CN106433764B - A kind of pre- turnout reason device of oil field mining liquid short route - Google Patents

A kind of pre- turnout reason device of oil field mining liquid short route Download PDF

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Publication number
CN106433764B
CN106433764B CN201610944705.8A CN201610944705A CN106433764B CN 106433764 B CN106433764 B CN 106433764B CN 201610944705 A CN201610944705 A CN 201610944705A CN 106433764 B CN106433764 B CN 106433764B
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China
Prior art keywords
pipe
oil
cyclone
ladder type
water separation
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CN106433764A (en
Inventor
肖建洪
郝金克
安申法
付法栋
马继良
王刚
刘正
栾智勇
徐传雨
朱秀娟
于滨
陈玲
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China Petroleum and Chemical Corp
Sinopec Research Institute of Petroleum Engineering Shengli Co
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China Petroleum and Chemical Corp
Sinopec Research Institute of Petroleum Engineering Shengli Co
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    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G53/00Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes
    • C10G53/02Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes plural serial stages only
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L3/00Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
    • C10L3/06Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
    • C10L3/10Working-up natural gas or synthetic natural gas
    • C10L3/101Removal of contaminants
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L3/00Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
    • C10L3/06Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
    • C10L3/10Working-up natural gas or synthetic natural gas
    • C10L3/101Removal of contaminants
    • C10L3/106Removal of contaminants of water
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G2300/00Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
    • C10G2300/10Feedstock materials
    • C10G2300/1033Oil well production fluids
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G2300/00Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
    • C10G2300/20Characteristics of the feedstock or the products
    • C10G2300/201Impurities
    • C10G2300/208Sediments, e.g. bottom sediment and water or BSW
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/08Drying or removing water

Abstract

The present invention relates to a kind of pre- turnout reason device of oil field mining liquid short route, the processing applied to oil field mining liquid.One-level above oil-water separation cyclone is in series, and the middle outlet of previous stage oil-water separation cyclone connects with the entrance of rear stage oil-water separation cyclone, and the upper outlet of oil-water separation cyclone is connected with delivery pipeline;The middle outlet of last one-level oil-water separation cyclone is connected with the entrance of ladder type pipe, and the entrance of one-level oil-water separation cyclone is also connected with gas-liquid sand separator.As a result of gas-liquid sand separator, gas and silt particle are efficiently separated.Air-flotation process system preferably eliminates suspended solid and oil droplet in output water.

Description

A kind of pre- turnout reason device of oil field mining liquid short route
Technical field
The present invention relates to the processing system of produced liquid in oil well in oil field development, particularly a kind of oil field mining liquid short route is pre- Turnout manages device.
Background technology
By the exploitation of decades, most domestic oil field all enters High water cut even ultra-high water cut stage, produces liquid measure It is continuously increased, a series of problems, such as load increases, energy consumption rises is brought to oil field ground processing system.Enter in gathering and transferring process front end Row Produced Liquid pre-processes, it is possible to achieve the re-injection on the spot of 30%-50% sewage, mitigates gathering system burden, reduces production cost.
Traditional cyclone can only carry out gas-liquid separation or the larger water-oil phase of oil-water separation density contrast, and for dirt Suspended solid removal effect is poor in water, is generally used for the middle back-end processing link of profit handling process, and front end sewage is located in advance Further handled after managing certain index, have certain water quality requirement to the liquid that comes of entrance.
In general extraction liquid processing device such as three phase separator uses various separation principles, and separative efficiency is high, but takes up an area face Product is larger, it is necessary to Operation and Maintenance, and does not have sewage treatment function.
Chinese patent " fence type oil-gas-water three-phase separation ", number of patent application 201210435339.5, discloses one The separator of the gas that can carry out oil well produced liquid pretreatment, oil and water is planted, the device make use of gas in oil well produced liquid, oil With the density variation of water, separated using the separation of Multi-stage spiral device and ladder type pipe, achieve preferable effect.But the device is still So there is the problem of two aspects, when, when to contain silt particle in liquid, the device can not isolate silt particle;Second, device is arranged The suspended sediment concentration contained in water outlet need further to remove, and this two aspect causes to be consolidated in the output water of device delivery port Body content is not sometimes up to standard, it is impossible to re-injection is carried out directly into well.
The content of the invention
To solve the above problems, having invented a kind of pre- turnout reason device of oil field mining liquid short route, realize oil well and adopt While going out oil, the gas and water separation of liquid, moreover it is possible to remove silt particle and suspended solid, reach produced-water reinjection standard.
The present invention adopts the following technical scheme that:
A kind of pre- turnout reason device of oil field mining liquid short route, one-level above oil-water separation cyclone is in series, previous The middle outlet of level oil-water separation cyclone connects with the entrance of rear stage oil-water separation cyclone, goes out on oil-water separation cyclone Mouth is connected with delivery pipeline;The middle outlet of last one-level oil-water separation cyclone is connected with the entrance of ladder type pipe, primary oil The entrance of water separate hydrocyclone is also connected with gas-liquid sand separator.
Preferred embodiment one:Described gas-liquid sand separator is cyclone, is gone out under setting cyclone in the bottom of cyclone Mouthful, cyclone upper outlet is connected with exhaust line, and cyclone middle outlet is connected with the entrance of one-level oil-water separation cyclone. Ladder type pipe bottom sets bubble generator, the junction not vertical throwing with any vertical separation pipe of bubble generator and ladder type pipe Shadow face overlaps;Gas-distributing pipe line is set on gas main line, and gas-distributing pipe line is connected with bubble generator;The gas of gas main line enters Mouth is connected with exhaust line and air pump simultaneously.
Preferred embodiment two:Described gas-liquid sand separator is compound ladder type pipe, and compound ladder type pipe includes what is laterally set Upper flat pipe, in put down pipe and lower oblique tube, wherein upper flat pipe and in put down that pipe is horizontally disposed, and lower oblique tube is obliquely installed, upper separating pipe is linked up Upper flat pipe and in put down pipe, lower separating pipe puts down pipe and lower oblique tube in linking up;In the compound ladder type pipe upper outlet of the end set of upper flat pipe It is connected with exhaust line, the entrance of the compound ladder type pipe middle outlet of the end set of flat pipe and one-level oil-water separation cyclone in It is connected, is exported in the case where the low side of lower oblique tube sets compound ladder type pipe.The lower separating pipe of described compound ladder type pipe is vertically to set Put or be obliquely installed.Ladder type pipe bottom sets bubble generator, the junction of bubble generator and ladder type pipe not with it is any vertical The vertical plane of separating pipe overlaps;Gas-distributing pipe line is set on gas main line, and gas-distributing pipe line is connected with bubble generator;Always The gas access of gas pipeline is connected with exhaust line and air pump simultaneously.
Preferred embodiment three:Described gas-liquid sand separator is the complex of cyclone and ladder type pipe two, in cyclone Bottom sets and exported under cyclone, and cyclone upper outlet is connected with delivery pipeline, cyclone middle outlet and one-level water-oil separating The entrance of cyclone is connected, and the upper outlet of ladder type pipe two is connected with delivery pipeline, the lower outlet of ladder type pipe two and cyclone Entrance be connected.Ladder type pipe bottom sets bubble generator, the junction of bubble generator and ladder type pipe not with it is any vertical The vertical plane of separating pipe overlaps;Gas-distributing pipe line is set on gas main line, and gas-distributing pipe line is connected with bubble generator;Always The gas access of gas pipeline is connected with air pump.
Preferred embodiment four:Described gas-liquid sand separator is cyclone, is gone out under setting cyclone in the bottom of cyclone Mouthful, cyclone upper outlet is connected with exhaust line, and cyclone middle outlet is connected with the entrance of one-level oil-water separation cyclone. In the connecting pipeline of cyclone and one-level oil-water separation cyclone and final stage oil-water separation cyclone and ladder type pipe connection Each one carbo-charger of concatenation, the gas access of carbo-charger are connected with exhaust line and air pump simultaneously on pipeline.
Preferred embodiment five:Described gas-liquid sand separator is compound ladder type pipe, and compound ladder type pipe includes what is laterally set Upper flat pipe, in put down pipe and lower oblique tube, wherein upper flat pipe and in put down that pipe is horizontally disposed, and lower oblique tube is obliquely installed, upper separating pipe is linked up Upper flat pipe and in put down pipe, lower separating pipe puts down pipe and lower oblique tube in linking up;In the compound ladder type pipe upper outlet of the end set of upper flat pipe It is connected with exhaust line, the entrance of the compound ladder type pipe middle outlet of the end set of flat pipe and one-level oil-water separation cyclone in It is connected, is exported in the case where the low side of lower oblique tube sets compound ladder type pipe.The lower separating pipe of described compound ladder type pipe is vertically to set Put or be obliquely installed.In the connecting pipeline of one-level oil-water separation cyclone and two level oil-water separation cyclone and final stage profit Separate hydrocyclone is with each concatenating a carbo-charger, the gas access of carbo-charger while and blast pipe in the connecting pipeline of ladder type pipe Line is connected with air pump.
Preferred embodiment six:Described gas-liquid sand separator is the complex of cyclone and ladder type pipe two, in cyclone Bottom sets and exported under cyclone, and cyclone upper outlet is connected with delivery pipeline, cyclone middle outlet and one-level water-oil separating The entrance of cyclone is connected, and the upper outlet of ladder type pipe two is connected with delivery pipeline, the lower outlet of ladder type pipe two and cyclone Entrance be connected.A carbo-charger is concatenated with the connecting pipeline of ladder type pipe in final stage oil-water separation cyclone, carbo-charger Gas access is connected with air pump.
Compared with prior art, the beneficial effects of the present invention are:
1. being provided with sand export as a result of cyclone and in its bottom, or employ compound ladder type pipe and in its underpart The low side of tipping tube sets sand export, because the density of silt particle is high, has been carried out effectively with regard to silt particle in cyclone or compound ladder type pipe Separation.
2. the present apparatus is provided with carbo-charger in the different parts of device and carries out air-flotation process to Produced Liquid, can be according to production fluid Different output and characteristic select different air supporting mode, be advantageous to preferably remove the suspended solid and oil droplet in output water.
3. the present apparatus can carry out air-flotation process using the gas that the present apparatus is isolated in itself, device volume can be reduced, is subtracted Gas fees needed for plant construction investment and air-flotation process are lacked.
4. Produced Liquid pretreatment unit takes up an area less, handled using physical method, do not add chemical agent, unmanned value can be realized Keep, thus can be applied to measuring station even production wellhead, realized in limited time and place space sewage quickly divide on the spot water, Re-injection on the spot.
Brief description of the drawings
The present invention is above simply described, enters one with reference next to the drawing of the specific examples below of the description present invention Step, in detail the narration present invention.These drawings only describe some typical embodiments of the invention, therefore are not construed as limiting The scope of the present invention processed.In these drawings:
Fig. 1 is the structural representation of the pre- turnout reason device preferred embodiment one of oil field mining liquid short route of the present invention.
Fig. 2 is the pre- structural representation of turnout reason device preferred embodiment two of oil field mining liquid short route of the present invention, is schemed In lower separating pipe be to be vertically arranged.
Fig. 3 is the pre- structural representation of turnout reason device preferred embodiment two of oil field mining liquid short route of the present invention, is schemed In lower separating pipe be to be obliquely installed.
Fig. 4 is the structural representation of the pre- turnout reason device preferred embodiment three of oil field mining liquid short route of the present invention.
Fig. 5 is the structural representation of the pre- turnout reason device preferred embodiment four of oil field mining liquid short route of the present invention.
Fig. 6 is the pre- structural representation of turnout reason device preferred embodiment five of oil field mining liquid short route of the present invention, is schemed In lower separating pipe be to be vertically arranged.
Fig. 7 is the pre- structural representation of turnout reason device preferred embodiment five of oil field mining liquid short route of the present invention, is schemed In lower separating pipe be to be obliquely installed.
Fig. 8 is the pre- structural representation of turnout reason device preferred embodiment six of oil field mining liquid short route of the present invention.
Fig. 9 is the structural representation of bubble generator.
Embodiment
As shown in Fig. 1 and Fig. 9, one-level oil-water separation cyclone 2 and two level oil-water separation cyclone 3 are in series, primary oil The middle outlet of water separate hydrocyclone 2 connects with the entrance of two level oil-water separation cyclone 3, I and II oil-water separation cyclone Upper outlet is connected with delivery pipeline 8;The middle outlet of two level oil-water separation cyclone 3 is connected with the entrance of ladder type pipe 9, and one The entrance of level oil-water separation cyclone 2 is also connected with cyclone 1.The outlet of the upper horizontal tube of ladder type pipe and the phase of delivery pipeline 8 Connection, the outlet of lower horizontal tube are connected with flowing line 13, discharge the water separated.
Cyclone 1, one-level oil-water separation cyclone 2 and two level oil-water separation cyclone 3 are all cyclone, its structure and work Make principle substantially with " a kind of axial-flow type goes out to flow cyclone separator, Chinese patent, number of patent application in the same direction 201210196516.9 " and " a kind of Xushui device of pipe type distributor oil water separator, Chinese patent, number of patent application 201110220538.X " identical.Cyclone be all side wall top set come liquid entrance, side wall bottom density of setting compared with The outlet of big separating liquid, is referred to as middle outlet in present specification;The outlet of the smaller separating liquid of density of setting or gas at top.Institute It is used to discharge the silt particle isolated the difference is that adding outlet 10 under cyclone in the bottom of cyclone 1.Described profit point Be in series the entrance phase of the middle outlet with rear stage oil-water separation cyclone that refer to previous stage oil-water separation cyclone from cyclone Connection.Connection in present specification respectively between outlet and entrance refers to the connection carried out with pipeline.
Often contain the natural gas of a small amount of silt particle and inequality in the production liquid of oil well, in order to improve separative efficiency, reduce The abrasion and blocking of rear stage separator, device discharge separation water is set to reach the standard of reinjected water, it is necessary to first that silt particle is gentle Body is separated from the production liquid of oil well.According to the function distinguishing of each cyclone, cyclone 1 is referred to as gas-liquid sand separator, its Cyclone upper outlet 12 discharges the gas isolated and enters exhaust line 7, and outlet 10 is for discharging the mud isolated under cyclone Sand.Cyclone for oil-water separation is called oil-water separation cyclone, according to the production liquid situation of oil well, oil-water separation cyclone 1~4 can be used, multiple oil-water separation cyclones are used in series, claiming in the oil-water separation cyclone for initially coming liquid end For one-level oil-water separation cyclone, below then the like for two level oil-water separation cyclone, three-level oil-water separation cyclone, Level Four oil-water separation cyclone.
In order to improve treatment effect, solid particle and small oil droplet that further separation suspends, air-flotation system can be also set up, is wrapped Include gas main line 5, gas-distributing pipe line 6, air pump 4, bubble generator 15 and corresponding connecting pipeline.
The bottom of ladder type pipe 9 sets bubble generator 15, to improve air flotation effect, the company of bubble generator 15 and ladder type pipe 9 Vertical plane of the place of connecing not with any vertical separation pipe 14 overlaps;Gas-distributing pipe line 6, gas-distributing pipe line 6 are set on gas main line 5 It is connected with bubble generator 15;The gas access of gas main line 5 is connected with exhaust line 7 and air pump 4 simultaneously.
As shown in Figure 9, bubble generator 15 includes housing 16 and porous plate 17 to the structure of bubble generator 15.Porous plate 17 In housing 16, there is cavity between the lower section of porous plate 17 and housing 16.Porous plate 17 is for producing bubble, is a kind of Medium with a large amount of apertures, it can be one piece of metallic plate, onboard be drilled with aperture, and the diameter of aperture is not more than 0.1mm;It is more Orifice plate can also add plastic bonding to be formed using quartz sand, and this method using plastic bonding quartz sand is in the prefabricated sand control in oil field Widely used in the making of pipe.
, then can be without using air pump 4, if the tolerance in exhaust line 7 if the tolerance in exhaust line 7 is sufficient in production Deficiency, then air pump 4 can be used to be supplemented by external gas source.Such design, the separation gas of the system is taken full advantage of, can be reduced Operating cost.
Valve and flowmeter, as shown in fig. 1, following embodiment can be set on pipeline in the present apparatus as needed Explanation in repeat no more.
Referring to Fig. 2, in the present embodiment, described gas-liquid sand separator is compound ladder type pipe 21, and compound ladder type pipe 21 wraps Include laterally set upper flat pipe 22, in flat pipe 24 and lower oblique tube 25, wherein upper flat pipe 22 and in flat pipe 24 it is horizontally disposed, lower oblique tube 25 are obliquely installed, and upper separating pipe 23 links up upper flat pipe 22 flat pipe 24 with, flat pipe 24 and lower oblique tube 25 during lower separating pipe 26 is linked up; It is connected in the compound ladder type pipe upper outlet 27 of end set of upper flat pipe 22 with exhaust line 7, the end set of flat pipe 24 in Compound ladder type pipe middle outlet 28 is connected with the entrance of one-level oil-water separation cyclone 2, is set in the low side of lower oblique tube 25 compound 29 are exported under ladder type pipe.The lower separating pipe 26 of described compound ladder type pipe 21 is to be vertically arranged.In order to improve treatment effect, enter one The solid particle and small oil droplet that step separation suspends, setting air-flotation system, its structure are identical with Fig. 1 with connected mode.At this In embodiment, oil-water separation cyclone is provided with three-level, including one-level oil-water separation cyclone 2, two level oil-water separation cyclone 3rd, three-level oil-water separation cyclone 20.
Apparatus structure shown in Fig. 3 is that the lower separating pipe 26 of described compound ladder type pipe 21 is to incline with Fig. 2 differences Tiltedly set, other parts are identical.
When amount of natural gas is less contained by the production fluid of oil well, it is not necessary to the separation of gas is considered, at this moment in Fig. 2 embodiments Structure can simplify, save exhaust line, the structure after simplifying is referring to Fig. 4, gas-liquid sand separation described in the present embodiment Device is the complex of cyclone 1 and ladder type pipe 2 41, sets outlet 10 under cyclone to be used to discharge mud in the bottom of cyclone 1 Sand, cyclone upper outlet 12 are connected with delivery pipeline 8, the entrance of cyclone middle outlet 11 and one-level oil-water separation cyclone 2 It is connected, the upper outlet of ladder type pipe 2 41 is connected with delivery pipeline 8, the lower outlet of ladder type pipe 2 41 and the entrance of cyclone 1 It is connected.In the setting of the present embodiment, the setting of air-flotation system is carbo-charger and the phase of air pump 4 with Fig. 1 difference Connection.
Referring to Fig. 5, in order to further improve the separating effect of suspension, air supporting system is improved on the basis of Fig. 1 structures System.In the connecting pipeline of cyclone 1 and one-level oil-water separation cyclone 2 and final stage oil-water separation cyclone and ladder type pipe 9 Connecting pipeline on each one carbo-charger 50 of concatenation, the gas access of carbo-charger 50 are connected with exhaust line 7 and air pump 4 simultaneously Connect.In Figure 5, final stage oil-water separation cyclone refers to two level oil-water separation cyclone 3.
In present specification, the structure of carbo-charger 50 can use " the micro air bubble based on board-like microporous medium foaming mechanism Generating means, Chinese patent and other similar can produce structure disclosed in number of patent application 201410239584.8 " The gas mixing device of bubble.
Referring to Fig. 6 and Fig. 7, in order to further improve the separating effect of suspension, change on the basis of Fig. 2 and Fig. 3 structures Air-flotation system is entered.In the connecting pipeline of one-level oil-water separation cyclone 2 and two level oil-water separation cyclone 3 and final stage is oily Water separate hydrocyclone in the connecting pipeline of ladder type pipe 9 with each concatenating a carbo-charger 50, and the gas access of carbo-charger 50 is simultaneously It is connected with exhaust line 7 and air pump 4.In Fig. 6 or Fig. 7, final stage oil-water separation cyclone refers to two level water-oil separating eddy flow Device 20.
Referring to Fig. 8, the present embodiment is the improvement to air-flotation system on the basis of Fig. 4 embodiments, in final stage water-oil separating Cyclone concatenates a carbo-charger 50 with the connecting pipeline of ladder type pipe 9, and the gas access of carbo-charger 50 is connected with air pump 4. In fig. 8, final stage oil-water separation cyclone refers to two level oil-water separation cyclone 20.
Embodiment as described herein is only exemplary embodiments, but is not limited only to these embodiments, those skilled in the art Member can make modification under without departing from the spirit of the present invention and enlightenment.Aspect disclosed herein there may be many changes, Combination and modification, and be within, therefore, protection domain is not limited only to explanation above, but according to right It is required that to define, protection domain includes all equivalents of the target of claim.

Claims (12)

1. a kind of pre- turnout reason device of oil field mining liquid short route, one-level above oil-water separation cyclone are in series, previous stage Oil-water separation cyclone(2)Middle outlet and rear stage oil-water separation cyclone(3)Entrance connect, oil-water separation cyclone Upper outlet is and delivery pipeline(8)It is connected;The middle outlet of last one-level oil-water separation cyclone and ladder type pipe(9)Entrance be connected Connect, one-level oil-water separation cyclone(2)Entrance be also connected with gas-liquid sand separator, it is characterised in that described gas-liquid sand Separator is compound ladder type pipe(21)Or cyclone(1)With ladder type pipe two(41)Complex;Described cyclone(1)With ladder type Pipe two(41)Complex, in cyclone(1)Bottom set cyclone under export(10), cyclone upper outlet(12)With oil extraction Pipeline(8)It is connected, cyclone middle outlet(11)With one-level oil-water separation cyclone(2)Entrance be connected, ladder type pipe two (41)Upper outlet and delivery pipeline(8)It is connected, ladder type pipe two(41)Lower outlet and cyclone(1)Entrance be connected.
2. the pre- turnout reason device of a kind of oil field mining liquid short route according to claim 1, it is characterised in that described Compound ladder type pipe(21)Including the upper flat pipe laterally set(22), in put down pipe(24)And lower oblique tube(25), wherein upper flat pipe(22) Pipe is put down with(24)It is horizontally disposed, lower oblique tube(25)It is obliquely installed, upper separating pipe(23)Pipe is put down in communication(22)Pipe is put down with (24), lower separating pipe(26)Pipe is put down in communication(24)And lower oblique tube(25);In upper flat pipe(22)The compound ladder type pipe of end set Upper outlet(27)With exhaust line(7)It is connected, pipe is put down in(24)The compound ladder type pipe middle outlet of end set(28)With one Level oil-water separation cyclone(2)Entrance be connected, in lower oblique tube(25)Low side set and exported under compound ladder type pipe(29).
3. the pre- turnout reason device of a kind of oil field mining liquid short route according to claim 2, it is characterised in that described Compound ladder type pipe(21)Lower separating pipe(26)It is to be vertically arranged.
4. the pre- turnout reason device of a kind of oil field mining liquid short route according to claim 2, it is characterised in that described Compound ladder type pipe(21)Lower separating pipe(26)It is to be obliquely installed.
A kind of 5. pre- turnout reason device of oil field mining liquid short route according to claim 3, it is characterised in that ladder type pipe (9)Bottom sets bubble generator(15), bubble generator(15)With ladder type pipe(9)Junction not with any vertical separation pipe (14)Vertical plane overlap;Gas main line(5)Upper setting gas-distributing pipe line(6), gas-distributing pipe line(6)With bubble generator (15)It is connected;Gas main line(5)Gas access simultaneously and exhaust line(7)And air pump(4)It is connected.
A kind of 6. pre- turnout reason device of oil field mining liquid short route according to claim 4, it is characterised in that ladder type pipe (9)Bottom sets bubble generator(15), bubble generator(15)With ladder type pipe(9)Junction not with any vertical separation pipe (14)Vertical plane overlap;Gas main line(5)Upper setting gas-distributing pipe line(6), gas-distributing pipe line(6)With bubble generator (15)It is connected;Gas main line(5)Gas access simultaneously and exhaust line(7)And air pump(4)It is connected.
A kind of 7. pre- turnout reason device of oil field mining liquid short route according to claim 1, it is characterised in that ladder type pipe (9)Bottom sets bubble generator(15), bubble generator(15)With ladder type pipe(9)Junction not with any vertical separation pipe (14)Vertical plane overlap;Gas main line(5)Upper setting gas-distributing pipe line(6), gas-distributing pipe line(6)With bubble generator (15)It is connected;Gas main line(5)Gas access and air pump(4)It is connected.
8. the pre- turnout reason device of a kind of oil field mining liquid short route according to claim 3, it is characterised in that in one-level Oil-water separation cyclone(2)With two level oil-water separation cyclone(3)Connecting pipeline on and final stage oil-water separation cyclone (20)With ladder type pipe(9)Connecting pipeline on each concatenation one carbo-charger(50), carbo-charger(50)Gas access simultaneously with Exhaust line(7)And air pump(4)It is connected.
9. the pre- turnout reason device of a kind of oil field mining liquid short route according to claim 4, it is characterised in that in one-level Oil-water separation cyclone(2)With two level oil-water separation cyclone(3)Connecting pipeline on and final stage oil-water separation cyclone (20)With ladder type pipe(9)Connecting pipeline on each concatenation one carbo-charger(50), carbo-charger(50)Gas access simultaneously with Exhaust line(7)And air pump(4)It is connected.
10. the pre- turnout reason device of a kind of oil field mining liquid short route according to claim 1, it is characterised in that at end Level oil-water separation cyclone(20)With ladder type pipe(9)Connecting pipeline on concatenate a carbo-charger(50), carbo-charger(50)Gas Body entrance and air pump(4)It is connected.
11. the pre- turnout reason device of a kind of oil field mining liquid short route according to claim 5~7 any claim, Characterized in that, described bubble generator(15)The porous plate of interior setting(17)It is metallic plate, is equipped with diameter on a metal plate Hole no more than 0.1mm.
12. the pre- turnout reason device of a kind of oil field mining liquid short route according to claim 5~7 any claim, Characterized in that, described bubble generator(15)The porous plate of interior setting(17)It is cementing quartz sand plate.
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