CN108252749A - A kind of cold, heat and electricity triple supply method based on SAGD thickened oil recovery UTILIZATION OF VESIDUAL HEAT INs - Google Patents
A kind of cold, heat and electricity triple supply method based on SAGD thickened oil recovery UTILIZATION OF VESIDUAL HEAT INs Download PDFInfo
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- CN108252749A CN108252749A CN201810016748.9A CN201810016748A CN108252749A CN 108252749 A CN108252749 A CN 108252749A CN 201810016748 A CN201810016748 A CN 201810016748A CN 108252749 A CN108252749 A CN 108252749A
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- oil recovery
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- 238000011084 recovery Methods 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 45
- 230000005611 electricity Effects 0.000 title claims abstract description 40
- 238000010796 Steam-assisted gravity drainage Methods 0.000 title claims description 34
- 239000002918 waste heat Substances 0.000 claims abstract description 24
- 238000002309 gasification Methods 0.000 claims abstract description 15
- 239000007789 gas Substances 0.000 claims abstract description 12
- 239000002699 waste material Substances 0.000 claims abstract description 10
- 230000033228 biological regulation Effects 0.000 claims abstract description 4
- 239000003921 oil Substances 0.000 claims description 42
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 28
- 239000007788 liquid Substances 0.000 claims description 18
- 238000005057 refrigeration Methods 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 14
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 14
- 239000003345 natural gas Substances 0.000 claims description 14
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 12
- 238000010793 Steam injection (oil industry) Methods 0.000 claims description 7
- 239000003517 fume Substances 0.000 claims description 7
- 229910021529 ammonia Inorganic materials 0.000 claims description 6
- 239000000908 ammonium hydroxide Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 238000010248 power generation Methods 0.000 claims description 5
- 239000012047 saturated solution Substances 0.000 claims description 5
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 claims description 4
- 238000000605 extraction Methods 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 238000009833 condensation Methods 0.000 claims description 3
- 230000005494 condensation Effects 0.000 claims description 3
- 239000000295 fuel oil Substances 0.000 claims description 3
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 claims description 2
- 230000008020 evaporation Effects 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 239000003129 oil well Substances 0.000 claims description 2
- 239000000243 solution Substances 0.000 claims description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims 1
- 238000010521 absorption reaction Methods 0.000 claims 1
- 238000004378 air conditioning Methods 0.000 claims 1
- 230000006837 decompression Effects 0.000 claims 1
- 239000003546 flue gas Substances 0.000 claims 1
- 239000011259 mixed solution Substances 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- 239000008400 supply water Substances 0.000 claims 1
- 238000010792 warming Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000004064 recycling Methods 0.000 abstract description 5
- 230000014759 maintenance of location Effects 0.000 abstract description 2
- 238000003860 storage Methods 0.000 abstract description 2
- 238000004642 transportation engineering Methods 0.000 abstract description 2
- 239000003507 refrigerant Substances 0.000 description 4
- 238000003912 environmental pollution Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 239000012267 brine Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
- F25B29/003—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention belongs to oil-gas storages and Transportation Engineering field, and in particular to a kind of cold, heat and electricity triple supply method based on SAGD thickened oil recovery UTILIZATION OF VESIDUAL HEAT INs.SAGD (horizontal well steam auxiliary oil drainage) engineerings in Liaohe Oil Field generate a large amount of " in, low-grade " waste heat thermal energy with production run, due to cannot be fully used in production capacity production process, it is arranged mostly as outer after " waste product " processing, causes greatly to waste.Recycling present invention is generally directed to oil-field thick-oil exploitation waste heat proposes a kind of method; LNG cold energy can not only be reduced to the waste of thermal energy for waste heat recovery; LNG after gasification can also be used for the peak regulation of city gas pipe network; the waste heat and cold energy resource of this method utilization recycling by the way of cold, heat and electricity triple supply realize the efficient utilization to energy and the protection to environment.
Description
Technical field
The present invention relates to oil-gas storages and Transportation Engineering technical field, and in particular to one kind is based on SAGD thickened oil recovery waste heats
The cold, heat and electricity triple supply method utilized.
Background technology
With the continuous improvement of oil exploitation technology, some special oil reservoirs increasingly cause the attention of oil worker.By
In viscous crude, proportion is larger in petroleum resources, thus how heavy crude producing, make available reserves, be oil circle one
Straight the problem of probing into.For heavy crude reservoir, it is difficult exploitation that is mined, therefore just taking some special that conventional method, which is,
Method.Liaohe Oil Field takes the lead in applying steam assisted gravity drainage (SAGD) technology：Oil well is injected by heat source of high steam, it will
Viscous crude leaks into the extraction of well group collecting pipe after being melted in underground together with the hot water of condensation, and oil recovery has been significantly increased,
But a large amount of waste heats are also produced simultaneously, mainly include 3 major parts：The waste heat (160~180 DEG C) of high-temperature produced liquid, steam injection
Boiler steam-water separator isolates the waste heat (about 280 DEG C) of high temperature brine and fume afterheat (240~260 DEG C).However, these
The waste heat thermal energy of " in, low-grade " cannot be fully used in production capacity production process, most of by as " waste product " processing
It is outer afterwards to arrange, it causes greatly to waste.
LNG can release a large amount of cold energy, generally 830-860kJ/kg in vaporization.If this portion cannot be effectively utilized
Divide cold energy, it will cause huge energy waste and environmental hazard.Therefore, LNG cold energy is applied to the recycling of middle-low temperature heat,
Cold energy is converted into work(using power cycle, it is a small amount of using LNG cold energy generations and for the LNG portion of different temperatures gradient
Cold energy recycles etc., can not only efficiently use LNG high-grade cold energy, but also while tremendous economic interests are obtained, can
To reduce the environmental pollution during LNG gasification.
Cold, heat and electricity triple supply is to move the operation of fuel gas generation equipment by main fuel tape of natural gas, and the supply of electric power of generation is used
The electricity needs at family, after system power generation the waste heat discharged by waste heat recovery utilizing equipment to user's heat supply, cooling.Cool and thermal power three
Alliance not only reduces the expense for being laid with power grid but also reduces building for refrigeration system and heating system in the successful utilization in China
If expense.
Invention content
The present invention is a kind of cold, heat and electricity triple supply method based on SAGD thickened oil recovery UTILIZATION OF VESIDUAL HEAT INs.Utilize LNG cold energy pair
Waste heat in thickened oil recovery is recycled, and is used, greatly promoted to the waste heat of recycling by way of cold, heat and electricity triple supply
Heat utilization rate, reduces cost of winning, reduces environmental pollution, for the cool and thermal power based on SAGD thickened oil recovery UTILIZATION OF VESIDUAL HEAT INs
Triple feeding method provides a kind of novel energy-saving method.
Technical solution of the present invention is as follows：The high-temperature produced fluid residual heat generated in SAGD thermal recoveries well group (1) recovery process is existed
After second preheater (7) preheats for boiler feedwater, heat is provided to LNG level-ones gasification into the second heat exchanger (8)；It will
The fume afterheat of boiler discharge is passed through the first evaporator (11) of card Linne cycle, as the heat source of cycle, is carried for circulating generation
For thermal energy, after-heat is passed through water heater (10) and exchanges heat with cold water；In card Linne cycle, absorbed in the first condenser (19)
Low-temp low-pressure ammonia water mixture after LNG colds is passed through cryogenic regenerator (18) successively after working medium pump (20) pressurization, and high temperature returns
Hot device (13) and the first evaporator (11), obtained high temperature and pressure ammonia water mixture are passed through gas-liquid separator (12), are separated
Rich ammonia saturated vapor enter the first expanding machine (14), expansion work drive the first generator (15) generate electricity, due to being separated
Poor ammonia saturated solution still have relatively high temperature and pressure, high temperature regenerator (13) is passed through as heat source, through control valve
(16) it after reducing pressure by regulating flow, after being mixed in mixer (17) with the rich ammonia solution after decrease temperature and pressure, is carried for cryogenic regenerator (18)
Supplying heat source provides heat for the gasification of LNG two levels by the first condenser (19), work is returned to after decrease temperature and pressure to ammonium hydroxide saturated solution
Matter pump (20) forms the card Linne circulation loop of closing；LNG becomes cryogenic natural gas into second after two-stage endothermic gasification
Expanding machine (21) direct expansion is done work, and the second generator of driving (22) generates electricity；In cryogenic refrigeration cycle, the low pressure of R134a is steamed
Vapour is by compressor (23) sucking and boil down to high steam heel row is to the second condenser (24), the natural gas under low temperature
The second condenser (24) is flowed through, the heat of refrigerant releasing is taken away, high pressure refrigerant vapor is made to be condensed into highly pressurised liquid, high pressure liquid
Body flows into the second evaporator (26) after throttle valve (25), and is evaporated under corresponding low pressure, draws the heat of surrounding air,
Achieve the purpose that refrigeration.
A kind of cold, heat and electricity triple supply method based on SAGD thickened oil recovery UTILIZATION OF VESIDUAL HEAT INs, the device involved in method
Including：SAGD thermal recoveries well group (1), steam injection pit shaft (2), extraction pit shaft (3), steam-water separator (4), boiler (5), the first preheater
(6), the second preheater (7), the second heat exchanger (8), LNG pump (9), water heater (10), the first evaporator (11), gas-liquid separator
(12), high temperature regenerator (13), the first expanding machine (14), the first generator (15), control valve (16), mixer (17), low temperature
Regenerator (18), the first condenser (19), working medium pump (20), the second expanding machine (21), the second generator (22), compressor
(23), the second condenser (24), throttle valve (25), the second evaporator (26).
A kind of cold, heat and electricity triple supply method based on SAGD thickened oil recovery UTILIZATION OF VESIDUAL HEAT INs passes through card Linne in method
Cycle recycles the higher temperature fume afterheat that fuel oil steam injection boiler discharges, and is recycled using LNG cold energy for card Linne
Low-temperature receiver is provided, gasify LNG while recovery waste heat, and waste heat recovery rate is rolled over oil consumption 0.023t, effectively reduced up to 92.5%
Cost of winning, rationally utilizes resource.
A kind of cold, heat and electricity triple supply method based on SAGD thickened oil recovery UTILIZATION OF VESIDUAL HEAT INs is followed card Linne in method
Ring generates electricity and the direct expansion work power generation of natural gas is for thickened oil recovery, electric energy can be provided for recovery process, while improve LNG
The utilization rate of cold energy, system annual electricity generating capacity about 3.002MkWh.
A kind of cold, heat and electricity triple supply method based on SAGD thickened oil recovery UTILIZATION OF VESIDUAL HEAT INs in method, utilizes low temperature
The remaining cold of natural gas provides cold for the refrigeration of hot-air, according to air conditioner refrigerating principle, the low-temperature refrigeration circulating device
In refrigeration working medium use R134a.
A kind of cold, heat and electricity triple supply method based on SAGD thickened oil recovery UTILIZATION OF VESIDUAL HEAT INs, in method after LNG gasification
Obtained normal temperature and pressure natural gas can be passed through city gas pipe network, meet the needs of gas ductwork peak regulation when with gas peak.
A kind of cold, heat and electricity triple supply method based on SAGD thickened oil recovery UTILIZATION OF VESIDUAL HEAT INs, method high temperature Produced Liquid
After being preheated for boiler feedwater, remaining thermal energy is absorbed by LNG level-one gasifications, after heat exchange, high-temperature produced liquid temperature drop
To 20 DEG C.
The advantages of invention
Advantages of the present invention：(1) LNG cold energy with the comprehensive utilization of thickened oil recovery waste heat is combined, is the recycling of waste heat
Cold is provided, to provide electric energy in recovery process；(2) SAGD thickened oil recoveries waste heat and the method for cold, heat and electricity triple supply are mutually tied
It closes, improves viscous crude produced quantity, waste heat recovery rate and cold energy use efficiency, reduce cost of winning, reduce environmental pollution, be
The waste problem of waste heat provides new resolving ideas during thickened oil recovery；It (3) will be thick using the method for cold, heat and electricity triple supply
Oil exploitation waste heat is recycled for water heater, card Linne and the heat source of gasification LNG, by LNG cold energy for the cold of cryogenic refrigeration cycle
Source so that technological process is closer to reality, and the utilization of resources is closer to life.
Description of the drawings
Fig. 1 is a kind of cold, heat and electricity triple supply method flow schematic diagram based on SAGD thickened oil recovery UTILIZATION OF VESIDUAL HEAT INs of the present invention；
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment is described in further detail patent of the present invention：
Patent of the present invention is specifically related to a kind of cold, heat and electricity triple supply method based on SAGD thickened oil recovery UTILIZATION OF VESIDUAL HEAT INs, in detail
Scheme is as follows, and used device includes：SAGD thermal recoveries well group (1), steam injection pit shaft (2), extraction pit shaft (3), steam-water separator
(4), boiler (5), the first preheater (6), the second preheater (7), the second heat exchanger (8), LNG pump (9), water heater (10), the
One evaporator (11), gas-liquid separator (12), high temperature regenerator (13), the first expanding machine (14), the first generator (15), control
Valve (16), mixer (17), cryogenic regenerator (18), the first condenser (19), working medium pump (20), the second expanding machine (21), the
Two generators (22), compressor (23), the second condenser (24), throttle valve (25), the second evaporator (26)；
A kind of cold, heat and electricity triple supply method based on SAGD thickened oil recovery UTILIZATION OF VESIDUAL HEAT INs, by SAGD thermal recovery well groups
(1) the high-temperature produced fluid residual heat generated in recovery process changes after the second preheater (7) preheats for boiler feedwater into second
Hot device (8) provides heat to LNG level-ones gasification；The fume afterheat that boiler is discharged is passed through to the first evaporation of card Linne cycle
Device (11) as the heat source of cycle, provides thermal energy, after-heat is passed through water heater (10) and exchanges heat with cold water for circulating generation；Card
In Linne cycle, the low-temp low-pressure ammonia water mixture after LNG colds is absorbed in the first condenser (19) and is added through working medium pump (20)
Cryogenic regenerator (18), high temperature regenerator (13) and the first evaporator (11), obtained high temperature and pressure ammonium hydroxide are passed through after pressure successively
Mixture is passed through gas-liquid separator (12), and the rich ammonia saturated vapor being separated enters the first expanding machine (14), and expansion work drives
Dynamic first generator (15) power generation, since the poor ammonia saturated solution being separated still has relatively high temperature and pressure, as
Heat source is passed through high temperature regenerator (13), after control valve (16) reducing pressure by regulating flow, with the rich ammonia solution after decrease temperature and pressure in mixer
(17) in after mixing, heat source is provided for cryogenic regenerator (18), heat is provided for the gasification of LNG two levels by the first condenser (19)
It measures, the card Linne circulation loop that working medium pump (20) forms closing is returned to after decrease temperature and pressure to ammonium hydroxide saturated solution；LNG passes through two-stage
After endothermic gasification, become cryogenic natural gas and do work into the second expanding machine (21) direct expansion, the second generator of driving (22) is sent out
Electricity；In cryogenic refrigeration cycle, the low-pressure steam of R134a is by compressor (23) sucking and boil down to high steam heel row to second
Condenser (24), the natural gas flow under low temperature take away the heat of refrigerant releasing, make height through the second condenser (24)
Compression refrigerant steam condensation is highly pressurised liquid, and highly pressurised liquid sprays into the second evaporator (26), and in phase after throttle valve (25)
It is evaporated under the low pressure answered, draws the heat of surrounding air, achieve the purpose that refrigeration.
A kind of cold, heat and electricity triple supply method based on SAGD thickened oil recovery UTILIZATION OF VESIDUAL HEAT INs, which is characterized in that method
In by card Linne cycle the higher temperature fume afterheat that fuel oil steam injection boiler discharges is recycled, utilize LNG cold energy
Low-temperature receiver is provided for card Linne cycle, gasify LNG while recovery waste heat, and waste heat recovery rate rolls over oil consumption up to 92.5%
0.023t effectively reduces cost of winning, rationally utilizes resource.
A kind of cold, heat and electricity triple supply method based on SAGD thickened oil recovery UTILIZATION OF VESIDUAL HEAT INs, which is characterized in that method
It is middle that card Linne circulating generation and the direct expansion work power generation of natural gas are used for thickened oil recovery, electricity can be provided for recovery process
Can, while the utilization rate of LNG cold energy is improved, system annual electricity generating capacity about 3.002MkWh.
A kind of cold, heat and electricity triple supply method based on SAGD thickened oil recovery UTILIZATION OF VESIDUAL HEAT INs, which is characterized in that method
The middle remaining cold using cryogenic natural gas provides cold for the refrigeration of hot-air, according to air conditioner refrigerating principle, the low temperature system
Refrigeration working medium in SAPMAC method system uses R134a.
A kind of cold, heat and electricity triple supply method based on SAGD thickened oil recovery UTILIZATION OF VESIDUAL HEAT INs, which is characterized in that method
The normal temperature and pressure natural gas obtained after middle LNG gasification can be passed through city gas pipe network, meet gas ductwork when with gas peak
The needs of peak regulation.
A kind of cold, heat and electricity triple supply method based on SAGD thickened oil recovery UTILIZATION OF VESIDUAL HEAT INs, which is characterized in that high temperature
After Produced Liquid is boiler feedwater preheating, remaining thermal energy is absorbed by LNG level-one gasifications, after heat exchange, high-temperature produced liquid
Temperature is down to 20 DEG C.
Claims (6)
1. a kind of cold, heat and electricity triple supply method based on SAGD thickened oil recovery UTILIZATION OF VESIDUAL HEAT INs, the device used in method includes：
SAGD thermal recoveries well group (1), steam injection pit shaft (2), extraction pit shaft (3), steam-water separator (4), boiler (5), the first preheater (6),
Second preheater (7), the second heat exchanger (8), LNG pump (9), water heater (10), the first evaporator (11), gas-liquid separator
(12), high temperature regenerator (13), the first expanding machine (14), the first generator (15), control valve (16), mixer (17), low temperature
Regenerator (18), the first condenser (19), working medium pump (20), the second expanding machine (21), the second generator (22), compressor
(23), the second condenser (24), throttle valve (25), the second evaporator (26)；It is characterized in that, using SAGD thermal recoveries well group (1)
Technology injects oil well by heat source of high steam, and leaking into well group together with the hot water of condensation after viscous crude is melted in underground collects
Pipe produces, and oil recovery has been significantly increased, but produce a large amount of waste heats simultaneously, the waste heat including high-temperature produced liquid, high
Temperature separation water and fume afterheat etc.；After boiler feedwater is preheated by the first preheater (6) and the second preheater (7), enter
Boiler；LNG is after LNG pump (9) pressurization, and by pipeline successively with the second heat exchanger (8), the first condenser (19), second is swollen
Swollen machine (21), the second generator (22) and the second evaporator (26) connection, form LNG cycles；Compressor (23) by pipeline according to
It is secondary to be connected with the second condenser (24), throttle valve (25) and the second evaporator (26) and return to the low of compressor (23) composition closing
Warm refrigeration cycle；First condenser (19) is connect by another pipeline with ammonia water mixture working medium, the ammonium hydroxide in exit
Solution sequentially enters cryogenic regenerator (18), high temperature regenerator (13), the first evaporator (11) after boosting by working medium pump (20)
Heat absorption is warming up to two-phase state, and ammonium hydroxide mixed solution enters gas-liquid separator (12), and the rich ammonia saturated vapor isolated enters the
Become low temperature after one expanding machine (14) expansion work, and the first generator (15) is driven to generate electricity, the poor ammonia isolated
After saturated solution enters high temperature regenerator (13) release heat, by control valve (16) reducing pressure by regulating flow, after reducing pressure by regulating flow is cooled down
After mixing, heat source is provided for cryogenic regenerator (18) in mixer (17) for rich ammonia solution after poor ammonia solution and expansion decompression,
Return the card Linne circulation loop that the first condenser (19) forms closing；By the flue gas that boiler (5) generates by the first evaporation
After device (11) provides heat for ammonium hydroxide, it is connect into water heater (10) with low-temperature heat supply water pipe, meets pot-type boiler supplying hot water
It needs.
2. a kind of cold, heat and electricity triple supply method based on SAGD thickened oil recovery UTILIZATION OF VESIDUAL HEAT INs as described in claim 1, feature
It is, the higher temperature fume afterheat that fuel oil steam injection boiler discharges is recycled by card Linne cycle, it is cold using LNG
Low-temperature receiver can be provided for card Linne cycle, gasify LNG while recovery waste heat, and waste heat recovery rate rolls over oil consumption up to 92.5%
0.023t effectively reduces cost of winning, rationally utilizes resource.
3. a kind of cold, heat and electricity triple supply method based on SAGD thickened oil recovery UTILIZATION OF VESIDUAL HEAT INs as described in claim 1, feature
It is, by card Linne circulating generation and the direct expansion work power generation of natural gas for thickened oil recovery, can be provided for recovery process
Electric energy, while the utilization rate of LNG cold energy is improved, system annual electricity generating capacity about 3.002MkWh.
4. a kind of cold, heat and electricity triple supply method based on SAGD thickened oil recovery UTILIZATION OF VESIDUAL HEAT INs as described in claim 1, feature
It is, in cryogenic refrigeration cycle, cold is provided for the refrigeration of hot-air using the remaining cold of cryogenic natural gas, according to air-conditioning
Refrigeration principle, the refrigeration working medium in the low-temperature refrigeration circulating device use R134a.
5. a kind of cold, heat and electricity triple supply method based on SAGD thickened oil recovery UTILIZATION OF VESIDUAL HEAT INs as described in claim 1, feature
It is, the normal temperature and pressure natural gas obtained after LNG gasification can be passed through city gas pipe network, meet Gas Pipe when with gas peak
The needs of net peak regulation.
6. a kind of cold, heat and electricity triple supply method based on SAGD thickened oil recovery UTILIZATION OF VESIDUAL HEAT INs as described in claim 1, feature
It is, after high-temperature produced liquid is boiler feedwater preheating, remaining thermal energy is absorbed by LNG level-one gasifications, high after heat exchange
Warm Produced Liquid temperature is down to 20 DEG C.
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| CN110544786A (en) * | 2019-08-12 | 2019-12-06 | 山东大学 | Combined cooling, heating and power system of high-temperature proton exchange membrane fuel cell and working method thereof |
| CN110905747A (en) * | 2019-11-28 | 2020-03-24 | 西安石油大学 | Combined power cycle power generation system utilizing high-temperature solar energy and LNG cold energy |
| CN112664171A (en) * | 2020-12-23 | 2021-04-16 | 河南恒聚新能源设备有限公司 | Wind-solar-heat-hydrogen-storage integrated system for thermal recovery of thick oil steam in onshore oil field |
| CN114963687A (en) * | 2022-04-19 | 2022-08-30 | 北京科技大学 | System and method for generating thick oil gas and steam multi-element fluid |
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| CN114963687A (en) * | 2022-04-19 | 2022-08-30 | 北京科技大学 | System and method for generating thick oil gas and steam multi-element fluid |
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