CN107050930B - A kind of method that oil gas water consolidates the separation of four phases - Google Patents
A kind of method that oil gas water consolidates the separation of four phases Download PDFInfo
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- CN107050930B CN107050930B CN201710256639.XA CN201710256639A CN107050930B CN 107050930 B CN107050930 B CN 107050930B CN 201710256639 A CN201710256639 A CN 201710256639A CN 107050930 B CN107050930 B CN 107050930B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/0073—Degasification of liquids by a method not covered by groups B01D19/0005 - B01D19/0042
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/0205—Separation of non-miscible liquids by gas bubbles or moving solids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/26—Separation of sediment aided by centrifugal force or centripetal force
- B01D21/267—Separation of sediment aided by centrifugal force or centripetal force by using a cyclone
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Abstract
The invention belongs to the equipment technical fields such as oil and gas industry and sewage treatment industry, consolidate the method for four phases separation more particularly to a kind of oil gas water, including gas-liquid separation, solid-liquor separation and water-oil separation or including solid-liquor separation, gas-liquid separation and water-oil separation, it solves in the prior art since the theory and experience of design three phase separator are insufficient, the difference of situations such as manufacture, so that three phase separation equipment and the actual operational parameters that scene provides are incompatible, in addition carry out solid particle in liquid influences in the deposition of stable section, the problem of leading to the inferior separating effect of three phase separator, pipe characteristic is utilized, oil gas water consolidates density contrast and the Dynamic Separation principle of medium to fast implement separation, breach the way that tradition needs just to be able to achieve multi-phase separation by container, the leakage that the explosion failure mode of pressure vessel is converted into pressure pipeline is lost Effect mode, to substantially reduce equipment safety management risk.
Description
Technical field
The invention belongs to the equipment technical fields such as oil and gas industry and sewage treatment industry, and in particular to a kind of oil
The method that air water consolidates the separation of four phases.
Background technique
As China's most oilfields step into middle and later periods exploitation, crude oil water content is continuously improved.It on the one hand, is extraction
Liquid and sewage load sharply increase, and some process equipments of gathering system are not able to satisfy production requirement, during crude oil transmission
The aqueous and total liquid measure for being heated crude oil increases, and production energy consumption is caused to increase considerably；On the other hand, due to tertiary oil recovery technology
Popularization and application and high thick, highly viscous crude exploitation, oil, gas and water, solid separating difficulty increase, the especially difficulty of sewage treatment
Degree sharply increases, and more stringent requirements are proposed for the processing equipment solid to oil gas water.In addition, with the progress that oil field development is exploited,
Each original separator of yard does not adapt to actual change due to its design condition and operating parameter, it is difficult to reach oil, water separation
It is required that.From the point of view of each oil field three phase separator service condition in the current country, due to the theory of design three phase separator and through identifying
It is inadequate, the difference for situations such as national conditions and factory manufacture in addition, the practical behaviour that three phase separation equipment and scene are provided
Make that parameter is incompatible, carry out solid particle in liquid in addition influences in the deposition of stable section, leads to the separating effect of three phase separator
Difference, many three phase separators perform practically no function.In addition, three phase separator belongs to pressure vessel from the point of view of safety management, itself is deposited
In Mohaupt effect, failure mode belongs to explosion failure.In order to reduce security risk, so that it is converted into leakage from explosion failure and lose
Effect energy conservation and environmental protection and can realize the separating effect of original three phase separator, and build and operating cost is compared with original system
The research of low oil gas water solid separation method becomes the task of top priority.
Summary of the invention
The purpose of the present invention is overcome manufacture etc. in the prior art since the theory and experience of design three phase separator are insufficient
The difference of situation carrys out solid in liquid so that three phase separation equipment and the actual operational parameters that scene provides are incompatible in addition
Grain is the problem of the deposition of stable section influences, leads to the inferior separating effect of three phase separator.
For this purpose, including the following steps: 1) gas-liquid separation the present invention provides a kind of method that oil gas water consolidates the separation of four phases:
Carry out the middle part horizontal tube progress gas-liquid separation that liquid enters level-one T-type pipe through carrying out liquid main pipe line, associated gas enters level-one T-type tube top
The mist eliminator of the horizontal pipe end in portion carries out gas-liquid separation, and the gas after separation enters defeated outside gas pipeline, through first order T-type pipe and catches
The liquid that day with fog is separated enters liquid by adapter tube and consolidates cyclone progress solid-liquor separation；2) solid-liquor separation: consolidate cyclone through liquid
The solid particle separated enters sand storage tank by adapter tube, is then discharged through sand discharge pipeline, consolidates cyclone through liquid and separate
Liquid by adapter tube enter second level T-type pipe middle part horizontal tube carry out water-oil separating；3) water-oil separating: through second level T-type pipe point
It separates out the oil come to export by the oil pipeline of second level T-type tube top portion horizontal tube, the sewage separated through second level T-type pipe passes through two
The pipeline output of grade T-type bottom of the tube horizontal tube.
The sewage separated through second level T-type pipe is output to liquid by the pipeline of second level T-type bottom of the tube horizontal tube
The vertical cyclone of liquid carries out water-oil separating, and the water up to standard of the vertical cyclone separation of liquid liquid enters the output of total outlet pipe line, not up to standard
Sewage enters air buoyancy tank and carries out water-oil separating, outer defeated after the oil of air buoyancy tank separation is pooled to oil pipeline, through air buoyancy tank separation
Water up to standard is pooled to after total outlet pipe line outer defeated.
The level-one T-type pipe and second level T-type pipe is made of upper, middle and lower-ranking horizontal tube and Duo Gen standpipe.
It is taper or column type that the liquid, which consolidates hydrocyclone structure, and sand storage tank structure is container pattern or pipe type, air bearing
The shape of case is rectangular or round.
The level-one T-type pipe is equipped with gas-liquid interface instrument, temperature monitor and safety valve, and second level T-type pipe is equipped with grease circle
Face instrument, the water lines up to standard of the vertical cyclone of liquid liquid or water pipe not up to standard are equipped with flowmeter.
The method gas-liquid separation pipeline that the oil gas water consolidates the separation of four phases forms a skid body or multiple skid bodys, Huo Zhezhi
It connects and builds on the ground.
A kind of method that oil gas water consolidates the separation of four phases, includes the following steps: 1) solid-liquor separation: carrying out liquid and enter liquid to consolidate cyclone
Solid-liquor separation is carried out, consolidates the solid particle that cyclone is separated through liquid, sand storage tank is entered by adapter tube, then through sand discharge pipeline
Discharge consolidates the liquid that cyclone is separated through liquid and carries out gas-liquid separation by the middle part horizontal tube that adapter tube enters level-one T-type pipe；
2) gas-liquid separation: the mist eliminator that the gas separated through level-one T-type pipe enters the horizontal pipe end in level-one T-type tube top portion carries out gas-liquid point
From the mist eliminator that associated gas enters the horizontal pipe end in level-one T-type tube top portion carries out gas-liquid separation, and the gas after separation enters tracheae
Defeated outside line, the liquid separated through first order T-type pipe and mist eliminator is output to liquid liquid by level-one T-type bottom of the tube horizontal tube and hangs down
Straight cyclone carries out water-oil separating；3) water-oil separating: the oil separated through the vertical cyclone of liquid liquid is exported by oil pipeline, warp
The water that the vertical cyclone of liquid liquid is separated is exported by total outlet pipe line.
Beneficial effects of the present invention: this this oil gas water provided by the invention provided by the invention consolidates the side of four phases separation
Pipe characteristic is mainly utilized in method, oil gas water consolidates density contrast and the Dynamic Separation principle of medium to fast implement separation, breakthrough
Traditional way for needing just to be able to achieve multi-phase separation by container, by the explosion failure mode of pressure vessel converts pressure pipe
The leakage failure mode in road, to substantially reduce equipment safety management risk.T type pipe is by horizontal tube and standpipe group in process
At solid-liquor separation is using traditional liquid-solid separation equipment, and the vertical cyclone of liquid liquid uses Chinese Academy of Sciences's current research, and air bearing uses
Traditional air-float technology technology, be related in process everywhere in reason section can realize modularization, can substitute completely traditional
Three phase separation equipment realizes the solid separation requirement of the oil gas water of Oil and gas station, can also shorten manufacture, installation period, reduces manufacture
With management operating cost.
Detailed description of the invention
The present invention is described in further details below with reference to attached drawing.
Fig. 1 is that oil gas water consolidates four phases and separates the first structural schematic diagram；
Fig. 2 is that oil gas water consolidates four phases, second of structural schematic diagram of separation；
Fig. 3 is that oil gas water consolidates four phases and separates the third structural schematic diagram.
Description of symbols: 1. carry out liquid main pipe line；2. level-one T-type pipe；3. mist eliminator；4. gas pipeline；5. adapter tube；6. liquid
Gu cyclone；7. sand storage tank；8. sand discharge pipeline；9. second level T-type pipe；10. oil pipeline；11. the vertical cyclone of liquid liquid；12. air bearing
Case；13. total outlet pipe line；14. gas source.
Specific embodiment
Embodiment 1:
As shown in Figure 1, a kind of oil gas water consolidates the method for four phases separation, include the following steps: 1) gas-liquid separation: carrying out liquid through coming
The middle part horizontal tube that liquid main pipe line 1 enters level-one T-type pipe 2 carries out gas-liquid separation, and associated gas enters 2 top horizontal of level-one T type pipe
The mist eliminator 3 of pipe end carries out gas-liquid separation, and the gas after separation enters defeated outside gas pipeline 4, through first order T-type pipe 2 and catches mist
The liquid that device 3 is separated consolidates cyclone 6 into liquid by adapter tube 5 and carries out solid-liquor separation；2) solid-liquor separation: consolidate cyclone through liquid
6 solid particles separated enter sand storage tank 7 by adapter tube 5, are then discharged through sand discharge pipeline 8, consolidate cyclone 6 through liquid and divide
It separates out the liquid come and water-oil separating is carried out by the middle part horizontal tube that adapter tube 5 enters second level T-type pipe 9；3) water-oil separating: through two
The oil that grade T-type pipe 9 is separated is exported by the oil pipeline 10 of 9 top horizontal pipe of second level T-type pipe, is separated through second level T-type pipe 9
Sewage out is exported by the pipeline of 9 bottom level pipe of second level T-type pipe.This oil gas water provided by the invention consolidates the separation of four phases
Method, pipe characteristic is mainly utilized, oil gas water consolidate density contrast and the Dynamic Separation principle of medium fast implement separation,
The way that tradition needs just to be able to achieve multi-phase separation by container is breached, converts pressure for the explosion failure mode of pressure vessel
The leakage failure mode of hydraulic piping, to substantially reduce equipment safety management risk.
The level-one T-type pipe 2 and second level T-type pipe 9 is made of upper, middle and lower-ranking horizontal tube and Duo Gen standpipe.Level-one T
The quantity of 9 standpipe of type pipe 2 and second level T-type pipe may be 4 or more, and structure is simple, can be adjusted according to the actual situation, behaviour
Facilitate, it is at low cost.
It is taper or column type that the liquid, which consolidates 6 structure of cyclone, and 7 structure of sand storage tank is container pattern or pipe type, gas
The shape of buoyancy tank 12 is rectangular or round.The structure that liquid consolidates cyclone 6, sand storage tank 7 and air buoyancy tank 12 carries out according to actual needs
Selection, structure is simple, wide adaptation range, strong operability.
The method gas-liquid separation pipeline that the oil gas water consolidates the separation of four phases forms a skid body or multiple skid bodys, Huo Zhezhi
It connects and builds on the ground.Each separate lines can realize modularization, specialized, while Oil, Water, Gas, solid multiphase may be implemented
Separation substitutes traditional three phase separation equipment completely and realizes the solid separation requirement of the oil gas water of Oil and gas station, can also shorten system
It makes, installation period, reduces manufacture and management operating cost.
Embodiment 2:
As shown in Fig. 2, on the basis of embodiment 1, the sewage separated through second level T-type pipe 9 passes through second level T
The pipeline of 9 bottom level pipe of type pipe is output to the vertical cyclone 11 of liquid liquid and carries out water-oil separating, and the vertical cyclone 11 of liquid liquid separates
Water up to standard enter total outlet pipe line 13 output, not permitted discharge enter air buoyancy tank 12 carry out water-oil separating, divide through air buoyancy tank 12
From oil be pooled to after oil pipeline 10 outer defeated, the water up to standard separated through air buoyancy tank 12 is outer defeated after being pooled to total outlet pipe line 13.Gas
Floating to use traditional air-float technology technology, air buoyancy tank 12 is made of intake antrum, aerating system, oil pocket and water cavity；And aerating system
It is made of compressor, aerating pipelines and aeration head, all gas may be air, it is also possible to inert gas；Air buoyancy tank 12 is set
There is two position control, oil is pumped into defeated pipeline outside by oil pump, it is also possible to send to first order T-type tube inlet, it is also possible to send to the
Second level T-type tube inlet carries out circular treatment；Water is pumped into water circuit system, the vertical cyclone 11 of liquid liquid and air buoyancy tank 12 by water pump
To oily wastewater further progress depth water-oil separating, separation accuracy is improved, improves oil yield, while the water up to standard separated
It can be recycled, improve the utilization rate of resource, it is environmentally friendly.
The level-one T-type pipe 2 is equipped with gas-liquid interface instrument, temperature monitor and safety valve, and second level T-type pipe 9 is equipped with grease
Interface instrument, the water lines up to standard of the vertical cyclone 11 of liquid liquid or water pipe not up to standard are equipped with flowmeter.Gas-liquid interface instrument and grease circle
Face instrument is able to achieve oil-water interfaces or gas-liquid interface detection, is used for liquid level monitoring and gas-liquid interface analysis, and temperature monitor detects T-type
The temperature of pipe 7, safety valve ensure the safe and smooth of gas-liquid pipeline, and gas-liquid interface instrument, temperature monitor and safe valve unit monitoring simultaneously refer to
The gas-liquid separation for completing gas-liquid pipeline is led, the traffic conditions of flowmeter monitoring and statistics liquid improve accuracy, the degree of automation
Height is time saving and energy saving.
Embodiment 3:
As shown in figure 3, on the basis of embodiment 1-2, a kind of oil gas water consolidates the method for four phases separation, including walks as follows
It is rapid: 1) solid-liquor separation: come liquid enter liquid consolidate cyclone 6 carry out solid-liquor separation, consolidate the solid that cyclone 6 is separated through liquid
Grain enters sand storage tank 7 by adapter tube 5, is then discharged through sand discharge pipeline 8, consolidates the liquid that cyclone 6 is separated through liquid and pass through
The middle part horizontal tube that adapter tube 5 enters level-one T-type pipe 11 carries out gas-liquid separation；2) gas-liquid separation: through the isolated gas of level-one T-type pipe 2
The mist eliminator 3 that body enters 2 top horizontal pipe end of level-one T-type pipe carries out gas-liquid separation, and associated gas enters 2 top of level-one T-type pipe
The mist eliminator 3 of horizontal pipe end carries out gas-liquid separation, the gas after separation enter it is defeated outside gas pipeline 4, through 2 He of first order T-type pipe
The liquid that mist eliminator 3 is separated is output to the vertical cyclone 11 of liquid liquid by 2 bottom level pipe of level-one T-type pipe and carries out grease point
From；3) water-oil separating: the oil separated through the vertical cyclone 11 of liquid liquid is exported by oil pipeline 10, through the vertical eddy flow of liquid liquid
The water that device 11 is separated is exported by total outlet pipe line 13.Pipe characteristic is mainly utilized, oil gas water consolidates the density of medium
Difference and Dynamic Separation principle separate to fast implement, and breach the way that tradition needs just to be able to achieve multi-phase separation by container,
The explosion failure mode of pressure vessel is converted to the leakage failure mode of pressure pipeline, to substantially reduce equipment safety management
Risk.T-type pipe is made of horizontal tube and standpipe in process, and solid-liquor separation is using traditional liquid-solid separation equipment, and liquid liquid hangs down
Straight cyclone 11 uses Chinese Academy of Sciences's current research, be related in process everywhere in reason section can realize modularization, completely can be with
It substitutes traditional three phase separation equipment and realizes the solid separation requirement of the oil gas water of Oil and gas station, manufacture, installation week can also be shortened
Phase reduces manufacture and management operating cost.
The foregoing examples are only illustrative of the present invention, does not constitute the limitation to protection scope of the present invention, all
It is within being all belonged to the scope of protection of the present invention with the same or similar design of the present invention.
Claims (5)
1. a kind of method that oil gas water consolidates the separation of four phases, which comprises the steps of:
1) gas-liquid separation: carry out liquid and come the middle part horizontal tube progress gas-liquid separation of liquid main pipe line (1) into level-one T-type pipe (2), companion
The mist eliminator (3) that anger enters level-one T-type pipe (2) top horizontal pipe end carries out gas-liquid separation, and the gas after separation enters gas
Defeated outside pipeline (4), the liquid separated through first order T-type pipe (2) and mist eliminator (3) enters liquid by adapter tube (5) and consolidates eddy flow
Device (6) carries out solid-liquor separation；
2) solid-liquor separation: consolidating the solid particle that cyclone (6) is separated through liquid, enters sand storage tank (7) by adapter tube (5), so
It is discharged by sand discharge pipeline (8), consolidates the liquid that cyclone (6) is separated through liquid and second level T-type pipe (9) is entered by adapter tube (5)
Middle part horizontal tube carry out water-oil separating；
3) water-oil separating: the oil separated through second level T-type pipe (9) passes through the oil pipeline of second level T-type pipe (9) top horizontal pipe
(10) it exports, the sewage separated through second level T-type pipe (9) is exported by the pipeline of second level T-type pipe (9) bottom level pipe；
The sewage separated through second level T-type pipe (9) is output to by the pipeline of second level T-type pipe (9) bottom level pipe
The vertical cyclone of liquid liquid (11) carries out water-oil separating, and the water up to standard of the vertical cyclone of liquid liquid (11) separation enters total outlet pipe line
(13) it exports, permitted discharge does not enter air buoyancy tank (12) progress water-oil separating, and the oil separated through air buoyancy tank (12) is pooled to oil pipe
Line (10) is outer defeated afterwards, outer defeated after the water up to standard of air buoyancy tank (12) separation is pooled to total outlet pipe line (13).
2. the method that oil gas water as described in claim 1 consolidates the separation of four phases, it is characterised in that: the level-one T-type pipe (2) and
Second level T-type pipe (9) is made of upper, middle and lower-ranking horizontal tube and Duo Gen standpipe.
3. the method that oil gas water as claimed in claim 2 consolidates the separation of four phases, it is characterised in that: the liquid consolidates cyclone (6)
Structure is taper or column type, and sand storage tank (7) structure is container pattern or pipe type, the shape of air buoyancy tank (12) be it is rectangular or
It is round.
4. the method that oil gas water as claimed in claim 3 consolidates the separation of four phases, it is characterised in that: the level-one T-type pipe (2) is set
There are gas-liquid interface instrument, temperature monitor and safety valve, second level T-type pipe (9) is equipped with oil-water interface tool, the vertical cyclone of liquid liquid (11)
Water lines up to standard or water pipe not up to standard be equipped with flowmeter.
5. the method that oil gas water as claimed in claim 4 consolidates the separation of four phases, it is characterised in that: the oil gas water consolidates four phases point
From method gas-liquid separation pipeline form a skid body or multiple skid bodys, or directly build on the ground.
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| CN201710256639.XA CN107050930B (en) | 2017-04-19 | 2017-04-19 | A kind of method that oil gas water consolidates the separation of four phases |
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| CN201710256639.XA CN107050930B (en) | 2017-04-19 | 2017-04-19 | A kind of method that oil gas water consolidates the separation of four phases |
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| CN107050930B true CN107050930B (en) | 2019-11-15 |
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| CN109653737B (en) * | 2017-10-11 | 2024-03-22 | 中国石油化工股份有限公司 | Experimental device for simulating thickened oil heat dissipation law |
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| CN101810941A (en) * | 2010-04-13 | 2010-08-25 | 中海石油(中国)有限公司深圳分公司 | Compound oil-water separation system |
| CN102580354A (en) * | 2012-01-18 | 2012-07-18 | 常州大学 | Multi-layer composite T-shaped pipe separator and separation method for separating two-phase flow or multiphase flow |
| CN103785552A (en) * | 2012-11-05 | 2014-05-14 | 中国石油化工股份有限公司 | Fence type oil-gas-water three-phase separation device |
| CN105031977A (en) * | 2015-08-03 | 2015-11-11 | 中国科学院力学研究所 | Oil gas and water multi-phase separating system and application method thereof |
| CN106433764A (en) * | 2016-11-02 | 2017-02-22 | 中国石油化工股份有限公司 | Short-process water pre-separation apparatus for oilfield produced fluid |
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2017
- 2017-04-19 CN CN201710256639.XA patent/CN107050930B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101810941A (en) * | 2010-04-13 | 2010-08-25 | 中海石油(中国)有限公司深圳分公司 | Compound oil-water separation system |
| CN102580354A (en) * | 2012-01-18 | 2012-07-18 | 常州大学 | Multi-layer composite T-shaped pipe separator and separation method for separating two-phase flow or multiphase flow |
| CN103785552A (en) * | 2012-11-05 | 2014-05-14 | 中国石油化工股份有限公司 | Fence type oil-gas-water three-phase separation device |
| CN105031977A (en) * | 2015-08-03 | 2015-11-11 | 中国科学院力学研究所 | Oil gas and water multi-phase separating system and application method thereof |
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