CN106733243A - Down-hole oil production multi-chamber spiral-flow type crude separation device - Google Patents
Down-hole oil production multi-chamber spiral-flow type crude separation device Download PDFInfo
- Publication number
- CN106733243A CN106733243A CN201710049547.4A CN201710049547A CN106733243A CN 106733243 A CN106733243 A CN 106733243A CN 201710049547 A CN201710049547 A CN 201710049547A CN 106733243 A CN106733243 A CN 106733243A
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- Prior art keywords
- tangential
- exocoel
- chamber
- inner cavity
- separation unit
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- 238000000926 separation method Methods 0.000 title claims abstract description 75
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 50
- 238000002347 injection Methods 0.000 claims abstract description 20
- 239000007924 injection Substances 0.000 claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 239000003129 oil well Substances 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 15
- 238000005086 pumping Methods 0.000 abstract description 10
- 239000000243 solution Substances 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 47
- 235000019198 oils Nutrition 0.000 description 47
- 239000010779 crude oil Substances 0.000 description 8
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000000605 extraction Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 230000003340 mental effect Effects 0.000 description 1
- 235000019476 oil-water mixture Nutrition 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/02—Construction of inlets by which the vortex flow is generated, e.g. tangential admission, the fluid flow being forced to follow a downward path by spirally wound bulkheads, or with slightly downwardly-directed tangential admission
- B04C5/04—Tangential inlets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/08—Vortex chamber constructions
- B04C5/081—Shapes or dimensions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/08—Vortex chamber constructions
- B04C5/103—Bodies or members, e.g. bulkheads, guides, in the vortex chamber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/12—Construction of the overflow ducting, e.g. diffusing or spiral exits
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/34—Arrangements for separating materials produced by the well
- E21B43/38—Arrangements for separating materials produced by the well in the well
- E21B43/385—Arrangements for separating materials produced by the well in the well by reinjecting the separated materials into an earth formation in the same well
Landscapes
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geometry (AREA)
- Cyclones (AREA)
Abstract
The invention discloses a kind of down-hole oil production multi-chamber spiral-flow type crude separation device, it can be as a part for electric submersible pumping device Set under a well, and the existing separator separating effect of solution is not good enough, the problem that the energy, fund are wasted.The device can effectively strengthen separating effect, reduce moisture content, improve lifting liquid Central Plains oil volume accounting.Including housing, the housing has inner cavity chamber, exocoel, inner cavity chamber has upper separation unit, lower separation unit, lower separation unit, the exocoel of inner cavity chamber are presented tapered under justifying, the round section of exocoel sets tangential direction pipe, tangential outlet pipe is set between the round section of separation unit under the cone section of exocoel and inner cavity chamber, next door inner side in exocoel, inner cavity chamber between separation unit sets tangential flowline, the bottom of the inner cavity chamber is provided for the water injection pipe on the water injection stratum that will be isolated, and check valve is respectively equipped with the tangential outlet pipe, tangential flowline, water injection pipe.
Description
Technical field
The present invention relates to a kind of oil exploration equipment, more particularly to a kind of down-hole oil production multi-chamber spiral-flow type crude separation dress
Put.
Background technology
During oil exploitation, when stratum energy is sufficient, can be by natural energy blowing.With stratum energy
Consumption, strata pressure declines, and flush stage terminates, it is necessary to development technique personnel selection others driving energy.Artificial lift skill
Art is essential in modern petroleum exploitation, and with also relatively broad.The country, the mode of displacement formation crude oil is mainly
Water drive, most of oil fields are also the crude oil extraction by the way of water filling.Water flooding recovery low cost, oil displacement efficiency is preferably, comprehensive to pass through
Better results for Ji.But, with the continuous exploitation of in-place oil, the driving energy that the crude oil in stratum in macrovoid needs compared with
It is few.For micro-pore, duct is smaller, and capillary pressure is bigger, and displacement of reservoir oil resistance is also bigger, and this necessarily causes there is substantial amounts of in stratum
Remaining oil is difficult to exploit.
Domestic many oil fields, injection water will be recovered the oil after mother oil displacement to well using artificial lift, be contained in lifting liquid
Substantial amounts of water, causes moisture content very high, and the situation that moisture content is up to 90% is also very common.In lifting out the liquid of well head,
What is required is simply that the crude oil of the low accounting of part.Substantial amounts of water is extracted, and this causes to consume substantial amounts of electric energy and fund
Input.The cost of water treatment in later stage is also a larger spending for oil exploitation.The extraction of water and re-injection process,
Substantial amounts of energy waste is caused, cost rises.Therefore, underground carries out crude separation to profit, is just particularly important.It is existing
Oil water separator, such as number of patent application are the utility model patent of 00213389.X, and its separator partial function is more simple
Single, the crude oil water content isolated is higher, low separation efficiency.
The content of the invention
It is an object of the invention to overcome the deficiencies in the prior art, there is provided a kind of down-hole oil production multi-chamber spiral-flow type crude separation
Device, it can be as a part for electric submersible pumping device Set under a well, and the existing separator separating effect of solution is not good enough, energy
The problem that source, fund are wasted.The device can effectively strengthen separating effect, reduce moisture content, improve lifting liquid Central Plains oil volume
Accounting.
The object of the present invention is achieved like this：
A kind of down-hole oil production multi-chamber spiral-flow type crude separation device, the housing has inner cavity chamber and is looped around inner cavity chamber
Outer exocoel annular in shape, the inner cavity chamber has upper separation unit, lower separation unit, and the exocoel is located at the upper separation of inner cavity chamber
Portion, lower separation unit, the exocoel of the inner cavity chamber present tapered under circle, the top of the inner cavity chamber set oil pick-up tube be used for
Oil well pump is connected, and the round section of the exocoel sets tangential direction pipe to be used to be connected with the inner chamber of booster pump, the exocoel
Tangential outlet pipe is set between the round section of separation unit under cone section and inner cavity chamber, in the exocoel, inner cavity chamber between separation unit
Next door inner side sets tangential flowline, and the tangential flowline is located at the top of tangential outlet pipe, and the bottom of the inner cavity chamber sets
The water injection pipe that the water for that will isolate injects stratum is put, is respectively equipped with the tangential outlet pipe, tangential flowline, water injection pipe
Check valve.
In order to form eddy flow, it is preferable that the upper end of the tangential direction pipe is tangent with the outer surface of booster pump, tangential direction
The lower end of pipe is tangent with exocoel outdoor face, and the upper end of the tangential outlet pipe is tangent with exocoel outdoor face, described tangentially to go out
The lower end of water pipe is tangent with inner chamber outdoor face.
In order to improve separating effect, it is preferable that the quantity of the tangential direction pipe is two, and two tangential direction pipes are along water
Square to the outside for being symmetricly set on exocoel, the rotation direction of two tangential direction pipes is identical；The quantity of the tangential outlet pipe is two
Root, two tangential outlet pipes are symmetricly set on the outside of inner cavity chamber in the horizontal direction, and the rotation direction of two tangential outlet pipes is identical；It is described
The quantity of tangential flowline is two, and two tangential flowlines are symmetrical arranged the inner side of next door in the horizontal direction, and two tangentially go out
The rotation direction of oil pipe is identical.
In order to ensure that oil-water mixture tangentially makees downwards spiralling through both sides tangential direction pipe into exocoel, prevent
Only the fluid molecule of two inlet entrance collides, and influences separating effect, it is preferable that two tangential direction pipes are along side vertically
To shifting to install；Two tangential outlet pipes are vertically shifted to install；Two tangential flowlines are vertically shifted to install.
Preferably, the lower separation unit of the inner cavity chamber is with diameter greater than upper separation unit diameter, separation unit, lower separation unit in formation
Between form step.
Preferably, the exocoel, the next door inner side in inner cavity chamber between separation unit set ring baffle, the annular gear
Plate is located at the top of tangential flowline.
Preferably, the tangential flowline is located at the lower section of tangential direction pipe.
Preferably, the tangential flowline is located at the top that exocoel bores section.
By adopting the above-described technical solution, the present invention has the advantages that：
1. the present apparatus is a part for electric submersible pumping device Set under a well, and underground oil-water is effectively separated, and this is right
Particularly important in oil exploitation, the present apparatus directly carries out profit crude separation in underground, prevents in the extraction and re-injection process of water, makes
Into mass energy waste, reduce the consumption of the energy and the input of fund.Cost of water treatment can also be remarkably decreased, with considerable
Economic benefit, can especially be played an important role in nonflowing well or high water-cut well Lifting Technique.
2. the top-down combining structure of multi-chamber is used, is progressively separated, significantly improve separative efficiency.
3. under the influence of centrifugal force, when crude separation device bottom, drainage speed is slower, tangential direction pipe feed speed compared with
When fast, water increases along the thickness of inner cavity chamber's wall, and the pressure of bottom water injection pipe discharge outlet rises.Water is hindered on top by two-layer
Gear, one is in inner cavity chamber between separation unit, lower separation unit step stop, next to that separation unit ring baffle in inner cavity chamber
Stop.Due to the effect for stopping, during eddy flow, the pressure of bottom water injection pipe discharge outlet, the row of accelerating are further increased
Liquid speed degree, improves separative efficiency.Also profit mixed phase can be effectively prevented, reducing will by communicating pipe of pumping on inner cavity chamber top
Water pumps out the volume of the water of separator, prevents moisture content of the effect of altering waterborne to extracting crude oil from impacting.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is the structural representation of separator；
Fig. 3 is the A-A schematic cross-sectional views of Fig. 2；
Fig. 4 is the schematic diagram that spiral-flow type is separate.
Reference
In accompanying drawing, 1. oil-submersible cable, 2. oil inlet pipe, 3. oil well pump, pump inlet of 4. pumping, 5. upper coupling, 6. pumps electric
Machine, 7. lower coupler, 8. inlet valve, 9. booster pump, 10. oil pick-up tube, 11,23. tangential direction pipes, 12,21. tangential flowlines,
13rd, 20. tangential outlet pipe, 14,15,18,19. check valves, 16. water injection pipes, 17. stratum, 22. ring baffles, 24. oil-bearing layer,
25. sleeve pipes, 26. oil pipes, 27. upper packers, 28 is inner cavity chamber, and 29 is exocoel.
Specific embodiment
It is a kind of preferred embodiment of the invention referring to Fig. 1-Fig. 4
Traditional electric submersible pumping device is made up of Set under a well part, power transmission part, ground control segment.Latent oil electricity
Ground electric energy is transferred to oil pumping motor by cable, and oil pumping motor connects oil well pump and booster pump respectively by upper and lower two shaft couplings.
A kind of down-hole oil production multi-chamber spiral-flow type crude separation device is installed in booster pump bottom, is further effectively separated profit.
Down-hole oil production multi-chamber spiral-flow type crude separation device, including housing, the housing have inner cavity chamber and are looped around
Exocoel annular in shape outside the room of inner chamber, the external diameter of exocoel is equal to the external diameter of booster pump, and inner cavity chamber space is larger, the inner cavity chamber
With upper separation unit, lower separation unit, the lower separation unit of the inner cavity chamber with diameter greater than upper separation unit diameter, separation unit in formation,
Step is formed between lower separation unit.The exocoel is located at the upper separation unit of inner cavity chamber, the lower separation unit of the inner cavity chamber, exocoel
Room presents tapered under justifying, and circle section, the height ratio of cone section are 1:3, the top of the inner cavity chamber sets oil pick-up tube to be used for and oil pumping
Pump is connected, and the round section of the exocoel sets tangential direction pipe to be used to be connected with the inner chamber of booster pump, the cone section of the exocoel
Tangential outlet pipe, the next door in the exocoel, inner cavity chamber between separation unit are set and the round section of separation unit under inner cavity chamber between
Inner side sets tangential flowline, ring baffle, and the tangential flowline is located at the top of tangential outlet pipe, in the present embodiment, institute
State the top that tangential flowline bores section positioned at the lower section of tangential direction pipe and positioned at exocoel.The ring baffle is located at tangentially to go out
The top of oil pipe, the bottom of the inner cavity chamber is provided for the water injection pipe on the water injection stratum that will be isolated, the tangential water outlet
Check valve is respectively equipped with pipe, tangential flowline, water injection pipe.
The upper end of the tangential direction pipe is tangent with the outer surface of booster pump, lower end and the exocoel appearance of tangential direction pipe
Face is tangent, and the upper end of the tangential outlet pipe is tangent with exocoel outdoor face, outside the lower end and inner chamber room of the tangential outlet pipe
Plane tangent.The quantity of the tangential direction pipe is two, and two tangential direction pipes are vertically shifted to install, and two tangential
Feed tube is symmetricly set on the outside of exocoel in the horizontal direction, and the rotation direction of two tangential direction pipes is identical；The tangential outlet pipe
Quantity be two, two tangential outlet pipes are vertically shifted to install, and two tangential outlet pipes symmetrically set in the horizontal direction
Put in the outside of inner cavity chamber, the rotation direction of two tangential outlet pipes is identical；The quantity of the tangential flowline is two, and two tangentially go out
Oil pipe is vertically shifted to install, and two tangential flowlines are symmetrical arranged the inner side of next door in the horizontal direction, and two tangentially go out
The rotation direction of oil pipe is identical.
During eddy flow, profit from top to bottom, enters in exocoel from tangential direction pipe along tangent line, increased feed liquor
The cyclonic separation time.When oil and water are by after the separation of exocoel, into inner cavity chamber, oil initially enters the upper separation of inner cavity chamber
In portion, water enter lower separation unit, due to the effect of centrifugal force, water flows downwards along inner chamber wall, oil due to gravity and from
The effect of mental and physical efforts can flow downward along central axis.Final water can be discharged by the water injection pipe with check valve, further by
Injection stratum.The oil of upper separation unit flows downward after a segment distance, the mixing of the crude oil that with inner cavity chamber from bottom to top separate, upwards after
Continue into carrying out cyclonic separation.Oil can be subject between upper separation unit, lower separation unit during eddy flow along being returned on central axis
The stop of step, being returned on next can be stopped in separation unit into inner cavity chamber by ring baffle.Can be reduced by stopping
The thickness of oil is returned upwards, can be aspirated along the preferable part oil of central axis separating effect.As crude separation device bottom row
Water speed is slower, and when tangential water inlet pipe feed speed is very fast, water increases along the thickness of inner cavity chamber's wall, bottom water injection pipe draining
The pressure of mouth rises, and speed is put on quickening central axis aggregation oil.Water is stopped on top by two-layer, one is upper separation
The stop of step between portion, lower separation unit, next to that in inner cavity chamber separation unit ring baffle stop.Due to the effect for stopping,
During eddy flow, the pressure of bottom water injection pipe discharge outlet is further increased, accelerate drainage speed, improve separation effect
Rate.Also profit mixed phase can be effectively prevented, water is pumped out the water of separator by communicating pipe of pumping on inner cavity chamber top for reduction
Volume, prevent water on alter moisture content of the effect to extracting crude oil and impact.Final oil is by main inner chamber room central upper portion
The oil pick-up tube of axis is extracted to oil well pump, eventually enters into oil pipe, and oil is then given rise to ground.
When exocoel and inner cavity chamber is designed, should as far as possible ensure that body diameter is small and tapered segment is long.The circle of minor diameter
Cylinder is conducive to increasing centrifugal force, to improve sinking speed；Meanwhile, conical section is lengthened can increase liquid prevalence journey, so as to extend mixed
Close the residence time of the disengaging time or mixed liquor of liquid in chamber.
The present invention is not limited solely to above-described embodiment, if there is enough underground spaces, can still add in inner cavity chamber bottom
One-level chamber, constitutes the top-down combining structure of multi-chamber, designs down-hole oil production multi-chamber eddy flow crude separation device, enters one
Step increases separating liquid in the residence time of cyclone internal face, strengthens separating effect.
Finally illustrate, preferred embodiment above is merely illustrative of the technical solution of the present invention and unrestricted, although logical
Cross above preferred embodiment to be described in detail the present invention, it is to be understood by those skilled in the art that can be
Various changes are made to it in form and in details, without departing from claims of the present invention limited range.
Claims (8)
1. a kind of down-hole oil production multi-chamber spiral-flow type crude separation device, including housing, it is characterised in that the housing has inner chamber
Room and exocoel annular in shape outside the room of inner chamber is looped around, the inner cavity chamber has upper separation unit, lower separation unit, the exocoel
Positioned at the upper separation unit of inner cavity chamber, lower separation unit, the exocoel of the inner cavity chamber present tapered, the top of the inner cavity chamber under circle
Portion sets oil pick-up tube to be used to be connected with oil well pump, and the round section of the exocoel sets tangential direction pipe for the inner chamber with booster pump
Connection, sets tangential outlet pipe, the exocoel, inner chamber between the round section of separation unit under the cone section of the exocoel and inner cavity chamber
Next door inner side on room between separation unit sets tangential flowline, and the tangential flowline is located at the top of tangential outlet pipe, institute
The bottom for stating inner cavity chamber is provided for the water injection pipe that the water that will isolate injects stratum, the tangential outlet pipe, tangential flowline,
Check valve is respectively equipped with water injection pipe.
2. down-hole oil production multi-chamber spiral-flow type crude separation device according to claim 1, it is characterised in that described tangentially to enter
The upper end of liquid pipe is tangent with the outer surface of booster pump, and the lower end of tangential direction pipe is tangent with exocoel outdoor face, described tangentially to go out
The upper end of water pipe is tangent with exocoel outdoor face, and the lower end of the tangential outlet pipe is tangent with inner chamber outdoor face.
3. down-hole oil production multi-chamber spiral-flow type crude separation device according to claim 1 and 2, it is characterised in that described to cut
It it is two to the quantity of feed tube, two tangential direction pipes are symmetricly set on the outside of exocoel in the horizontal direction, and two tangentially enter
The rotation direction of liquid pipe is identical；The quantity of the tangential outlet pipe is two, and two tangential outlet pipes are symmetricly set in the horizontal direction
The outside of inner cavity chamber, the rotation direction of two tangential outlet pipes is identical；The quantity of the tangential flowline is two, two tangential flowlines
The inner side of next door is symmetrical arranged in the horizontal direction, and the rotation direction of two tangential flowlines is identical.
4. down-hole oil production multi-chamber spiral-flow type crude separation device according to claim 3, it is characterised in that two are tangentially entered
Liquid pipe is vertically shifted to install；Two tangential outlet pipes are vertically shifted to install；Two tangential flowlines are along vertically
Direction shifts to install.
5. down-hole oil production multi-chamber spiral-flow type crude separation device according to claim 1, it is characterised in that the inner cavity chamber
Lower separation unit with diameter greater than upper separation unit diameter, form step between separation unit, lower separation unit in formation.
6. down-hole oil production multi-chamber spiral-flow type crude separation device according to claim 1, it is characterised in that described tangentially to go out
Oil pipe is located at the lower section of tangential direction pipe.
7. down-hole oil production multi-chamber spiral-flow type crude separation device according to claim 6, it is characterised in that described tangentially to go out
Oil pipe is located at the top that exocoel bores section.
8. down-hole oil production multi-chamber spiral-flow type crude separation device according to claim 1, it is characterised in that the exocoel
Next door inner side on room, inner cavity chamber between separation unit sets ring baffle, and the ring baffle is located at the top of tangential flowline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710049547.4A CN106733243B (en) | 2017-01-23 | 2017-01-23 | Multi-cavity cyclone type crude separation device for underground oil production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710049547.4A CN106733243B (en) | 2017-01-23 | 2017-01-23 | Multi-cavity cyclone type crude separation device for underground oil production |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106733243A true CN106733243A (en) | 2017-05-31 |
| CN106733243B CN106733243B (en) | 2023-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710049547.4A Active CN106733243B (en) | 2017-01-23 | 2017-01-23 | Multi-cavity cyclone type crude separation device for underground oil production |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108176524A (en) * | 2017-12-27 | 2018-06-19 | 重庆市桑麻环保科技有限公司 | A kind of stainless steel centrum of industrial production cyclone separator |
| CN108590622A (en) * | 2018-05-04 | 2018-09-28 | 西南石油大学 | A kind of gas hydrates underground separator with vortex generator |
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