CN108915665B - A kind of underground two-stage gas-liquid separator - Google Patents
A kind of underground two-stage gas-liquid separator Download PDFInfo
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- CN108915665B CN108915665B CN201810809698.XA CN201810809698A CN108915665B CN 108915665 B CN108915665 B CN 108915665B CN 201810809698 A CN201810809698 A CN 201810809698A CN 108915665 B CN108915665 B CN 108915665B
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- gas
- outlet tube
- feed liquor
- liquid
- pipe
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- 239000007788 liquid Substances 0.000 title claims abstract description 51
- 239000011800 void material Substances 0.000 description 10
- 239000012071 phase Substances 0.000 description 9
- 238000000926 separation method Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 238000005191 phase separation Methods 0.000 description 2
- 238000006424 Flood reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Cyclones (AREA)
Abstract
The present invention relates to a kind of underground two-stage gas-liquid separators, comprising: feed liquor casing (6), cyclone pipe (4), escape pipe (9) and outlet tube (10)；Feed liquor casing (6) is set to outside one end of cyclone pipe (4) in the form of package, and feed liquor casing (6) is connected with cyclone pipe (4) by disymmetry entrance (5), the first show-through funnel (3) is additionally provided in cyclone pipe (4) other end, escape pipe (14) is inserted into cyclone pipe (4) other end and is provided with the first floating ball (2) between escape pipe (9) one end and the first show-through funnel (3), and the first floating ball (2) is positioned by escape pipe (9) and the first show-through funnel (3)；One end of feed liquor casing (6) is connect with outlet tube (10), and the junction of outlet tube (10) and feed liquor casing (6) is provided with the first floating ball (8), the first floating ball (8) is positioned by the second show-through funnel (7) being set at outlet tube (10) port and outlet tube (10).
Description
Technical field
The present embodiments relate to oil gas field well field more particularly to a kind of underground two-stage gas-liquid separators.
Background technique
In oilfield exploitation procedure, when gas is more than 50% containing rate, because of gas-liquid two-phase speed sliding difference, gas-liquid two-phase contains
Rate can change in the wellbore.Show when the gas-liquid two-phase of this void fraction variation will cause gas lock when being pressurized by electric submersible pump
As the serious failure for even causing pump floods well to be formed.Therefore, gas-liquid point is carried out using underground gas-liquid separator in underground
From water being separated from gas to avoiding gas lock phenomenon, this is most important for exploitation.
Patent document CN2471930Y discloses a kind of Underwell oil-gas separator, the gs-oil separator using gravity principle into
Row enterprise two-phase laminated flow, in oil well big in gas liquid ratio and big yield, the volume that gas occupies is bigger, and still to will cause gas lock existing
As；Patent document CN1626770A discloses a kind of oil well gas-liquid separating method and more Settlement Cup equal flow type gas anchors, this
Gas-liquid separation is carried out using more glasss of gravitational settlings in parallel, when the higher gas separation of void fraction can even fail；Patent document
CN105536299A discloses a kind of device that eddy flow progress gas-liquid separation is generated using dynamic screw piece, and this device has dynamic
Moving component, it is not easy to repair after the damage of underground.
Summary of the invention
The embodiment of the invention provides a kind of underground two-stage gas-liquid separators, can be effectively mixed to the higher gas-liquid of void fraction
It closes liquid and carries out gas-liquid separation.
In a first aspect, the embodiment of the present invention provides a kind of underground two-stage gas-liquid separator, comprising:
Feed liquor casing 6, cyclone pipe 4, escape pipe 9 and outlet tube 10；
The feed liquor casing 6 is set to outside one end of the cyclone pipe 4 in the form of package, and the feed liquor casing 6 and institute
It states cyclone pipe 4 to be connected by disymmetry entrance 5, the first show-through funnel 3, institute is additionally provided in 4 other end of cyclone pipe
It states escape pipe 9 to be inserted into 4 other end of cyclone pipe, and between described 9 one end of escape pipe and the first show-through funnel 3
It is provided with the first floating ball 2, first floating ball 2 is positioned by the escape pipe 9 and the described first show-through funnel 3；
One end of the feed liquor casing 6 is connect with the outlet tube 10, and the outlet tube 10 and the feed liquor casing 6
Junction is provided with the second floating ball 8, and second floating ball 8 passes through the second show-through funnel for being set at 10 port of outlet tube
7 position with the outlet tube 10.
In a possible embodiment, the first valve 1 is provided at the port of the escape pipe 9.
In a possible embodiment, first valve 1, for controlling the gas gas output of escape pipe 9.
In a possible embodiment, the second valve 11 is provided at the port of the outlet tube 10.
In a possible embodiment, second valve 11, for controlling the liquid liquid outlet quantity of outlet tube 10.
In a possible embodiment, the junction of the feed liquor casing 6 and the cyclone pipe 4 is rectangle involute
Formula tangential inlet.
Two-stage gas-liquid separator in underground provided in an embodiment of the present invention can be applied and be higher than 50% in high gassiness i.e. void fraction
Oil-gas reservoir pit shaft in carry out the device of gas-liquid two-phase separation, which has that separating effect is stable, efficiently, structure is simple,
Advantage small in size, treating capacity is big.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of underground two-stage gas-liquid separator provided in an embodiment of the present invention；
Fig. 2 be the present embodiments relate to feed liquor cannula inlet port section structural schematic diagram.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In order to facilitate understanding of embodiments of the present invention, it is further explained below in conjunction with attached drawing with specific embodiment
Bright, embodiment does not constitute the restriction to the embodiment of the present invention.
Fig. 1 is a kind of structural schematic diagram of underground two-stage gas-liquid separator provided in an embodiment of the present invention, as shown in Figure 1,
The structure specifically includes:
Feed liquor casing 6, cyclone pipe 4, escape pipe 9 and outlet tube 10；
The feed liquor casing 6 is set to outside one end of the cyclone pipe 4 in the form of package, and the feed liquor casing 6 and institute
It states cyclone pipe 4 to be connected by disymmetry entrance 5, the first show-through funnel 3, institute is additionally provided in 4 other end of cyclone pipe
It states escape pipe 9 to be inserted into 4 other end of cyclone pipe, and between described 9 one end of escape pipe and the first show-through funnel 3
It is provided with the first floating ball 2, first floating ball 2 is positioned by the escape pipe 9 and the described first show-through funnel 3；
One end of the feed liquor casing 6 is connect with the outlet tube 10, and the outlet tube 10 and the feed liquor casing 6
Junction is provided with the second floating ball 8, and second floating ball 8 passes through the second show-through funnel for being set at 10 port of outlet tube
7 position with the outlet tube 10.
Optionally, the first valve 1 is provided at the port of the escape pipe 9.
Optionally, first valve 1, for controlling the gas gas output of escape pipe 9.
Optionally, the second valve 11 is provided at the port of the outlet tube 10.
Optionally, second valve 11, for controlling the liquid liquid outlet quantity of outlet tube 10.
Optionally, the junction of the feed liquor casing 6 and the cyclone pipe 4 is rectangle evolvent type tangential inlet 22.
The underground two-stage gas-liquid separator of the present embodiment can be applied to gas and liquid mixture of the void fraction 50% or more, specifically
The step of carrying out gas-liquid separation is as follows:
1, gas and liquid mixture of the void fraction 50% or more, with 50m3The fluid flow of/d or so injects feed liquor casing 6,
Enter cylinder subsequently into the tangential inlet 22 of cyclone pipe 4, forms symmetrically stable eddy flow field, gas is small into pipeline because of density
Heart regional movement, liquid phase force face nearby to move and move downward because density is big to pipeline, gas-liquid two-phase gas phase point in cyclone pipe 4
Cloth leans on upper bit at center, and liquid phase is distributed in by lower portion.
2, when entrance void fraction fluctuates, the interface of gas-liquid two-phase is fluctuated in cyclone pipe 4, due to downhole gas
Liquid two-phase start building condition can not actual test, to avoid gas-liquid separation separator from failing, two-stage gas-liquid separator is floating by second
Ball 8 and the first floating ball 2, so that it is 100% He that is, entrance, which is the gas-liquid two-phase i.e. void fraction of big slug, when extreme case occurs
When liquid holdup is 100%, automatic control is realized by drifting along automatically for floating ball when the gas-liquid interface in cyclone pipe 4 is excessively high or too low
System.
3, it when entrance void fraction is between 50% and 100%, by the first valve 1 of control and the second valve 11, adjusts
The cross-sectional sizes of liquid outlet and gas outlet, thus the flow of two mouths of control, when average flow rate and handled of liquid outlet are put down
Equal liquid measure is almost equal, and the separative efficiency of separator reaches highest.
Two-stage gas-liquid separator in underground provided in an embodiment of the present invention can be applied and be higher than 50% in high gassiness i.e. void fraction
Oil-gas reservoir pit shaft in carry out the device of gas-liquid two-phase separation, which has that separating effect is stable, efficiently, structure is simple,
Advantage small in size, treating capacity is big.
Professional should further appreciate that, described in conjunction with the examples disclosed in the embodiments of the present disclosure
Unit and algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, hard in order to clearly demonstrate
The interchangeability of part and software generally describes each exemplary composition and step according to function in the above description.
These functions are implemented in hardware or software actually, the specific application and design constraint depending on technical solution.
Professional technician can use different methods to achieve the described function each specific application, but this realization
It should not be considered as beyond the scope of the present invention.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention
Protection scope, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (6)
1. a kind of underground two-stage gas-liquid separator characterized by comprising
Feed liquor casing (6), cyclone pipe (4), escape pipe (9) and outlet tube (10)；
The feed liquor casing (6) is set to outside one end of the cyclone pipe (4) in the form of package, and the feed liquor casing (6) with
The cyclone pipe (4) is connected by disymmetry entrance (5), and it is show-through to be additionally provided with first in the cyclone pipe (4) other end
Funnel (3), the escape pipe (9) are inserted into the cyclone pipe (4) other end, and the escape pipe (9) one end with it is described
It is provided with the first floating ball (2) between first show-through funnel (3), first floating ball (2) passes through the escape pipe (9) and described the
One show-through funnel (3) positioning；
One end of the feed liquor casing (6) is connect with the outlet tube (10), and the outlet tube (10) and the feed liquor casing
(6) junction is provided with the second floating ball (8), and second floating ball (8) is by being set at the outlet tube (10) port
Second show-through funnel (7) and the outlet tube (10) position.
2. two-stage gas-liquid separator in underground according to claim 1, which is characterized in that in the port of the escape pipe (9)
Place is provided with the first valve (1).
3. two-stage gas-liquid separator in underground according to claim 2, which is characterized in that first valve (1), for controlling
Produce the gas gas output of tracheae (9).
4. two-stage gas-liquid separator in underground according to claim 1, which is characterized in that in the port of the outlet tube (10)
Place is provided with the second valve (11).
5. two-stage gas-liquid separator in underground according to claim 4, which is characterized in that second valve (11) is used for
Control the liquid liquid outlet quantity of outlet tube (10).
6. two-stage gas-liquid separator in underground according to claim 1, which is characterized in that the feed liquor casing (6) with it is described
The junction of cyclone pipe (4) is rectangle evolvent type tangential inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810809698.XA CN108915665B (en) | 2018-07-23 | 2018-07-23 | A kind of underground two-stage gas-liquid separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810809698.XA CN108915665B (en) | 2018-07-23 | 2018-07-23 | A kind of underground two-stage gas-liquid separator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108915665A CN108915665A (en) | 2018-11-30 |
| CN108915665B true CN108915665B (en) | 2019-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810809698.XA Active CN108915665B (en) | 2018-07-23 | 2018-07-23 | A kind of underground two-stage gas-liquid separator |
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Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2471930Y (en) * | 2000-12-12 | 2002-01-16 | 中国石油化工股份有限公司中原油田分公司采油三厂 | Underground oil gas separator |
| CN100532782C (en) * | 2003-12-08 | 2009-08-26 | 大庆油田有限责任公司第一采油厂 | Method for gas liquid separation under oil well and uniform flow gas anchor of multiple sedimentation cups |
| US8584744B2 (en) * | 2010-09-13 | 2013-11-19 | Baker Hughes Incorporated | Debris chamber with helical flow path for enhanced subterranean debris removal |
| US9004166B2 (en) * | 2011-08-01 | 2015-04-14 | Spirit Global Energy Solutions, Inc. | Down-hole gas separator |
| CN102743898B (en) * | 2012-06-12 | 2014-12-31 | 中海石油(中国)有限公司深圳分公司 | Ducted two-stage flow deflector type oil-water separator and its application method |
| CN105536299B (en) * | 2016-01-22 | 2018-11-30 | 杰瑞能源服务有限公司 | Underground gas-liquid separation device and its working method |
| CN107349690A (en) * | 2017-07-18 | 2017-11-17 | 中国石油化工股份有限公司 | A kind of gas-liquid separator of axial-flow type flow deflector type |
| CN107420084B (en) * | 2017-07-18 | 2019-06-18 | 中国海洋石油集团有限公司 | A kind of real-time monitoring underground gas-liquid separation combined artificial lift system of Suspensible |
| CN107894260B (en) * | 2017-10-13 | 2019-12-17 | 中石化广州工程有限公司 | Air eliminator for gas-liquid separation and gas-liquid separation method |
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2018
- 2018-07-23 CN CN201810809698.XA patent/CN108915665B/en active Active
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| Publication number | Publication date |
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| CN108915665A (en) | 2018-11-30 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20181214 Address after: 100190 No. 15, West North Fourth Ring Road, Haidian District, Beijing Applicant after: Institute of Mechanics of Chinese Academy of Sciences Applicant after: CNOOC Energy Development Co., Ltd. Address before: 100190 No. 15, West North Fourth Ring Road, Haidian District, Beijing Applicant before: Institute of Mechanics of Chinese Academy of Sciences |
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