CN104857811A - Oil field carbon dioxide driving extraction gas carbon dioxide separating recovery system - Google Patents

Oil field carbon dioxide driving extraction gas carbon dioxide separating recovery system Download PDF

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Publication number
CN104857811A
CN104857811A CN201510226107.2A CN201510226107A CN104857811A CN 104857811 A CN104857811 A CN 104857811A CN 201510226107 A CN201510226107 A CN 201510226107A CN 104857811 A CN104857811 A CN 104857811A
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gas
outlet
compressor
oil
carbon dioxide
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CN104857811B (en
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陆诗建
李清方
张建
刘海丽
张启阳
尚明华
张媛媛
陆胤君
张新军
韩霞
王田丽
王子明
孙广领
李毅
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China Petrochemical Corp
Sinopec Oilfield Service Corp
Sinopec Petroleum Engineering Corp
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Sinopec Petroleum Engineering Corp
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02CCAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00Capture or disposal of greenhouse gases
    • Y02C20/40Capture or disposal of greenhouse gases of CO2

Abstract

The invention provides an oil field carbon dioxide driving extraction gas carbon dioxide separating recovery system. The oil field carbon dioxide driving extraction gas carbon dioxide separating recovery system comprises an oil gas separating tower, a first compressor, a cooler, a condensation filter, a heat exchanger, an activated carbon adsorption bed, a particle filter, a heater, a second compressor and a membrane separation device. According to the oil field carbon dioxide driving extraction gas carbon dioxide separating recovery system, on basis of arrangement of the oil gas separating tower, the first compressor, the cooler, the condensation filter, the heater exchanger, the activated carbon adsorption bed, the particle filter, the heater, the second compressor and the membrane separation device, carbon dioxide gas coarse-fine separation from high carbon dioxide concentration extraction gas can be achieved, and the system is suitable for single well extraction gas carbon dioxide separation and applied to separating recovery of carbon dioxide in oil field small and medium-scale extraction gas.

Description

Oil field carbon dioxide flooding extraction air carbon dioxide separation and recovery system
Technical field
The present invention relates to carbon dioxide separation and reclaim field, particularly a kind of oil field carbon dioxide flooding extraction air carbon dioxide separation and recovery system.
Background technology
Along with the large-scale promotion of carbon dioxide flooding tertiary oil recovery technology, carbon dioxide flooding produced liquid surface technology is faced with some difficult problems: one is after carbon dioxide is injected into underground, about have 50% ~ 60% to be stored in underground by permanent envelope, remaining 40% ~ 50% along with associated gas overflow.Because height is containing CO 2, carbon dioxide flooding extraction gas can not enter collection transmission pipe network without the process of necessity or be lighted, and can only directly discharge, this both polluted environment, wasted again natural gas, CO 2resource, reduces carbon dioxide drive and buries effect; Two is owing to containing a large amount of CO in Produced Liquid simultaneously 2and water, cause Produced Liquid gathering line and equipment corrosion aggravation, bring many difficult problems to oil gas gathering production, improve production run and maintenance cost.
On-the-spot extraction gas generally has following features: 1. carbon dioxide content is high, generally can reach 60% ~ 90%; 2. C5+ hydrocarbon content is high; 3. the oxygen-free gas of extraction gas and sulfide gas; 4. entraining liquid crude oil in extraction gas; 5. moisture vapor in extraction gas.
For CO 2drive the feature of extraction gas, the technique that can be used for the separation of extraction air carbon dioxide mainly contains the processes such as chemical absorption method, Physical Absorption method, pressure swing adsorption method, cryogenic distillation process and cryogenic freezing amine method.
For on-the-spot extraction gas feature, CO 2content is higher, and chemical absorption method cannot realize high concentration extraction gas CO 2be separated; Single well gas flow of giving vent to anger is relatively low, and therefore treatment scale is less, pressure swing adsorption method complex process equipment, and process matched therewith, control appliance are loaded down with trivial details, is therefore not suitable for extraction gas disposal on a small scale; Also there is the shortcoming of complex process equipment in membranes, cryogenic fractionation simultaneously, is not suitable for extraction gas disposal on a small scale.
Summary of the invention
In view of Problems existing in background technology, the object of the present invention is to provide a kind of oil field carbon dioxide flooding extraction air carbon dioxide separation and recovery system, can realize deviating from compared with the thick essence of carbon dioxide of high carbon dioxide concentration extraction gas, applicable single well is given vent to anger carbon dioxide separation, and is applicable to the separation and recovery of carbon dioxide in oil field middle and small scale extraction gas.
To achieve these goals, the invention provides a kind of oil field carbon dioxide flooding extraction air carbon dioxide separation and recovery system, it comprises: Oil-gas Separation tower, the first compressor, cooler, condensation filter, heat exchanger, activated carbon adsorption bed, particulate filter, heater, the second compressor and membrane separation device.
Oil-gas Separation tower has: Oil-gas Separation tower tower body, inside has Oil-gas Separation Ta Ta chamber; Oil-gas Separation tower entrance, is arranged at Oil-gas Separation tower tower body, for passing in Oil-gas Separation Ta Ta chamber for the oil field carbon dioxide flooding extraction gas from gas well as unstripped gas; First Oil-gas Separation tower outlet, is arranged at the bottom of Oil-gas Separation tower tower body, is communicated in Oil-gas Separation Ta Ta chamber and is communicated in outside; And second Oil-gas Separation tower outlet, be arranged at the top of Oil-gas Separation tower tower body and be communicated in Oil-gas Separation Ta Ta chamber.First compressor has: the first suction port of compressor, is communicated in the second Oil-gas Separation tower outlet; And first compressor outlet.Cooler has: cooler entrance, is communicated in the first compressor outlet; And cooler outlet.Condensation filter has: condensation filter inlet, is communicated in cooler outlet; First condensation filter outlet, is communicated in outside; And second condensation filter outlet.Heat exchanger has: First Heat Exchanger entrance, is communicated in the second condensation filter outlet; First Heat Exchanger exports; Second heat exchanger entrance, is communicated in the first compressor outlet; And second heat exchanger exit, be communicated in cooler entrance.Activated carbon adsorption bed has: activated carbon adsorption bed entrance, is communicated in First Heat Exchanger outlet; And activated carbon adsorption bed outlet.Particulate filter has: particulate filter entrance, is communicated in activated carbon adsorption bed outlet; And particulate filter outlet.Heater has: calorifier inlets, is communicated in particulate filter outlet; And heater outlet.Second compressor has: the second suction port of compressor, is communicated in heater outlet; And second compressor outlet.And membrane separation device, be communicated in the second compressor outlet and there is film.
Wherein, unstripped gas enters Oil-gas Separation Ta Ta chamber via Oil-gas Separation tower entrance, and in Oil-gas Separation tower, the liquid crude oil of unstripped gas entrained with is separated and is collected in Oil-gas Separation Ta Ta chamber; Unstripped gas after separation enters the first compressor via the second Oil-gas Separation tower outlet and the first suction port of compressor, and pressurizes in the first compressor; Unstripped gas after pressurization enters cooler via the first compressor outlet and the first cooler entrance, and cooled in cooler, to be made entraining liquid composition in unstripped gas by cooling; Cooled unstripped gas enters condensation metre filter via cooler outlet and condensation filter inlet, the liquid parts condensation that unstripped gas is carried secretly in condensation filter, filter and be collected in condensation filter, the unstripped gas after filtration enters heat exchanger and carries out heat exchange via the second condense filter outlet and First Heat Exchanger entrance and be preheated; Unstripped gas after preheating enters activated carbon adsorption bed via First Heat Exchanger outlet and activated carbon adsorption bed entrance, and the C+ hydrocarbon contained by unstripped gas in activated carbon adsorption bed removes; The unstripped gas removing C+ hydrocarbon enters particulate filter, to remove the particle of the solid activated carbon that unstripped gas contains via activated carbon adsorption bed outlet and particulate filter entrance; Unstripped gas after particle filtering enters heater via particulate filter outlet and calorifier inlets, and heats in heater, ensures that the temperature of unstripped gas is all the time higher than hydrocarbon dew point, prevents the temperature of unstripped gas from reducing and occurring that heavy hydrocarbon condensation is separated out; Unstripped gas after heating enters the second compressor via heater outlet and the second suction port of compressor, and pressurizes in the second compressor; Unstripped gas after the second compressor pressurizes enters membrane separation device, gas and infiltration gas is retained to obtain after the film process of membrane separation device, retaining gas is the gas product that qualified carbon dioxide purity is low, and infiltration gas is the gas product that qualified carbon dioxide purity is high.
Beneficial effect of the present invention is as follows: in oil field carbon dioxide flooding extraction air carbon dioxide separation and recovery system according to the present invention, based on the setting of Oil-gas Separation tower, the first compressor, cooler, condensation filter, heat exchanger, activated carbon adsorption bed, particulate filter, heater, the second compressor and membrane separation device, can realize deviating from compared with the thick essence of carbon dioxide of high carbon dioxide concentration extraction gas, applicable single well is given vent to anger carbon dioxide separation, and is applicable to the separation and recovery of carbon dioxide in oil field middle and small scale extraction gas.
Accompanying drawing explanation
Fig. 1 is the schematic diagram according to oil field carbon dioxide flooding extraction air carbon dioxide separation and recovery system of the present invention.
Wherein, description of reference numerals is as follows:
1 Oil-gas Separation tower 7 particulate filter
11 Oil-gas Separation tower tower body 71 particulate filter entrances
111 Oil-gas Separation Ta Ta chamber 72 particulate filter outlets
12 Oil-gas Separation tower entrance 8 heaters
13 first Oil-gas Separation towers export 81 calorifier inlets
14 second Oil-gas Separation towers export 82 heater outlets
15 filter screen 9 second compressors
2 first compressor 91 second suctions port of compressor
21 first suction port of compressor 92 second compressor outlets
22 first compressor outlet 10 membrane separation devices
3 cooler 101 one-level membrane separators
31 cooler entrance 1011 one-level films
32 cooler outlet 1012 one-level membrane separator entrances
4 condensation filter 1,013 first one-level membrane separator outlets
41 condensation filter inlet 1,014 second one-level membrane separator outlets
42 first condensation filter outlet 102 the 3rd compressors
43 second condensation filter outlet 1021 the 3rd suctions port of compressor
5 heat exchangers 1022 the 3rd compressor outlet
51 First Heat Exchanger entrance 103 secondary membrane separators
52 First Heat Exchangers export 1031 secondary films
53 second heat exchanger entrance 1032 secondary membrane separator entrances
54 second heat exchanger exit 1,033 first secondary membrane separator outlets
6 activated carbon adsorption bed 1,034 second secondary membrane separator outlets
61 activated carbon adsorption bed entrance P2, P2 oil pipelines
62 activated carbon adsorption bed outlets
Detailed description of the invention
Describe in detail with reference to the accompanying drawings according to oil field carbon dioxide flooding extraction air carbon dioxide separation and recovery system of the present invention.
With reference to Fig. 1, oil field carbon dioxide flooding extraction air carbon dioxide separation and recovery system according to the present invention comprises: Oil-gas Separation tower 1, first compressor 2, cooler 3, condensation filter 4, heat exchanger 5, activated carbon adsorption bed 6, particulate filter 7, heater 8, second compressor 9 and membrane separation device 10.
Oil-gas Separation tower 1 has: Oil-gas Separation tower tower body 11, inside has Oil-gas Separation Ta Ta chamber 111; Oil-gas Separation tower entrance 12, is arranged at Oil-gas Separation tower tower body 11, for passing in Oil-gas Separation Ta Ta chamber 111 for the oil field carbon dioxide flooding extraction gas from gas well as unstripped gas; First Oil-gas Separation tower outlet 13, is arranged at the bottom of Oil-gas Separation tower tower body 11, is communicated in Oil-gas Separation Ta Ta chamber 111 and is communicated in outside; And second Oil-gas Separation tower outlet 14, be arranged at the top of Oil-gas Separation tower tower body 11 and be communicated in Oil-gas Separation Ta Ta chamber 111.
First compressor 2 has: the first suction port of compressor 21, is communicated in the second Oil-gas Separation tower outlet 14; And first compressor outlet 22.
Cooler 3 has: cooler entrance 31, is communicated in the first compressor outlet 22; And cooler outlet 32.
Condensation filter 4 has: condensation filter inlet 41, is communicated in cooler outlet 32; First condensation filter outlet 42, is communicated in outside; And second condensation filter outlet 43.
Heat exchanger 5 has: First Heat Exchanger entrance 51, is communicated in the second condensation filter outlet 43; First Heat Exchanger outlet 52; Second heat exchanger entrance 53, is communicated in the first compressor outlet 22; And second heat exchanger exit 54, be communicated in cooler entrance 31.
Activated carbon adsorption bed 6 has: activated carbon adsorption bed entrance 61, is communicated in First Heat Exchanger outlet 52; And activated carbon adsorption bed outlet 62.
Particulate filter 7 has: particulate filter entrance 71, is communicated in activated carbon adsorption bed outlet 62; And particulate filter outlet 72.
Heater 8 has: calorifier inlets 81, is communicated in particulate filter outlet 72; And heater outlet 82;
Second compressor 9 has: the second suction port of compressor 91, is communicated in heater outlet 82; And second compressor outlet 92.
Membrane separation device 10 is communicated in the second compressor outlet 92 and has film.
Wherein, unstripped gas enters Oil-gas Separation Ta Ta chamber 111 via Oil-gas Separation tower entrance 12, and in Oil-gas Separation tower 1, the liquid crude oil of unstripped gas entrained with is separated and is collected in Oil-gas Separation Ta Ta chamber 111; Unstripped gas after separation enters the first compressor 2 via the second Oil-gas Separation tower outlet 14 and the first suction port of compressor 21, and pressurizes in the first compressor 2; Unstripped gas after pressurization enters cooler 3 via the first compressor outlet 22 and the first cooler entrance 31, and cooledly in cooler 3 (make the temperature of unstripped gas be reduced to lower than water dew point, thus for the saturation water in follow-up removal unstripped gas), to make entraining liquid composition in unstripped gas and the dew point (thus being conducive to ensureing the normal operation of consequent activities charcoal adsorbent bed 6 and membrane separation device 10) reducing unstripped gas by cooling; Cooled unstripped gas enters condensation filter 4 via cooler outlet 32 and condensation filter inlet 41 and filters, liquid parts condensation (namely dewater, de-heavy hydrocarbon process) that unstripped gas is carried secretly in condensation filter 4, filter and be collected in condensation filter 4, the unstripped gas after filtration enters heat exchanger 5 and carries out heat exchange via the second condense filter outlet 43 and First Heat Exchanger entrance 51 and be preheated; Unstripped gas after preheating enters activated carbon adsorption bed 6 via First Heat Exchanger outlet 52 and activated carbon adsorption bed entrance 61, the C5+ hydrocarbon (its relative C1-C4 hydrocarbon dew point is high) contained by unstripped gas in activated carbon adsorption bed 6 removes (thus the dew point retaining gas and infiltration gas being conducive to making the film process of membrane separation device 10 below to obtain reduces, and is conducive to the normal operation of membrane separation device 10); The unstripped gas removing C5+ hydrocarbon enters particulate filter 7 via activated carbon adsorption bed outlet 62 and particulate filter entrance 71, to remove the particle (to avoid the film of membrane separation device 10 described after particle damage) of the solid activated carbon that unstripped gas contains; Unstripped gas after particle filtering enters heater 8 via particulate filter outlet 72 and calorifier inlets 81, and heats in heater 8, ensures that the temperature of unstripped gas is all the time higher than hydrocarbon dew point, prevents the temperature of unstripped gas from reducing and occurring that heavy hydrocarbon condensation is separated out; Unstripped gas after heating via heater outlet 82 and and the second suction port of compressor 91 enter the second compressor 9, and in the second compressor 9 pressurize; Unstripped gas after the second compressor 9 pressurizes enters membrane separation device 10, gas and infiltration gas is retained to obtain after the film process of membrane separation device 10, retaining gas is the gas product that qualified carbon dioxide purity is low, and infiltration gas is the gas product that qualified carbon dioxide purity is high.Wherein, in reality growth, the gas that retains of low carbon dioxide (<30%) can be used as gathering station furnace fuel or heating use; Infiltration gas is the carbon dioxide that purity is higher, can select to recycle or directly discharge.
In oil field carbon dioxide flooding extraction air carbon dioxide separation and recovery system according to the present invention, based on the setting of Oil-gas Separation tower 1, first compressor 2, cooler 3, condensation filter 4, heat exchanger 5, activated carbon adsorption bed 6, particulate filter 7, heater 8, second compressor 9 and membrane separation device 10, can realize deviating from compared with the thick essence of carbon dioxide of high carbon dioxide concentration extraction gas, applicable single well is given vent to anger carbon dioxide separation, and is applicable to the separation and recovery of carbon dioxide in oil field middle and small scale extraction gas.
In one embodiment, with reference to Fig. 1, Oil-gas Separation tower 1 is provided with filter screen 15, and filter screen 15 is isolated by filtering the liquid crude oil carried secretly by unstripped gas and is collected in Oil-gas Separation Ta Ta chamber 111.
In one embodiment, with reference to Fig. 1, the first Oil-gas Separation tower outlet 13 is communicated in outside via oil pipeline P1
In one embodiment, with reference to Fig. 1, cooler 3 is water cooler.
In one embodiment, with reference to Fig. 1, the first condensation filter outlet 42 of condensation filter 4 is communicated in outside via oil pipeline P2.
In one embodiment, with reference to Fig. 1, heat exchanger 5 also can have: the second heat exchanger entrance 53, is communicated in the first compressor outlet 22; And second heat exchanger exit 54, be communicated in cooler entrance 31.Wherein, the unstripped gas after pressurization exports via the first compressor outlet 22 points of two parts; The part of unstripped gas after the pressurization exported via the first cooler entrance 31 enter cooling in cooler 3, cooled unstripped gas via cooler outlet 32 and condensation filter inlet 41 enter condensation filter 4 filter, filter after unstripped gas enter heat exchanger 5 via the second condensation filter outlet 43 and First Heat Exchanger entrance 51; Another part of unstripped gas after the pressurization exported enters heat exchanger 5 via the second heat exchanger entrance 53, to enter the unstripped gas after the filtration of heat exchanger 5 carry out heat exchange with via the second condense filter outlet 43 and First Heat Exchanger entrance 51, absorb heat to make the unstripped gas after filtration and to heat up and the activated carbon adsorption bed 6 entering downstream afterwards processes, and described another part heat release cooling of unstripped gas after the pressurization exported, then enter cooler 3 via the second heat exchanger exit 54 and cooler entrance 31.It should be noted that at this, due to the said process of described another part of the unstripped gas after the pressurization that exports, make the unstripped gas finally entering cooler 3 be the mixing of above-mentioned two parts.In this embodiment, utilize and export the unstripped gas after pressurization via the first compressor outlet 22 points of two parts, said process is adopted to make this two parts unstripped gas carry out heat exchange afterwards, the heat of carbon dioxide flooding extraction air carbon dioxide separation and recovery system inherence, oil field is fully used, simplify technique, reduce cost.
In one embodiment, with reference to Fig. 1, membrane separation device 10 can comprise: one-level membrane separator 101, the 3rd compressor 102 and secondary membrane separator 103.One-level membrane separator 101 has: one-level film 1011; One-level membrane separator entrance 1012, is communicated in the second compressor outlet 92; First one-level membrane separator outlet 1013; And second one-level membrane separator outlet 1014.3rd compressor 102 has: the 3rd suction port of compressor 1021, is communicated in the second one-level membrane separator outlet 1014; And the 3rd compressor outlet 1022.Secondary membrane separator 103 has: secondary film 1031; Secondary membrane separator entrance 1032, is communicated in the 3rd compressor outlet 1022; First secondary membrane separator outlet 1033, is communicated in one-level membrane separator entrance 1012; And second secondary membrane separator outlet 1034.Wherein, unstripped gas after the second compressor 9 pressurizes enters one-level membrane separator 101 via the second compressor outlet 92, first one-level membrane separator entrance 1012, be separated through one-level film 1011, be that one-level retains gas by the unstripped gas that one-level film 1011 retains, one-level retains gas and is gas product that qualified carbon dioxide purity is low and exports 1013 by the first one-level membrane separator to export, the unstripped gas of infiltration one-level film 1011 enters the 3rd compressor 102 as one-level infiltration gas via the second one-level membrane separator outlet the 1014, the 3rd suction port of compressor 1021, and pressurizes in the 3rd compressor 102, one-level infiltration gas after the 3rd compressor 102 pressurizes is via the 3rd compressor outlet 1022, secondary membrane separator entrance 1032 enters secondary membrane separator 103, be separated through secondary film 1031, secondary infiltration gas is become after one-level infiltration impervious secondary film 1031, secondary infiltration gas is gas product that qualified carbon dioxide purity is high and exports via the second one-level membrane separator outlet 1014, second entrapment gas is become after one-level infiltration gas is retained by secondary film 1031, second entrapment gas is via the first secondary membrane separator outlet 1033, second one-level membrane separator 101 entrance again enters one-level membrane separator 101 and carries out thin film separation.
Finally provide the test case based on certain oil field.
Certain oil field one block No. 1 well and No. 3 wells are tested, accounts the treatment effect of carbon dioxide flooding extraction air carbon dioxide separation and recovery system.
With reference to Fig. 1, accountability system is to the treatment effect of No. 1 well extraction gas, and mass balance result is as shown in table 1:
Certain oilfield of table 1 No. 1 well (91%CO 2content) mass balance table
As shown in Table 1, extraction throughput 2000Nm 3/ sky, CO 2during content 91%, purified gas flow 220Nm 3/ sky, CO 2content 28.21%.
With reference to Fig. 1, accountability system is to the treatment effect of No. 3 well extraction gas, and mass balance result is as shown in table 2:
Certain oilfield of table 2 No. 3 well (86%CO 2content) mass balance table
As shown in Table 2, extraction throughput 2000Nm 3/ sky, CO 2during content 86%, purified gas flow 357.6Nm 3/ sky, CO 2content 34.35%.

Claims (7)

1. an oil field carbon dioxide flooding extraction air carbon dioxide separation and recovery system, is characterized in that, comprising:
Oil-gas Separation tower (1), has:
Oil-gas Separation tower tower body (11), inside has Oil-gas Separation Ta Ta chamber (111);
Oil-gas Separation tower entrance (12), is arranged at Oil-gas Separation tower tower body (11), for passing in Oil-gas Separation Ta Ta chamber (111) for the oil field carbon dioxide flooding extraction gas from gas well as unstripped gas;
First Oil-gas Separation tower outlet (13), is arranged at the bottom of Oil-gas Separation tower tower body (11), is communicated in Oil-gas Separation Ta Ta chamber (111) and is communicated in outside; And
Second Oil-gas Separation tower outlet (14), is arranged at the top of Oil-gas Separation tower tower body (11) and is communicated in Oil-gas Separation Ta Ta chamber (111);
First compressor (2), has:
First suction port of compressor (21), is communicated in the second Oil-gas Separation tower outlet (14); And
First compressor outlet (22);
Cooler (3), has:
Cooler entrance (31), is communicated in the first compressor outlet (22); And
Cooler outlet (32);
Condensation filter (4), has:
Condensation filter inlet (41), is communicated in cooler outlet (32);
First condensation filter outlet (42), is communicated in outside; And
Second condensation filter outlet (43);
Heat exchanger (5), has:
First Heat Exchanger entrance (51), is communicated in the second condensation filter outlet (43);
First Heat Exchanger outlet (52);
Second heat exchanger entrance (53), is communicated in the first compressor outlet (22); And
Second heat exchanger exit (54), is communicated in cooler entrance (31);
Activated carbon adsorption bed (6), has:
Activated carbon adsorption bed entrance (61), is communicated in First Heat Exchanger outlet (52); And
Activated carbon adsorption bed outlet (62);
Particulate filter (7), has:
Particulate filter entrance (71), is communicated in activated carbon adsorption bed outlet (62); And
Particulate filter outlet (72);
Heater (8), has:
Calorifier inlets (81), is communicated in particulate filter outlet (72); And
Heater outlet (82);
Second compressor (9), has:
Second suction port of compressor (91), is communicated in heater outlet (82); And
Second compressor outlet (92); And
Membrane separation device (10), is communicated in the second compressor outlet (92) and has film;
Wherein,
Unstripped gas enters Oil-gas Separation Ta Ta chamber (111) via Oil-gas Separation tower entrance (12), and in Oil-gas Separation tower (1), the liquid crude oil of unstripped gas entrained with is separated and is collected in Oil-gas Separation Ta Ta chamber (111);
Unstripped gas after separation exports (14) via the second Oil-gas Separation tower and the first suction port of compressor (21) enter the first compressor (2), and pressurizes in the first compressor (2);
Unstripped gas after pressurization enters cooler (3) via the first compressor outlet (22) and the first cooler entrance (31), and cooled in cooler (3), to be made entraining liquid composition in unstripped gas by cooling;
Cooled unstripped gas enters condensation filter (4) via cooler outlet (32) and condensation filter inlet (41) and filters, the liquid parts condensation that unstripped gas is carried secretly in condensation filter (4), filter and be collected in the filter (4) that condenses, the unstripped gas after filtration enters heat exchanger (5) and carries out heat exchange via the second condense filter outlet (43) and First Heat Exchanger entrance (51) and be preheated;
Unstripped gas after preheating enters activated carbon adsorption bed (6) via First Heat Exchanger outlet (52) and activated carbon adsorption bed entrance (61), and the C5+ hydrocarbon contained by unstripped gas in activated carbon adsorption bed (6) removes;
The unstripped gas removing C5+ hydrocarbon enters particulate filter (7), to remove the particle of the solid activated carbon that unstripped gas contains via activated carbon adsorption bed outlet (62) and particulate filter entrance (71);
Unstripped gas after particle filtering enters heater (8) via particulate filter outlet (72) and calorifier inlets (81), and heat in heater (8), ensure that the temperature of unstripped gas is all the time higher than hydrocarbon dew point, prevent the temperature of unstripped gas from reducing and occurring that heavy hydrocarbon condensation is separated out;
Unstripped gas after heating enters the second compressor (9) via heater outlet (82) and the second suction port of compressor (91), and pressurizes in the second compressor (9);
Unstripped gas after the second compressor (9) pressurization enters membrane separation device (10), gas and infiltration gas is retained to obtain after the film process of membrane separation device (10), retaining gas is the gas product that qualified carbon dioxide purity is low, and infiltration gas is the gas product that qualified carbon dioxide purity is high.
2. oil field carbon dioxide flooding extraction air carbon dioxide separation and recovery system according to claim 1, it is characterized in that, Oil-gas Separation tower (1) is provided with filter screen (15), and filter screen (15) is isolated by filtering the liquid crude oil carried secretly by unstripped gas and is collected in Oil-gas Separation Ta Ta chamber (111).
3. oil field carbon dioxide flooding extraction air carbon dioxide separation and recovery system according to claim 1, is characterized in that, the first Oil-gas Separation tower outlet (13) is communicated in outside via oil pipeline (P1).
4. oil field carbon dioxide flooding extraction air carbon dioxide separation and recovery system according to claim 1, it is characterized in that, cooler (3) is water cooler.
5. oil field carbon dioxide flooding extraction air carbon dioxide separation and recovery system according to claim 1, it is characterized in that, the first condensation filter outlet (42) of condensation filter (4) is communicated in outside via oil pipeline (P2).
6. oil field carbon dioxide flooding extraction air carbon dioxide separation and recovery system according to claim 1, is characterized in that,
Heat exchanger (5) also has:
Second heat exchanger entrance (53), is communicated in the first compressor outlet (22); And
Second heat exchanger exit (54), is communicated in cooler entrance (31);
Wherein,
Unstripped gas after pressurization exports via the first compressor outlet (22) point two parts;
The part of unstripped gas after the pressurization exported via the first cooler entrance (31) enter cooling in cooler (3), cooled unstripped gas via cooler outlet (32) and condensation filter inlet (41) enter condensation filter (4) filter, filter after unstripped gas enter heat exchanger (5) via the second condensation filter outlet (43) and First Heat Exchanger entrance (51);
Another part of unstripped gas after the pressurization exported enters heat exchanger (5) via the second heat exchanger entrance (53), to enter the unstripped gas after the filtration of heat exchanger (5) carry out heat exchange with via the second condense filter outlet (43) and First Heat Exchanger entrance (51), absorb heat to make the unstripped gas after filtration and to heat up and the activated carbon adsorption bed (6) entering downstream afterwards processes, and described another part heat release cooling of unstripped gas after the pressurization exported, then cooler (3) is entered via the second heat exchanger exit (54) and cooler entrance (31).
7. oil field carbon dioxide flooding extraction air carbon dioxide separation and recovery system according to claim 1, it is characterized in that, membrane separation device (10) comprising:
One-level membrane separator (101), has:
One-level is with film (1011);
One-level membrane separator entrance (1012), is communicated in the second compressor outlet (92);
First one-level membrane separator outlet (1013); And
Second one-level membrane separator outlet (1014);
3rd compressor (102), has:
3rd suction port of compressor (1021), is communicated in the second one-level membrane separator outlet (1014); And
3rd compressor outlet (1022);
Secondary membrane separator (103), has:
Secondary is with film (1031);
Secondary membrane separator entrance (1032), is communicated in the 3rd compressor outlet (1022);
First secondary membrane separator outlet (1033), is communicated in one-level membrane separator entrance (1012); And
Second secondary membrane separator outlet (1034);
Wherein, unstripped gas after the second compressor (9) pressurization enters one-level membrane separator (101) via the second compressor outlet (92), the first one-level membrane separator entrance (1012), be separated through one-level film (1011), be that one-level retains gas by the unstripped gas that one-level film (1011) retains, one-level retains gas and is gas product that qualified carbon dioxide purity is low and exports (1013) by the first one-level membrane separator to export;
As one-level infiltration, gas exports (1014) via the second one-level membrane separator to the unstripped gas of infiltration one-level film (1011), the 3rd suction port of compressor (1021) enters the 3rd compressor (102), and pressurizes in the 3rd compressor (102);
One-level infiltration gas after the 3rd compressor (102) pressurization is via the 3rd compressor outlet (1022), secondary membrane separator entrance (1032) enters secondary membrane separator (103), be separated through secondary film (1031), secondary infiltration gas is become after one-level infiltration impervious secondary film (1031), secondary infiltration gas is gas product that qualified carbon dioxide purity is high and exports via the second one-level membrane separator outlet (1014), second entrapment gas is become after one-level infiltration gas is retained by secondary film (1031), second entrapment gas exports (1033) via the first secondary membrane separator, second one-level membrane separator (101) entrance again enters one-level membrane separator (101) and carries out thin film separation.
CN201510226107.2A 2015-05-06 2015-05-06 Oil field carbon dioxide flooding produced gas carbon dioxide separation recovery system Active CN104857811B (en)

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CN110343556A (en) * 2019-07-26 2019-10-18 中石化石油工程技术服务有限公司 Skid-mounted carbon dioxide flooding returns exhaust gas desulfurization dehydration and carbon dioxide recovery system, in accordance
CN111116295A (en) * 2019-12-12 2020-05-08 中国石油化工股份有限公司 CO (carbon monoxide)2Device and method for efficient membrane separation and purification of flooding produced gas
CN112480957A (en) * 2020-10-23 2021-03-12 西安长庆科技工程有限责任公司 Micro-positive pressure crude oil stabilizing device and process method for oil field
WO2021097791A1 (en) * 2019-11-22 2021-05-27 杰瑞(天津)石油工程技术有限公司 Wellhead gas purification system
CN113356808A (en) * 2021-05-24 2021-09-07 中国石油化工集团有限公司 Gas-phase direct injection process for wellhead of carbon dioxide gas well
CN113713554A (en) * 2021-08-18 2021-11-30 大连海奥膜技术有限公司 Process and equipment for recovering light hydrocarbon and carbon dioxide accompanied by oil field flooding gas by membrane method
CN113828103A (en) * 2021-08-19 2021-12-24 大连海奥膜技术有限公司 Process and equipment for recovering light hydrocarbon and carbon dioxide associated with oil field flooding gas
CN114059992A (en) * 2021-10-27 2022-02-18 山东德仕石油装备有限公司 Carbon dioxide injection huff and puff oil extraction ground device for oil field
CN116510471A (en) * 2023-06-02 2023-08-01 东营市通海盈信新能源有限公司 Oilfield associated gas decarburization system

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Publication number Priority date Publication date Assignee Title
CN110343556A (en) * 2019-07-26 2019-10-18 中石化石油工程技术服务有限公司 Skid-mounted carbon dioxide flooding returns exhaust gas desulfurization dehydration and carbon dioxide recovery system, in accordance
WO2021097791A1 (en) * 2019-11-22 2021-05-27 杰瑞(天津)石油工程技术有限公司 Wellhead gas purification system
CN111116295A (en) * 2019-12-12 2020-05-08 中国石油化工股份有限公司 CO (carbon monoxide)2Device and method for efficient membrane separation and purification of flooding produced gas
CN112480957A (en) * 2020-10-23 2021-03-12 西安长庆科技工程有限责任公司 Micro-positive pressure crude oil stabilizing device and process method for oil field
CN113356808A (en) * 2021-05-24 2021-09-07 中国石油化工集团有限公司 Gas-phase direct injection process for wellhead of carbon dioxide gas well
CN113713554A (en) * 2021-08-18 2021-11-30 大连海奥膜技术有限公司 Process and equipment for recovering light hydrocarbon and carbon dioxide accompanied by oil field flooding gas by membrane method
CN113828103A (en) * 2021-08-19 2021-12-24 大连海奥膜技术有限公司 Process and equipment for recovering light hydrocarbon and carbon dioxide associated with oil field flooding gas
CN113828103B (en) * 2021-08-19 2023-11-10 大连海奥膜技术有限公司 Process and equipment for recycling light hydrocarbon and carbon dioxide in oilfield flooding companion gas
CN114059992A (en) * 2021-10-27 2022-02-18 山东德仕石油装备有限公司 Carbon dioxide injection huff and puff oil extraction ground device for oil field
CN114059992B (en) * 2021-10-27 2024-04-02 德仕能源科技集团股份有限公司 Oil field carbon dioxide injection huff-puff oil extraction ground device
CN116510471A (en) * 2023-06-02 2023-08-01 东营市通海盈信新能源有限公司 Oilfield associated gas decarburization system
CN116510471B (en) * 2023-06-02 2024-03-29 东营市通海盈信新能源有限公司 Oilfield associated gas decarburization system

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