly extends, can be by multistage large diameter steel pipe 131
Alternately connect and compose with multistage minor-diameter steel-tube 132；The internal diameter of described large diameter steel pipe 131 more than described little directly
The internal diameter of footpath steel pipe 132；A straight steel pipe can also be used, and there is in straight steel pipe size and be arranged alternately not
With internal diameter section.Its resistance is mainly local head loss, and drag size and the segments of pipeline, caliber are relevant.
Described frictional resistance pipeline 12 employing bending coiled fashion upwardly extends and extends length of pipe, uses this set-up mode
Reason and purpose be: owing to the air line distance between 2 o'clock is the shortest, current limliting pipeline 11 is the most upwards to prolong
Stretch, therefore to make the length length more than described current limliting pipeline 11 of described frictional resistance pipeline 12, used
Bending coiled fashion refer to the upwardly extending path any alternate manner in addition to straight line, can be bent
Line, it is also possible to be the curve form combined with straight line, it is also possible to be that broken line form upwardly extends.When using song
Upwards can coil with spiral during line, it is also possible to be that S-shaped is upwards coiled.Can be by bended pipe structure when being embodied as
Become；Multiple straight length 133 can also be used with multiple bending tube sections 14 to be connected composition, described frictional resistance pipeline 12
The several times of a length of current limliting pipeline 11 length.Its resistance is mainly frictional head loss, drag size and pipe
The length on road is relevant.Described current limiting tube way outlet 112 is positioned at sustained height with described frictional resistance tube outlet 122,
Current limiting tube way outlet 112 is easy to concatenate with oil pipe 5 or other part upward, and frictional resistance tube outlet 122 is towards well
The side of lower oil water separator 3, it is simple to low oily liq flows out downhole separation system 3 and enters water filling layer W,
Current limliting pipeline 11 and frictional resistance pipeline 12 can the most only arrange one or be respectively provided with multiple.It addition, downhole oil
The bottom of water separator 3 can also arrange a cushion chamber, and described separator inlet 31 is positioned at described cushion chamber
Lower end, the lower end of described current limliting pipeline all connects with described cushion chamber with the lower end of described frictional resistance pipeline.Down-hole
Produced Liquid enters in cushion chamber from described separator inlet 31, and low oily liq enters frictional resistance from cushion chamber
Pipeline 12, rich oil liquid enters current limliting pipeline 11 from cushion chamber, thus is separated with water by the oil of down-hole Produced Liquid.
It can thus be seen that there is the flow-passing surface that size is arranged alternately in the current limliting pipeline of this downhole separation system
Long-pending, based on local resistance loss；The inside of frictional resistance pipeline has uniform area of passage, and length is more than limit
The length on flow tube road, based on friction loss.When water-oil phase fluid-mixing enters this downhole oil-water separation
After device, profit will be automatically separated and enter different pipelines, and the oil phase that viscosity is higher mainly flows into local resistance
Loss is main current limliting pipeline, and gives rise to earth's surface along oil pipe；The relatively low aqueous phase of viscosity mainly flows into hinder along journey
Power loss is main frictional resistance pipeline, and is recycled into water filling layer, thus realizes the separation to water-oil phase fluid-mixing,
Oil-water separation efficiency is high, and treating capacity is big.
Embodiment two
As in figure 2 it is shown, this utility model additionally provides a kind of downhole oil-water separation system, this piece-rate system is arranged
In the sleeve pipe of oil well, including top packer 6, screen casing 7, isolation packer 8 and oil-water separation tubing string.
Described top packer 6 is threaded in the upper end of described screen casing 7, and described isolation packer 8 is threaded in
The middle part of described screen casing 7.Annular space, top packer 6 and described isolation envelope is had between screen casing 7 and sleeve pipe
Annular space between device 8 is corresponding with water filling layer W, the annular space below described isolation packer 8 and product
Liquid layer P is corresponding, and water filling layer W and fluid producing layer P is kept apart by isolation packer 8.
Oil-water separation tubing string is lowered in sleeve pipe, and through top packer 6, screen casing 7 and isolation packer 8.
Described oil-water separation tubing string at least includes described downhole separation system 3, inserts sealing device 9 and oil pipe 5,
Downhole separation system 3 can use one or more being serially connected on tubing string, described insertion sealing device 9 to pass through
Described oil pipe 5 is connected to the lower section of described downhole separation system 3, described insertion sealing device 9 with described every
Seal grafting from packer 8 to coordinate, insert sealing device 9 and be inserted in isolation packer 8, isolation is insulated
The top of device 8 isolates with lower section.The threaded oil pipe in downhole separation system 3 lower end 5, separator inlet
31 are connected with oil pipe 5, and described frictional resistance tube outlet 122 connects with described water filling layer W；Described current limliting pipeline goes out
Mouth 112 is communicated to earth's surface by oil pipe 5.By the pressure on stratum, the production fluid of fluid producing layer P enters oil pipe 5
In, and flow to downhole separation system 3, through downhole separation system 3 by the rich oil liquid in oil-water mixture
Body and low oily liq separate, and the rich oil liquid after separation gives rise to earth's surface by oil pipe 5；After separation
Low oily liq is recycled into water filling layer W.
In an embodiment of the present embodiment, oil-water separation tubing string includes passing sequentially through oil pipe 5 from top to down
The upper can armored pump 1 of concatenation, downhole separation system 3, the canned pump in bottom 4, insert sealing device 9 and with holes
Pipe 10.Packer 2 it is also provided with between top filling pump and described downhole separation system 3.Its middle and upper part
Canned pump 1 concatenates with the current limliting pipeline 11 of oil water separator, i.e. current limiting tube way outlet 112 and upper can armored pump 1
Connection.The lower end of downhole separation system 3 pump canned with bottom 4 is connected, and upper can armored pump 1 and bottom are canned
The effect of pump 4 be produce lifting driving force, only arrange the canned pump of upper can armored pump 1 or bottom 4 one of them
Can also；Pipe 10 with holes is used for being flowed in oil pipe 5 for production fluid.Oil-water separation tubing string and sleeve pipe and screen casing 7
Between be respectively provided with annular space.Thus, in piece-rate system, it is formed with production fluid flow channel A, rich oil liquid
Lifting passage B and low oily liq re-injection channel C.
Described production fluid flow channel A refers to this section of passage from fluid producing layer P to separator inlet 31, will
Described separator inlet 31 connects with described fluid producing layer P, and production fluid flows to through production fluid flow channel A
Separator inlet 31.Described rich oil liquid lifting passage B refers to that current limliting pipeline 11 and top thereof are with earth's surface even
This section of logical passage, rich oil liquid gives rise to earth's surface by rich oil liquid lifting passage B.Described low oily liq
Re-injection channel C refers to frictional resistance pipeline 12 and the annular space connected with water filling layer W, and low oily liq is by low oil-containing
Liquid re-injection channel C is recycled into water filling layer W.
The work process of this downhole oil-water separation system is, fluid, after fluid producing layer P is by screen casing 7, first enters
Enter to be arranged on the pipe with holes 10 in screen casing 7, under bottom canned pump 4 lifts, enter downhole separation system 3,
I.e. production fluid flow channel A；After fluid enters oil water separator, different according to its character, respectively along rich oil liquid
Body lifting passage B and low oily liq re-injection channel C flow out, and oil phase fluid viscosity is relatively big, will mainly flow into limit
Flow tube road 11, and after current limiting tube way outlet 112 is discharged, under upper can armored pump 1 acts on, give rise to earth's surface.
And aqueous phase fluid viscosity is less, frictional resistance pipeline 12 will be mainly flowed into, and after frictional resistance tube outlet 122 is discharged,
It is recycled into water filling layer W by low oily liq re-injection channel C.
From the above mentioned, in the current limliting pipeline of this downhole separation system, there is the area of passage that size is arranged alternately,
Based on local resistance loss；The inside of frictional resistance pipeline has uniform area of passage, and length is more than current limiting tube
The length on road, based on friction loss.After water-oil phase fluid-mixing enters this downhole separation system,
Profit will be automatically separated and enter different pipelines, and the oil phase that viscosity is higher mainly flows into and with local resistance loss is
Main current limliting pipeline, and give rise to earth's surface along oil pipe；The relatively low aqueous phase of viscosity mainly flows into friction loss
It is main frictional resistance pipeline, and is recycled into water filling layer, thus realize the separation to water-oil phase fluid-mixing, profit
Separation efficiency is high, and treating capacity is big.
The foregoing is only the schematic detailed description of the invention of this utility model, be not limited to this utility model
Scope.Any those skilled in the art, institute on the premise of without departing from design of the present utility model and principle
The equivalent variations made and amendment, all should belong to the scope of this utility model protection.
Claims (10)
1. a downhole separation system, it is characterised in that described downhole separation system includes:
Separator inlet, down-hole Produced Liquid enters in this downhole separation system from described separator inlet
Portion；
Current limliting pipeline, the lower end of described current limliting pipeline connects with described separator inlet, described current limliting pipeline
Upper end upwardly extends and is formed current limiting tube way outlet；The mistake flowed for liquid that is internally formed of described current limliting pipeline flows
Passage, described flow channels includes multiple heavy in section section being arranged alternately and small bore section, described heavy in section section
Area of passage is more than the area of passage of described small bore section；
Frictional resistance pipeline, the lower end of described frictional resistance pipeline connects with described separator inlet, described frictional resistance pipeline
Upper end upwardly extends and is formed frictional resistance tube outlet；The area of passage of described frictional resistance channel interior is the most identical；Described
Frictional resistance pipeline is set up in parallel with described current limliting pipeline, and the length of described frictional resistance pipeline is more than the length of described current limliting pipeline
Degree.
2. downhole separation system as claimed in claim 1, it is characterised in that described current limiting tube curb is straight
Line upwardly extends；The bending coiling of described frictional resistance pipeline upwardly extends；Described current limiting tube way outlet and described frictional resistance pipe
Way outlet is positioned at sustained height.
3. downhole separation system as claimed in claim 2, it is characterised in that described current limiting tube route is many
Section large diameter steel pipe and multistage minor-diameter steel-tube alternately connect and compose；The internal diameter of described large diameter steel pipe is more than described
The internal diameter of minor-diameter steel-tube；Described frictional resistance pipeline is made up of bended pipe.
4. the downhole separation system as described in claim 1 or 2 or 3, it is characterised in that described down-hole
The bottom of oil water separator is additionally provided with a cushion chamber, and described separator inlet is positioned at the lower end of described cushion chamber,
The lower end of described current limliting pipeline all connects with described cushion chamber with the lower end of described frictional resistance pipeline.
5. use the piece-rate system of downhole separation system, its feature according to any one of Claims 1-4
Being, described piece-rate system includes top packer, screen casing, isolation packer and oil-water separation tubing string；Described
Top packer is arranged on the upper end of described screen casing, and described isolation packer is arranged on the middle part of described screen casing；Institute
Stating between top packer and described isolation packer is water filling layer, and the lower section of described isolation packer is production fluid
Layer；
Described oil-water separation tubing string includes described downhole separation system, inserts sealing device and oil pipe, described slotting
Enter sealing device and be connected to the lower section of described downhole separation system, described insertion sealing device by described oil pipe
Seal grafting with described isolation packer to coordinate；Described frictional resistance tube outlet connects with described water filling layer；Described limit
Flow tube way outlet is communicated to earth's surface.
6. piece-rate system as claimed in claim 5, it is characterised in that described downhole separation system and institute
State and be provided with bottom filling pump between insertion sealing device.
7. the piece-rate system as described in claim 5 or 6, it is characterised in that described downhole separation system
Be arranged over top filling pump.
8. piece-rate system as claimed in claim 7, it is characterised in that described top filling pump and described well
It is provided with packer between lower oil water separator.
9. piece-rate system as claimed in claim 5, it is characterised in that the lower end of described insertion sealing device
Connect pipe with holes.
10. piece-rate system as claimed in claim 5, it is characterised in that be formed with product in described piece-rate system
Go out liquid flow channel, rich oil liquid lifting passage and low oily liq re-injection passage；
Described separator inlet is connected by described production fluid flow channel with described fluid producing layer；Described rich oil liquid
The lower end of described current limliting pipeline is connected by lifting passage with earth's surface；Described low oily liq re-injection passage rubs described
The lower end of resistance pipeline connects with described water filling layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620193325.0U CN205591906U (en) | 2016-03-14 | 2016-03-14 | Oil water separator and piece -rate system in pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620193325.0U CN205591906U (en) | 2016-03-14 | 2016-03-14 | Oil water separator and piece -rate system in pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205591906U true CN205591906U (en) | 2016-09-21 |
Family
ID=56929510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620193325.0U Expired - Fee Related CN205591906U (en) | 2016-03-14 | 2016-03-14 | Oil water separator and piece -rate system in pit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205591906U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604536A (en) * | 2016-03-14 | 2016-05-25 | 中国石油大学(北京) | Underground oil-water separator and separation system |
-
2016
- 2016-03-14 CN CN201620193325.0U patent/CN205591906U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604536A (en) * | 2016-03-14 | 2016-05-25 | 中国石油大学(北京) | Underground oil-water separator and separation system |
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