CN107288600A - Tail gas re-injection and the device and technique of UTILIZATION OF VESIDUAL HEAT IN composite flooding oilfield stimulation - Google Patents
Tail gas re-injection and the device and technique of UTILIZATION OF VESIDUAL HEAT IN composite flooding oilfield stimulation Download PDFInfo
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- CN107288600A CN107288600A CN201710665243.0A CN201710665243A CN107288600A CN 107288600 A CN107288600 A CN 107288600A CN 201710665243 A CN201710665243 A CN 201710665243A CN 107288600 A CN107288600 A CN 107288600A
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- valves
- outlet
- tail gas
- injection
- threeway
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/166—Injecting a gaseous medium; Injecting a gaseous medium and a liquid medium
- E21B43/168—Injecting a gaseous medium
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/20—Displacing by water
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
Abstract
The invention discloses a kind of tail gas re-injection and the device and technique of UTILIZATION OF VESIDUAL HEAT IN composite flooding oilfield stimulation, it is related to oil extraction in oil field technical field, the technical problem of solution is to provide a kind of intensive utilization for realizing resource, and the device and technique of free of contamination tail gas re-injection and UTILIZATION OF VESIDUAL HEAT IN composite flooding oilfield stimulation.The technical solution adopted by the present invention is：Tail gas re-injection and the device of UTILIZATION OF VESIDUAL HEAT IN composite flooding oilfield stimulation, including generator, heating furnace, gas compressor and high pressure water-injection pump, engine, the waste heat from tail gas of heating furnace preheat water filling, then heated stove heat, hot water perfusion is carried out again, realizes that heat energy makes full use of；The valve of adjusting apparatus, can be achieved cold water perfusion；Engine, the tail gas of heating furnace carry out closed cleaning by the first tail gas purifier and the second tail gas purifier respectively, irrigated again by gas compressor pressure-raising, realize supercharging gas injection, it is ensured that all tail gas is all reclaimed, realize composite flooding volume increase and environment friendly and pollution-free, make full use of resource.
Description
Technical field
The present invention relates to oil extraction in oil field technical field, especially a kind of utilization natural gas engine, the waste heat of heating furnace are incited somebody to action
Water filling preheating after carry out heat energy water filling, and by its tail gas it is closed clean after pressure-raising irrigate a set of composite flooding oilfield stimulation
Device and technique.
Background technology
After the input exploitation of oil field, with the growth of oil recovery recovery time, the energy of oil reservoir in itself will be constantly consumed, and be caused
Formation pressure is set constantly to decline, underground crude oil largely deaerates, viscosity increase, oil well output greatly reduces, or even meeting stop-spraying is stopped
Production, causes underground to remain a large amount of dead oil exploitations and does not come out.In order to make up oil extraction go out it is rear caused by underground it is in debt, keep or
Formation pressure is improved, oil field stable high yield is realized, and obtain higher recovery ratio, it is necessary to cold water is carried out to oil field or injection is filled
Note.
Oil field is irrigated at present boiler heating is coordinated using high pressure water-injection pump, the flue gas of discharge can take away substantial amounts of heat
Amount, and air is polluted, the intensive utilization of resource is not carried out, and cause environmental pollution.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of intensive utilization for realizing resource, and free of contamination tail gas is returned
The device of note and UTILIZATION OF VESIDUAL HEAT IN composite flooding oilfield stimulation.
The technical solution adopted for the present invention to solve the technical problems is：Tail gas re-injection and UTILIZATION OF VESIDUAL HEAT IN composite flooding oil field
The device of volume increase, including generator, heating furnace, gas compressor and high pressure water-injection pump；The offgas outlet connection the of generator
Water channel is set in one heat exchanger, the first heat exchanger, and the gas vent of the first heat exchanger is connected to the first tail gas purifier, heating furnace
Gas vent connect the second heat exchanger, water channel is set in the second heat exchanger, and the gas vent of the second heat exchanger is connected to second
Tail gas purifier, the outlet of the first tail gas purifier and the second tail gas purifier is respectively connecting to the gas compressor, gas
The outlet conduit end of compressor sets the joint that can be connected with the choke valve of production tree；
The entrance connection water pot of high pressure water-injection pump, the outlet connection 2# valves of high pressure water-injection pump, the outlet of 2# valves is set
3# valves and 7# valves are set respectively on threeway, two branch pipes of threeway, and the end of 7# valve export pipelines is set can be with oil recovery
The connected joint of the choke valve of tree；
The outlet of 3# valves sets and sets 4# valves and 5# valves respectively on threeway, two branch pipes of threeway, 4# valves
Outlet is connected in the heating furnace；5# valve exports set threeway, set respectively on two branch pipes of threeway 11# valves and
12# valves, the outlet of 11# valves is connected to the water channel entrance of the second heat exchanger, and the water channel outlet of the second heat exchanger is connected to institute
State in heating furnace；The outlet of 12# valves is connected to the water channel entrance of the first heat exchanger, and the water channel outlet of the first heat exchanger is connected to
In the heating furnace；The end of the outlet conduit of heating furnace sets the joint that can be connected with the choke valve of production tree.
It is further：14# is set respectively on the outlet conduit of first tail gas purifier and the second tail gas purifier
Valve and 13# valves, the outlet of 14# valves and 13# valves is then connected to gas compressor, gas compression after converging by threeway
The outlet of machine sets and sets valve respectively on branch pipe, branch pipe, and the end of branch pipe sets can be connected with the choke valve of production tree respectively
Joint.
It is further：The water pot is overhead water pot, and 1# valves are set between overhead water pot and high pressure water-injection pump.
It is further：10# valves, the water channel of the second heat exchanger are set on the water channel export pipeline of first heat exchanger
Set on export pipeline after 9# valves, the outlet of 9# valves and the outlet of 10# valves converged by threeway, then 6# valves be set,
After the outlet of 6# valves and the outlet of 4# valves are converged by threeway, it is then connected in the heating furnace.
It is further：8# valves, the outlet of 7# valves and going out for 8# valves are set on the outlet conduit of the heating furnace
Mouth is converged by threeway, then sets the joint that can be connected with the choke valve of production tree.
Specifically, the generator is natural gas generator.
It is further：Set respectively on the outlet conduit connection threeway of the gas compressor, two branch pipes of threeway
The end of 15# valves and 16# valves, 15# valves and 16# valves sets the joint that can be connected with the choke valve of production tree respectively；
The outlet of 7# valves and the outlet of 8# valves reconnect threeway, two branch of latter threeway after converging by threeway
17# valves and 18# valves be set respectively on pipe, and the end of 17# valves and 18# valves sets choke valve that can be with production tree respectively
Connected joint.
The present invention also provides the technique of a kind of tail gas re-injection and UTILIZATION OF VESIDUAL HEAT IN composite flooding oilfield stimulation, by above-mentioned any
The device driving oilfield stimulation of a kind of tail gas re-injection and UTILIZATION OF VESIDUAL HEAT IN composite flooding oilfield stimulation, including cold water perfusion, hot water are filled
Note and supercharging gas injection, wherein：
Cold water is irrigated：The joint of end of 7# valve export pipelines is connected with the choke valve of production tree, 2# valves are opened
Door, 7# valves, close 3# valves, then carry out cold water perfusion；
Hot water is irrigated：7# valves are closed, by 2# valves, 3# valves, 4# valves, 5# valves, 11# valves, 12# valves
Open, after water filling is heated by the first heat exchanger and the second heat exchanger, entering back into heating furnace increases heat energy, finally by adopting
The choke valve of oil tree carries out hot water perfusion；
Being pressurized gas injection is：The joint of outlet conduit end of gas compressor is connected with the choke valve of production tree, passed through
The choke valve of production tree carries out supercharging gas injection operation.
The beneficial effects of the invention are as follows：In the device and technique of tail gas re-injection and UTILIZATION OF VESIDUAL HEAT IN composite flooding oilfield stimulation,
Generator provides electric energy for whole device, after engine, the waste heat from tail gas of heating furnace preheat water filling, then heated stove heat,
Heat energy water injection work is finally carried out, making full use of for heat energy is realized；The valve of adjusting apparatus, can also realize that cold water is irrigated；Start
Machine, the tail gas of heating furnace carry out closed cleaning by the first tail gas purifier and the second tail gas purifier respectively, then pass through gas
Gas compressor pressure-raising is irrigated, and realizes supercharging gas injection；Ensure that all tail gas are all reclaimed and enter work flow, both accomplished water filling
Gas injection composite flooding increases production and environment friendly and pollution-free, makes full use of resource.
Brief description of the drawings
Fig. 1 is the device and the schematic diagram of technique of tail gas re-injection of the present invention and UTILIZATION OF VESIDUAL HEAT IN composite flooding oilfield stimulation；
Parts, position and numbering in figure：Generator 1, the first heat exchanger 2, the first tail gas purifier 3, gas compressor
4th, heating furnace 5, the second heat exchanger 6, the second tail gas purifier 7, high pressure water-injection pump 8, water pot 9, production tree 10, choke valve 11；1#
Valve V-1,2# valve V-2,3# valve V-3,4# valve V-4,5# valve V-5,6# valve V-6,7# valve V-7,8# valve V-
8th, 9# valves V-9,10# valves V-10,11# valves V-11,12# valves V-12,13# valve V-13,14# valve V-14,15# valves
Door V-15,16# valve V-16,17# valve V-17,18# valve V-18.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
As shown in figure 1, the device of tail gas re-injection of the present invention and UTILIZATION OF VESIDUAL HEAT IN composite flooding oilfield stimulation, including generator 1,
Heating furnace 5, gas compressor 4 and high pressure water-injection pump 8, generator 1 are natural gas generator, and generator can change natural gas
For electric energy, electric energy is provided for whole device.The offgas outlet of generator 1 is connected to be set in the first heat exchanger 2, the first heat exchanger 2
Water channel, the gas vent of the first heat exchanger 2 is connected to the first tail gas purifier 3, and the first tail gas purifier 3 is used for generator 1
The tail gas of generation carries out closed cleaning.
The burning natural gas of heating furnace 5, the gas vent of heating furnace 5 is connected to be set in the second heat exchanger 6, the second heat exchanger 6
Water channel, the gas vent of the second heat exchanger 6 is connected to the second tail gas purifier 7, and the second tail gas purifier 7 is used for heating furnace 5
The tail gas of generation carries out closed cleaning.The outlet of first tail gas purifier 3 and the outlet of the second tail gas purifier 7 are connected respectively
To gas compressor 4, the outlet conduit end of gas compressor 4 sets the joint that can be connected with the choke valve 11 of production tree 10.
Gas compressor 4 is by the tail gas enhancing perfusion after cleaning, to realize supercharging gas injection.To avoid the first tail gas from cleaning
The outlet conduit of the outlet conduit of device 3 and the second tail gas purifier 7 may be interfered, the outlet of the first tail gas purifier 3
Set respectively on the outlet conduit of road and the second tail gas purifier 7 14# valve V-14 and 13# valve V-13,14# valve V-14 and
13# valves V-13 outlet is then connected to gas compressor 4 after converging by threeway.The outlet of gas compressor 4 sets branch pipe,
Valve is set respectively on branch pipe, and the end of branch pipe sets the joint that can be connected with the choke valve 11 of production tree 10 respectively.
As shown in figure 1, there is two well heads, the outlet conduit of gas compressor 4 is connected to be divided on threeway, two branch pipes of threeway
She Zhi set respectively can be with oil recovery 15# valve V-15 and 16# valve V-16,15# valve V-15 and 16# valves V-16 end
Two well heads are carried out supercharging gas injection by the connected joint of the choke valve 11 of tree 10 respectively.
High pressure water-injection pump 8 is the power core of whole device, and power, high pressure water-injection pump are provided for the perfusion of underground water-injection pressure-raising
8 entrance connection water pot 9, water pot 9 is overhead water pot, is easy to the water filling of high pressure water-injection pump 8, overhead water pot and high pressure water-injection pump 8
Between 1# valves V-1 is set.Outlet connection 2# valves V-2, the 2# valve V-2 of high pressure water-injection pump 8 outlet sets threeway, threeway
Two branch pipes on set respectively 3# valve V-3 and 7# valve V-7,7# valve V-7 outlet conduits end set can be with oil recovery
The connected joint of the choke valve 11 of tree 10.By the joint of the end of 7# valve V-7 outlet conduits and the choke valve 11 of production tree 10
It is connected, opens 1# valve V-1,2# valve V-2,7# valve V-7, close 3# valves V-3, you can carries out cold water perfusion.
3# valves V-3 outlet sets and sets 4# valve V-4 and 5# valve V-5 respectively on threeway, two branch pipes of threeway,
4# valves V-4 outlet is connected to the heating furnace 5.5# valves V-5 outlets set and set respectively on threeway, two branch pipes of threeway
The outlet for putting 11# valve V-11 and 12# valve V-12,11# valves V-11 is connected to the water channel entrance of the second heat exchanger 6, second
9# valves V-9 is set on the water channel export pipeline of heat exchanger 6.12# valves V-12 outlet is connected to the water channel of the first heat exchanger 2
10# valves V-10 is set on entrance, the water channel export pipeline of the first heat exchanger 2.9# valves V-9 outlet and 10# valves V-10
Outlet converged by threeway after, then set 6# valves V-6,6# valve V-6 outlet and 4# valves V-4 outlet to pass through threeway
After converging, it is then connected in the heating furnace 5.8# valves V-8,7# valve V-7 outlet is set on the outlet conduit of heating furnace 5
Outlet with 8# valves V-8 is converged by threeway, then sets the joint that can be connected with the choke valve 11 of production tree 10.
Such as Fig. 1, connect again after thering are two well heads, 7# valves V-7 outlet and 8# valves V-8 outlet to converge by threeway
Connect set respectively on threeway, two branch pipes of latter threeway 17# valve V-17 and 18# valve V-18,17# valve V-17 and
18# valves V-18 end sets the joint that can be connected with the choke valve 11 of production tree 10 respectively.
Tail gas re-injection of the present invention and the technique of UTILIZATION OF VESIDUAL HEAT IN composite flooding oilfield stimulation, are driven by the device of above-described embodiment
Two well heads are carried out operation by dynamic oilfield stimulation, including cold water perfusion, hot water perfusion and supercharging gas injection, wherein：
Cold water is irrigated：By the joint of 17# valve V-17 and 18# valves V-18 end respectively with two production trees 10
Choke valve 11 is connected, and opens 1# valves, 2# valve V-2,7# valve V-7, closes 3# valve V-3,8# valve V-8, opens 17# valves
Door V-17 or 18# valves V-18, you can cold water perfusion is carried out to one well head of correspondence.
Hot water perfusion is divided into following three kinds of situations：
The first situation, passes through heating furnace, energy efficiency：5# valve V-5,6# valve V-6,7# valve V-7 are closed, are opened
1# valve V-1,2# valve V-2,3# valve V-3,4# valve V-4,8# valve V-8, water filling increases heat energy by heating furnace 5, most
Hot water perfusion is carried out to a corresponding well head by 17# valves V-17 or 18# valve V-18 afterwards.
Second case, the heat exchange of generator tail gas waste heat, energy efficiency：Close 4# valve V-4,7# valve V-7,9# valves
V-9,11# valve V-11, open 1# valve V-1,2# valve V-2,3# valve V-3,5# valve V-5,6# valve V-6,10# valves
V-10,12# valve V-12, water filling carry out energy-conservation heat exchange by the first heat exchanger 2, and the hot water after heating enters back into heating furnace
5 heating, hot water perfusion is carried out finally by 17# valves V-17 or 18# valve V-18 to a corresponding well head.
The third situation, heating furnace waste heat from tail gas carries out hot water perfusion：Close 4# valve V-4,7# valve V-7,10# valves
Door V-10,12# valve V-12, opens 1# valve V-1,2# valve V-2,3# valve V-3,5# valve V-5,6# valve V-6,9# valves
Door V-9,11# valve V-11, water filling carries out energy-conservation heat exchange by the second heat exchanger 6, and the hot water after heating enters back into heating
Stove 5 is heated, and hot water perfusion is carried out to a corresponding well head finally by 17# valves V-17 or 18# valve V-18.
Being pressurized gas injection is：The outlet conduit of gas compressor 4 is set and set respectively on threeway, two branch pipes of threeway
15# valve V-15 and 16# valve V-16, by 15# valve V-15 and 16# valves V-16 outlet ends respectively with production tree 10
Choke valve 11 is connected, then carries out supercharging gas injection operation to a corresponding well head respectively.
Claims (8)
1. tail gas re-injection and the device of UTILIZATION OF VESIDUAL HEAT IN composite flooding oilfield stimulation, it is characterised in that：Including generator (1), heating
Stove (5), gas compressor (4) and high pressure water-injection pump (8)；The offgas outlet of generator (1) connects the first heat exchanger (2), the
Water channel is set in one heat exchanger (2), and the gas vent of the first heat exchanger (2) is connected to the first tail gas purifier (3), heating furnace
(5) gas vent, which is connected, sets water channel in the second heat exchanger (6), the second heat exchanger (6), the gas of the second heat exchanger (6) goes out
Mouth is connected to the second tail gas purifier (7), and the outlet of the first tail gas purifier (3) and the second tail gas purifier (7) is connected respectively
To the gas compressor (4), the outlet conduit end of gas compressor (4) sets choke valve (11) that can be with production tree (10)
Connected joint；
The entrance connection water pot (9) of high pressure water-injection pump (8), the outlet connection 2# valves (V-2) of high pressure water-injection pump (8), 2# valves
(V-2) outlet sets and sets 3# valves (V-3) and 7# valves (V-7), 7# valves respectively on threeway, two branch pipes of threeway
(V-7) end of outlet conduit sets the joint that can be connected with the choke valve (11) of production tree (10)；
The outlet of 3# valves (V-3) sets and sets 4# valves (V-4) and 5# valves (V- respectively on threeway, two branch pipes of threeway
5), the outlet of 4# valves (V-4) is connected in the heating furnace (5)；5# valves (V-5) outlet sets threeway, two of threeway
11# valves (V-11) and 12# valves (V-12) are set respectively on branch pipe, and the outlet of 11# valves (V-11) is connected to the second heat and changed
The water channel entrance of device (6), the water channel outlet of the second heat exchanger (6) is connected in the heating furnace (5)；12# valves (V-12)
Outlet is connected to the water channel entrance of the first heat exchanger (2), and the water channel outlet of the first heat exchanger (2) is connected to the heating furnace (5)
It is interior；The end of the outlet conduit of heating furnace (5) sets the joint that can be connected with the choke valve (11) of production tree (10).
2. tail gas re-injection as claimed in claim 1 and the device of UTILIZATION OF VESIDUAL HEAT IN composite flooding oilfield stimulation, it is characterised in that：Institute
14# valves (V-14) and 13# are set respectively on the outlet conduit for stating the first tail gas purifier (3) and the second tail gas purifier (7)
Valve (V-13), the outlet of 14# valves (V-14) and 13# valves (V-13) is then connected to gas compressor after converging by threeway
(4), the outlet of gas compressor (4) sets valve respectively by setting on branch pipe, branch pipe, and the end of branch pipe is set respectively can be with
The connected joint of the choke valve (11) of production tree (10).
3. tail gas re-injection as claimed in claim 1 and the device of UTILIZATION OF VESIDUAL HEAT IN composite flooding oilfield stimulation, it is characterised in that：Institute
Water pot (9) is stated for overhead water pot, 1# valves (V-1) are set between overhead water pot and high pressure water-injection pump (8).
4. tail gas re-injection as claimed in claim 1 and the device of UTILIZATION OF VESIDUAL HEAT IN composite flooding oilfield stimulation, it is characterised in that：Institute
State and 10# valves (V-10), the water channel export pipeline of the second heat exchanger (6) are set on the water channel export pipeline of the first heat exchanger (2)
After upper setting 9# valves (V-9), the outlet of 9# valves (V-9) and the outlet of 10# valves (V-10) are converged by threeway, then set
After 6# valves (V-6), the outlet of 6# valves (V-6) and the outlet of 4# valves (V-4) are converged by threeway, described add is then connected to
In hot stove (5).
5. tail gas re-injection as claimed in claim 1 and the device of UTILIZATION OF VESIDUAL HEAT IN composite flooding oilfield stimulation, it is characterised in that：Institute
State and 8# valves (V-8) are set on the outlet conduit of heating furnace (5), the outlet of 7# valves (V-7) and the outlet of 8# valves (V-8) are logical
Cross threeway to converge, then the joint that can be connected with the choke valve (11) of production tree (10) is set.
6. tail gas re-injection as claimed in claim 1 and the device of UTILIZATION OF VESIDUAL HEAT IN composite flooding oilfield stimulation, it is characterised in that：Institute
Generator (1) is stated for natural gas generator.
7. tail gas re-injection as claimed in claim 1 and the device of UTILIZATION OF VESIDUAL HEAT IN composite flooding oilfield stimulation, it is characterised in that：Institute
State and 15# valves (V-15) and 16# are set respectively on the outlet conduit connection threeway of gas compressor (4), two branch pipes of threeway
The end of valve (V-16), 15# valves (V-15) and 16# valves (V-16) sets choke valve that can be with production tree (10) respectively
(11) connected joint；
The outlet of 7# valves (V-7) and the outlet of 8# valves (V-8) reconnect threeway after converging by threeway, latter threeway
17# valves (V-17) and 18# valves (V-18) be set respectively on two branch pipes, 17# valves (V-17) and 18# valves (V-18)
End sets the joint that can be connected with the choke valve (11) of production tree (10) respectively.
8. tail gas re-injection and the technique of UTILIZATION OF VESIDUAL HEAT IN composite flooding oilfield stimulation, it is characterised in that：By the claims 1 to
The device driving oilfield stimulation of tail gas re-injection described in 7 any claims and UTILIZATION OF VESIDUAL HEAT IN composite flooding oilfield stimulation, including it is cold
Water perfusion, hot water perfusion and supercharging gas injection, wherein：
Cold water is irrigated：The joint of the end of 7# valves (V-7) outlet conduit is connected with the choke valve (11) of production tree (10),
2# valves (V-2), 7# valves (V-7) are opened, 3# valves (V-3) are closed, then carry out cold water perfusion；
Hot water is irrigated：7# valves (V-7) are closed, by 2# valves (V-2), 3# valves (V-3), 4# valves (V-4), 5# valves
(V-5), 11# valves (V-11), 12# valves (V-12) are opened, and water filling is entered by the first heat exchanger (2) and the second heat exchanger (6)
After row heating, heating furnace (5) increase heat energy is entered back into, hot water perfusion is carried out finally by the choke valve (11) of production tree (10)；
Being pressurized gas injection is：By the joint of the outlet conduit end of gas compressor (4) and choke valve (11) phase of production tree (10)
Even, supercharging gas injection operation is carried out by the choke valve (11) of production tree (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710665243.0A CN107288600B (en) | 2017-08-07 | 2017-08-07 | Device and process for compositely driving oil field to increase yield by tail gas reinjection and waste heat utilization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710665243.0A CN107288600B (en) | 2017-08-07 | 2017-08-07 | Device and process for compositely driving oil field to increase yield by tail gas reinjection and waste heat utilization |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107288600A true CN107288600A (en) | 2017-10-24 |
| CN107288600B CN107288600B (en) | 2023-03-24 |
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| CN201710665243.0A Active CN107288600B (en) | 2017-08-07 | 2017-08-07 | Device and process for compositely driving oil field to increase yield by tail gas reinjection and waste heat utilization |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110863797A (en) * | 2018-08-28 | 2020-03-06 | 中国石油化工股份有限公司 | Natural gas well gas production tree circulating heating device and using method thereof |
| CN114086904A (en) * | 2020-08-25 | 2022-02-25 | 中国石油天然气股份有限公司 | Christmas tree system |
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