CN103742112A - Systems and methods for producing oil and/or gas - Google Patents
Systems and methods for producing oil and/or gas Download PDFInfo
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- CN103742112A CN103742112A CN201310750321.9A CN201310750321A CN103742112A CN 103742112 A CN103742112 A CN 103742112A CN 201310750321 A CN201310750321 A CN 201310750321A CN 103742112 A CN103742112 A CN 103742112A
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- ether
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
- C09K8/594—Compositions used in combination with injected gas, e.g. CO2 orcarbonated gas
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
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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
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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
Abstract
A method comprising recovering a carbon source from a formation; converting at least a portion of the carbon source to a synthesis gas; converting at least a portion of the synthesis gas to an ether; and injecting at least a portion of the ether into the formation.
Description
The application is divisional application, and the application number of its female case application is 200980128127.9, and the applying date is on June 25th, 2009, and denomination of invention is " for the production of the system and method for oil and/or gas ".
Technical field
The present invention relates to the system and method for the production of oil and/or gas.
Background technology
Can pass through enhanced oil recovery (EOR) and increase the oil recovery in the oil gas field of global range.Can use the EOR (heating, injection chemical substance/polymer and gas injection) of existing three kinds of main Types to increase oil recovery from reservoir, in addition can be by conventional method (extend as much as possible the life-span of oil gas field and increase the oil recovery factor) to achieve this end.
Hot enhanced recovery is by adding heat to play a role to reservoir.The mode of the most extensively implementing is steam flooding, and it reduces oil viscosity so that it can flow to producing well.The capillary force enhanced recovery of Residual oil is held back in the chemical displacement of reservoir oil by reduction.Polymer displacement of reservoir oil increases the displacement sweep efficiency of the water injecting.Mixed water injection plays a role according to the mode similar to the chemical displacement of reservoir oil.By injecting the fluid miscible with oil, the Residual oil that can gather and hold back.
With reference to figure 1, wherein illustrate prior art systems 100.System 100 comprises subsurface formations 102, subsurface formations 104, subsurface formations 106 and subsurface formations 108.Production equipment 110 is provided on earth's surface.Well 112 passes stratum 102 and 104 and ends in stratum 106.In 114 parts that shown stratum 106.By well 112 arrive production equipment 110 from stratum 106, produce oil gentle.Divided gas flow and liquid, by gas storage in gas reservoir 116 with by fluid storage in liquid memory 118.
U.S. Patent number 5,826,656 disclose the method for the water drive Residual oil of gathering from the subsurface formations being penetrated from earth's surface by least one well that is loaded with water drive oil, and the method comprises: by for the completion of injecting the bottom of carrying oil formation with the miscible solvent of oil will be injected to the bottom that is loaded with water drive Residual oil of carrying oily subsurface formations with the miscible solvent of oil; Within the period that equals at least one week, continue to inject the bottom of carrying oil formation with the miscible solvent of oil; Again complete and oily miscible solvent and the well of water drive Residual oil a certain amount of for the top output from carrying oil formation; With top output a certain amount of solvent and the water drive Residual oil miscible with oil from carrying oil formation.Can be drive by water drive with the miscible solvent of oil in early days on described stratum.Can inject solvent by horizontal well, and can be by multiple completions of the top output oil for from carrying oil formation and solvent gather solvent and oil.U.S. Patent number 5,826,656 which is hereby incorporated by reference.
Common pending trial U.S. Patent Application Publication No.2006/0254769 (is disclosed on November 16th, 2006, with attorney docket be TH2616) a kind of system disclosed, described system comprises: from the mechanism of subsurface formations recovery of oil and/or gas, wherein said oil and/or gas bag are containing one or more hydrocarbon; At least a portion hydrocarbon in gathered oil and/or gas is converted into the mechanism of carbon disulfide formulation; With the mechanism that discharges at least a portion carbon disulfide formulation in stratum.Which is hereby incorporated by reference for U.S. Patent Application Publication No.2006/0254769.
Common pending trial PCT Patent Application Publication WO2008/141051 (be disclosed on November 20th, 2008, and attorney docket being TH3276) discloses and a kind ofly by subsurface formations, has been produced oil and/or the system of gas, and described system comprises: the well above stratum; The mechanism of enhanced oil recovery preparation being injected to stratum, wherein said enhanced oil recovery preparation comprises dimethyl ether; With from stratum, produce oil and/or the mechanism of gas.Common pending trial PCT Patent Application Publication WO2008/141051 quotes in full as a reference this this.
This area need to be used for improved system and the method for enhanced oil recovery.This area also needs to use improved system and the method for solvent (for example, by visbreaking, chemical action and the miscible displacement of reservoir) with enhanced oil recovery.This area also needs for the improved system of the solvent miscible displacement of reservoir and method.
Summary of the invention
In one aspect, the invention provides and a kind ofly from subsurface formations, produce oil and/or the system of gas, described system comprises: the well above stratum; The mechanism of enhanced oil recovery preparation being injected to stratum, described enhanced oil recovery preparation comprises ether, and described ether comprises 2-20 carbon; With from stratum, produce oil and/or the mechanism of gas.
On the other hand, the invention provides a kind of producing oil and/or the method for gas, described method comprises by the first well injects ether preparation in stratum; With by the second well, from stratum, produced oil and/or gas.
On the other hand, the invention provides a kind of method, described method comprises: the carbon source of gathering from stratum; At least a portion carbon source is converted into synthesis gas; At least a portion synthesis gas is converted into ether; With by least a portion ether inject stratum.
Advantage of the present invention comprises following one or more:
Use improved system and the method for solvent from stratum enhanced hydrocarbons recovery.
Use the fluid that contains miscible solvent from improved system and the method for stratum enhanced hydrocarbons recovery.
For improvement composition and/or the technology of secondary recovery of hydrocarbons.
For improved system and the method for enhanced oil recovery.
Use improved system and the method for miscible solvent with enhanced oil recovery.
In using in position with improved system and the method for the miscible compound of oil with enhanced oil recovery.
For the treatment of improved system and the method for produced gas.
Reduce or cancel improved system and the method for the produced gas of igniting the torch or reinject.
The improved system and the method that for reformed gas, are liquid.
For being gathered and gentle improved system and the method for transferring oil by stratum.
For keeping improved system and the method for strata pressure.
For keeping improved system and the method for throughput rate.
For increasing storage improved system and the method in layer life-span.
Accompanying drawing explanation
Fig. 1 illustrates oil and/or gas production system.
Fig. 2 a illustrates well distribution map.
Fig. 2 b and 2c illustrate the well distribution map of Fig. 2 a during enhanced oil recovery processes.
Fig. 3 a-3c illustrates oil and/or gas production system.
Fig. 4 illustrates oil and/or gas production method.
Fig. 5 illustrates the production method of EOR reagent.
The specific embodiment
Well interval
With reference to figure 2a, illustrate the array of well 200 in some embodiments.Array 200 comprises well group 202 (representing with horizon) and well group 204 (representing with oblique line).
Between adjacent well in each well and well group 202 in well group 202, there is horizontal range 230.Between adjacent well in each well and well group 202 in well group 202, there is vertical distance 232.
Between adjacent well in each well and well group 204 in well group 204, there is horizontal range 236.Between adjacent well in each well and well group 204 in well group 204, there is vertical distance 238.
Between adjacent well in each well and well group 204 in well group 202, there is distance 234.Between adjacent well in each well and well group 202 in well group 204, there is distance 234.
In some embodiments, the each well in well group 202 by 4 wells in well group 204 around.In some embodiments, the each well in well group 204 by 4 wells in well group 202 around.
In some embodiments, horizontal range 230 is about 5-1000 rice or about 10-500 rice or about 20-250 rice or about 30-200 rice or about 50-150 rice or about 90-120 rice or approximately 100 meters.
In some embodiments, vertical distance 232 is about 5-1000 rice or about 10-500 rice or about 20-250 rice or about 30-200 rice or about 50-150 rice or about 90-120 rice or approximately 100 meters.
In some embodiments, horizontal range 236 is about 5-1000 rice or about 10-500 rice or about 20-250 rice or about 30-200 rice or about 50-150 rice or about 90-120 rice or approximately 100 meters.
In some embodiments, vertical distance 238 is about 5-1000 rice or about 10-500 rice or about 20-250 rice or about 30-200 rice or about 50-150 rice or about 90-120 rice or approximately 100 meters.
In some embodiments, distance 234 is about 5-1000 rice or about 10-500 rice or about 20-250 rice or about 30-200 rice or about 50-150 rice or about 90-120 rice or approximately 100 meters.
In some embodiments, the array of well 200 can be containing the 10-1000 well of having an appointment, for example about 1-500 well in about 1-500 well and well group 204 in well group 202.
In some embodiments, in the top view of the array of well 200, well group 202 and well group 204 are the peupendicular holes at interval in a soil.In some embodiments, in the cross sectional side view of the array of well 200, well group 202 and well group 204 are the horizontal wells at interval in stratum.
With reference to figure 2b, illustrate the array of well 200 in some embodiments.Array 200 comprises well group 202 (representing with horizon) and well group 204 (representing with oblique line).
In some embodiments, miscible enhanced oil recovery reagent is injected to well group 204, and from well group 202 recovery of oil.As shown in the figure, miscible enhanced oil recovery reagent has the distribution of injection 208, and oil recovery profile 206 produces to well group 202.
In some embodiments, miscible enhanced oil recovery reagent is injected to well group 202, and from well group 204 recovery of oil.As shown in the figure, miscible enhanced oil recovery reagent has the distribution of injection 206, and oil recovery profile 208 produces to well group 204.
In some embodiments, within the first period, well group 202 can be used for injecting miscible enhanced oil recovery reagent, and well group 204 can be used for from stratum, producing oil and/or gas; Within the second period, well group 204 can be used for injecting miscible enhanced oil recovery reagent subsequently, and well group 202 can be used for from stratum, producing oil and/or gas, and wherein the first period and the second period form the cycle.
In some embodiments, can carry out multiple cycles, its be included in inject miscible enhanced oil recovery reagent and from stratum produce oil and/or gas between well group 202 and 204 alternately, wherein within the first period, a well group injects and another production, and in the second period, they is switched subsequently.
In some embodiments, the cycle can be approximately 12 hours-1 year or approximately 3 days-June or approximately 5 days-March.In some embodiments, each cycle can extend in time, and for example each cycle can be about 5-10% than the previous cycle, for example, be about 8%.
In some embodiments, in the time of can be initial in the cycle, inject miscible enhanced oil recovery reagent or the mixture containing miscible enhanced oil recovery reagent, and when end cycle, inject immiscible enhanced oil recovery reagent or the mixture containing immiscible enhanced oil recovery reagent.In some embodiments, the initial period in cycle can be the front 10-80% in cycle or the front 20-60% in cycle, the front 25-40% in cycle, and processing completion time used for them can be the remaining time in cycle.
With reference to figure 2c, illustrate the array of well 200 in some embodiments.Array 200 comprises well group 202 (representing with horizon) and well group 204 (representing with oblique line).
In some embodiments, miscible enhanced oil recovery reagent is injected to well group 204, and from well group 202 recovery of oil.As shown in the figure, miscible enhanced oil recovery reagent has to inject and distributes 208, its with produce the oil recovery profile 206 overlapping 210 to well group 202.
In some embodiments, miscible enhanced oil recovery reagent is injected to well group 202, and from well group 204 recovery of oil.As shown in the figure, miscible enhanced oil recovery reagent has to inject and distributes 206, its with produce the oil recovery profile 208 overlapping 210 to well group 204.
Enhanced oil recovery method
Any method that can be known is used the array of well 200 from subsurface formations recovery of oil and/or gas.Applicable method comprise subsea production, sea produce, once, secondary or produce for three times.Selection for the method from subsurface formations recovery of oil and/or gas is not crucial.
In some embodiments, oil and/or gas can be gathered in well from stratum, and make it flow through well and pipeline to equipment.In some embodiments, by using for example steam, water, surfactant, polymer flooding oil substances and/or miscible solvent of reagent for example dimethyl ether preparation, diethyl ether preparation or carbon dioxide, can be by enhanced oil recovery to increase from the oil on stratum and/or the flow of gas.
Can use known arbitrarily method to discharge the miscible enhanced oil recovery reagent of at least a portion and/or other liquid and/or gas.Applicable method is miscible enhanced oil recovery preparation to be injected to an independent conduit for individual well, soaks ether preparation, pumps at least a portion ether preparation with subsequently together with gas and/or liquid.Another applicable method is that miscible enhanced oil recovery preparation is injected to the first well, and by the second well, pumps at least a portion carbon disulfide formulation together with gas and/or liquid.The selection that is used for the method for injecting the miscible enhanced oil recovery preparation of at least a portion and/or other liquid and/or gas is not crucial.
In some embodiments, can be at height to miscible enhanced oil recovery preparation and/or other liquid and/or gas pump being sent in stratum under the pressure of formation fracture pressure.
In some embodiments, miscible enhanced oil recovery preparation can be mixed in oil in stratum and/or gas to form the mixture that can gather from well.In some embodiments, can be by a certain amount of miscible enhanced oil recovery preparation Injection Well, inject subsequently another component to drive preparation through stratum.Can use water, carbon dioxide, nitrogen, alcohol, other gas, other liquid and/or their mixture of for example air, liquid or steam form to drive miscible enhanced oil recovery preparation through stratum.
In some embodiments, before injecting stratum, can heat miscible enhanced oil recovery preparation to reduce the such as viscosity of heavy oil, alkane, asphalitine etc. of stratum fluid.
In some embodiments, can use and add hot fluid or heater and in stratum, heat and/or boil miscible enhanced oil recovery preparation to reduce the viscosity of fluid in stratum.In some embodiments, can use water and/or the miscible enhanced oil recovery preparation of steam to heat and/or to gasify in stratum of heating.
In some embodiments, can use heater to heat in stratum and/or boil miscible enhanced oil recovery preparation.In the U.S. Patent application that the sequence number of the common pending trial that the attorney of submitting on October 24th, 2003 is TH2557 is 10/693,816, a kind of applicable heater is disclosed.Sequence number is which is hereby incorporated by reference for 10/693,816 U.S. Patent application.
Fig. 3 a-3b:
With reference to figure 3a and 3b, illustrate the system 300 in some embodiments of the present invention.System 300 comprises subsurface formations 302, subsurface formations 304, subsurface formations 306 and subsurface formations 308.Equipment 310 is provided on earth's surface.Well 312 passes stratum 302 and 304, and has perforate in stratum 306.The part 314 on stratum 306 can be optional rupture and/or perforation.At first production period, from the gentle entering part 314 of oil of stratum 306 outputs, enter in well 312, and upwards move to equipment 310.Equipment 310 is isolated gas and liquid subsequently, and gas delivers to gas processer 316 and liquid is delivered to liquid memory 318.Equipment 310 also comprises miscible oil recovery formulation storage 330.As shown in Fig. 3 a, can be according to illustrating downward arrow down to the miscible enhanced oil recovery preparation of pumping in well 312 and being pumped in stratum 306.Can the miscible enhanced oil recovery preparation of indwelling to soak in stratum approximately 1 hour-15 days, for example about 5-50 hour.
After soaking the period, as shown in Fig. 3 b, the miscible enhanced oil recovery preparation of output and oil and/or gas are got back in well 312 subsequently, deliver to equipment 310.Equipment 310 can be used for separating and/or the miscible enhanced oil recovery preparation of recycling (for example by boiling, condensation or filter described preparation or make it reaction or water extraction), subsequently described preparation is re-injected (for example, by repeating about 2-5 time of the soak cycle shown in Fig. 3 a and 3b) in well 312.
In some embodiments, can for example, lower than formation fracture pressure (being the approximately 40-90% of fracture pressure) under, miscible enhanced oil recovery preparation be pumped in stratum 306.
In some embodiments, the well that can represent well group 202 for injecting the well 312 on stratum 306 shown in Fig. 3 a, and the well 312 from stratum 306 outputs shown in Fig. 3 b can represent the well well group 204.
In some embodiments, the well that can represent well group 204 for injecting the well 312 on stratum 306 shown in Fig. 3 a, and the well 312 from stratum 306 outputs shown in Fig. 3 b can represent the well well group 202.
Fig. 3 c:
With reference to figure 3c, illustrate the system 400 in some embodiments of the present invention.System 400 comprises subsurface formations 402, stratum 404, stratum 406 and stratum 408.Production equipment 410 is provided on earth's surface.Well 412 passes stratum 402 and 404, and has perforate in stratum 406.Part stratum 414 can be optional rupture and/or perforation.From the gentle entering part 414 of oil of stratum 406 outputs, and upwards move to production equipment 410 through well 412.Can divided gas flow and liquid, and gas can be delivered to gas reservoir 416 and liquid is delivered to liquid memory 418.Production equipment 410 can output and/or is stored miscible enhanced oil recovery preparation, can be in production/holder 430 output and store this miscible enhanced oil recovery preparation.Dimethyl ether, diethyl ether and/or other ether of artesian well 412 are delivered to miscible enhanced oil recovery preparation production/holder 430 in the future.Can miscible enhanced oil recovery preparation be pumped down to along well 432 to the part 434 on stratum 406.Miscible enhanced oil recovery preparation is gentle with supplement production oil through stratum 406, and miscible enhanced oil recovery preparation, oil and/or gas can all be produced to well 412 and deliver to production equipment 410 subsequently.The miscible enhanced oil recovery preparation that can again circulate subsequently, for example by boiling, condensation or filter described preparation or make it reaction or water extraction subsequently described preparation being re-injected in well 432.
In some embodiments, can be by the mixture Injection Well 432 of a certain amount of miscible enhanced oil recovery preparation or miscible enhanced oil recovery preparation and other component, inject subsequently other component to drive the mixture of miscible enhanced oil recovery preparation or miscible enhanced oil recovery preparation and other component through stratum 406, described other component for example comprises: air; Gaseous state or liquid water; The water mixing with one or more salt, polymer and/or surfactant; Carbon dioxide; Nitrogen; Alcohol; Other gas; Other liquid; And/or their mixture.
In some embodiments, produce oil and/or the well 412 of gas represents the well in well group 202, and for injecting the well 432 of miscible enhanced oil recovery preparation, represent the well of well group 204.
In some embodiments, produce oil and/or the well 412 of gas represents the well in well group 204, and for injecting the well 432 of miscible enhanced oil recovery preparation, represent the well of well group 202.
Fig. 4
With reference to figure 4, illustrate method 500 in some embodiments of the present invention.Method 500 comprises: the miscible enhanced oil recovery preparation of injection being represented by graticule; The injection immiscible enhanced oil recovery preparation being represented by oblique line figure; With producing oil from stratum and/or gas of being represented by blank sheet.
Top timeline has shown the time limit for injection and the production of well group 202, and bottom timeline has shown the time limit for injection and the production of well group 204 simultaneously.
In some embodiments, in the moment 520, interior by miscible enhanced oil recovery preparation injection well group 202 in the period 502, within the period 503, from well group 204, produce oil and/or gas simultaneously.Subsequently, interior by miscible enhanced oil recovery preparation injection well group 204 in the period 505, within the period 504, from well group 202, produce oil and/or gas simultaneously.This injection/production cycle that is used for well group 202 and 204 can continue multiple cycles, for example the about 5-25 cycle.
In some embodiments, in the moment 530, because during the moment 520, output oil and/or gas may produce cavity in stratum.During the moment 530, may only in the leading edge portion of cavity, be filled with miscible enhanced oil recovery preparation, with immiscible enhanced oil recovery preparation, promote this miscible enhanced oil recovery preparation subsequently and pass through stratum.Can be interior by miscible enhanced oil recovery preparation injection well group 202 in the period 506, subsequently can be interior by immiscible enhanced oil recovery preparation injection well group 202 in the period 508, can within the period 507, from well group 204, produce oil and/or gas simultaneously.Subsequently, can be interior by miscible enhanced oil recovery preparation injection well group 204 in the period 509, then can be interior by immiscible enhanced oil recovery preparation injection well group 204 in the period 511, can within the period 510, from well group 202, produce oil and/or gas simultaneously.This injection/production cycle that is used for well group 202 and 204 can continue multiple cycles, for example the about 5-25 cycle.
In some embodiments, in the moment 540, between well group 202 and well group 204, can there is obvious hydraulic communication.Can be interior by miscible enhanced oil recovery preparation injection well group 202 in the period 512, then can be interior by immiscible enhanced oil recovery preparation injection well group 202 in the period 514, can within the period 515, from well group 204, produce oil and/or gas simultaneously.To well group 202, inject miscible enhanced oil recovery preparation and immiscible enhanced oil recovery preparation and from well group 204, produce oil and/or the circulation of gas can continue the required long as far as possible time simultaneously, as long as for example can produce oil and/or gas from well group 204.
In some embodiments, the period 502,503,504 and/or 505 can be approximately 6 hours-10 days, for example about 12-72 hour or about 24-48 hour.
In some embodiments, the duration of day part 502,503,504 and/or 505 can extend to the moment 530 from the moment 520.
In some embodiments, day part 502,503,504 and/or 505 can continue about 5-25 cycle, for example about 10-15 cycle from moment 520 to the moment 530.
In some embodiments, the period 506 is the approximately 10-50% of the combination duration of period 506 and period 508, for example about 20-40%, or about 25-33%.
In some embodiments, the period 509 is the approximately 10-50% of the combination duration of period 509 and period 511, for example about 20-40%, or about 25-33%.
In some embodiments, the combination duration of period 506 and period 508 is about 2-21 days, for example about 3-14 days, or about 5-10 days.
In some embodiments, the combination duration of period 509 and period 511 is about 2-21 days, for example about 3-14 days, or about 5-10 days.
In some embodiments, the combination duration of period 512 and period 514 is about 2-21 days, for example about 3-14 days, or about 5-10 days.
In some embodiments, the oil of production and/or gas can be delivered to refinery and/or treatment facility.Can process oil and/or gas to produce commercial product, for example transport fuel is as gasoline and diesel oil, domestic fuel oil, sliding agent, chemicals and/or polymer.Processing method can comprise that distillation and/or distillate oil and/or gas are to produce one or more distillation fractions.In some embodiments, can carry out following one or more processing to oil and/or gas and/or one or more distillation fractions: catalytic cracking, hydrocracking, hydrotreatment, coking, thermal cracking, distillation, reformation, polymerization, isomerization, alkylation, blend and dewaxing.
Enhanced oil recovery reagent
In some embodiments, can utilize methyl alcohol and/or one or more carbinol derivatives recovery of oil and/or gas from stratum, described carbinol derivatives is if dimethyl ether, acetic acid, formaldehyde and alkene, other ether are as methyl tertiary butyl ether(MTBE) (MTBE), ethyl tert-butyl ether (ETBE) (ETBE), tert pentyl methyl ether (TAME) and similar item, dimethoxymethane, many dimethoxymethane and other chemical products being produced by methyl alcohol, hereinafter referred to as carbinol compound.Carbinol compound can comprise dimethyl ether.
In some embodiments, can utilize following material recovery of oil and/or gas from stratum: nitrogen; Glycols, as monoethylene glycol, diethylene glycol, triethylene glycol and TEG; Ethanol, methyl alcohol or other alcohol; Acetal; Polyalcohol, methyl isobutyl alcohol, butyl propionate, methyl acetate, ethyl acetate, tert-butyl acetate or other ester; Methyl ethyl ketone, methyl iso-butyl ketone (MIBK) or other ketone; And/or one or more carbinol derivatives are as dimethyl ether and dimethyl carbonate, and/or one or more alcohol derivatives are as diethyl ether and diethyl carbonate.
In some embodiments, from the hydrocarbon on stratum, can be converted into dimethyl ether preparation.Can apply any known method at least a portion hydrocarbon is converted into dimethyl ether preparation.Suitable method may be included under high temperature and moderate pressure and make steam and natural gas via contain the catalyst reaction of reduced state nickel, thereby produces synthesis gas, and wherein said natural gas may contain C
1-C
6compound, as C
1-C
4compound.Synthesis gas product can be delivered to methanol reactor and produce methyl alcohol, methyl alcohol can dewater and produce dimethyl ether preparation.For the selection that at least a portion hydrocarbon is changed into the method for dimethyl ether preparation, not crucial.
U.S. Patent No. 7,168,265,7,100,692 and 7,083,662 disclose by natural gas and have prepared dimethyl ether.U.S. Patent No. 7,168,265,7,100,692 and 7,083,662 which is hereby incorporated by reference.
In some embodiments, the miscible enhanced oil recovery reagent being applicable to can be dimethyl ether preparation.Dimethyl ether preparation can comprise for example methyl alcohol of dimethyl ether and/or dimethyl ether derivative and/or precursor and their mixture; With optional following one or more: carbon dioxide, C
1-C
6hydrocarbon, water, nitrogen and their mixture.
In some embodiments, the miscible enhanced oil recovery reagent being applicable to comprises mixture or other miscible enhanced oil recovery reagent as known in the art of dimethyl ether, hydrogen sulfide, carbon dioxide, octane, pentane, LPG, C2-C6 aliphatic hydrocarbon, nitrogen, diesel oil, petroleum solvent, diluent naphtha, asphalt solution, kerosene, acetone, dimethylbenzene, trichloroethanes or two or more aforementioned agents.In some embodiments, the miscible enhanced oil recovery reagent being applicable to is to contact mixable for the first time with oil in stratum or multiple-contact is mixable.
Fig. 5:
With reference to figure 5, illustrate the production method 600 of miscible enhanced oil recovery reagent.Originate in 602, obtain carbon source.Suitable carbon source comprises produced natural gas, crude oil, pitch, oil shale, Tar sands, coke, coal and animal or plant fat or other carbon source known in the art.The selection of carbon source is not very crucial.
At 604 places, by any known method of this area, carbon source is converted into synthesis gas.A kind of applicable method that is synthesis gas by methane conversion discloses in the open US2004/0256116 of United States Patent (USP), and which is hereby incorporated by reference for it.For the selection that carbon source is changed into the method for synthesis gas, not crucial.
At 606 places, synthesis gas is converted to alcohol, for example methyl alcohol.A kind of applicable method that synthesis gas is converted into alcohol discloses in the open US2004/0256116 of United States Patent (USP), and which is hereby incorporated by reference for it.For the selection that synthesis gas is changed into the method for alcohol, not crucial.
At 608 places, alcohol is converted to ether, and for example ethanol conversion is that ethylether, methanol conversion are that the mixture of methyl ether or methyl alcohol and ethanol is converted into methyl ethyl ether.A kind of applicable method that one or more alcohol is converted into ether is catalytic distillation, and the method discloses in the open US2004/0204614 of United States Patent (USP), and which is hereby incorporated by reference for it.The appropriate method that is diethyl ether by ethanol conversion discloses in JP63310841, JP63253043 and JP60215642, and which is hereby incorporated by reference for they.Other appropriate method that alcohol is converted into ether is in U.S. Patent No. 5,684, and 213,5,750,799 and 6,740,783; U.S. Patent Application Publication No.2004/0034255,2004/0064002,2006/0020155,2006/0135823,2006/0224012,2007/0066855 and 2007/0078285; With in International Publication WO2006/041253 and 2008/026887, disclose, they are all in full incorporated herein by reference at this.For the selection that alcohol is changed into the method for ether, not crucial.
At 610 places, ether is injected to stratum to assist recovery of oil and/or gas.The appropriate method of filling liquid and gas discloses in the above, and is well known in the art.The selection that is used for the method for injecting ether is not crucial.
In some embodiments, 606 and 608 can combine, and now in independent method, synthesis gas are converted into ether.The appropriate method that synthesis gas is converted into ether discloses in Publication about Document: U.S. Patent No. 5,218,003,5,908,963,6,069,180,6,191,175 and 6,458,856; U.S. Patent Application Publication No.2005/0038129,2006/0020155 and 2007/0078285; International Publication WO99/21814; European patent application No.0324475,0409086,0483609; With UK Patent Application No.2253623; All which is hereby incorporated by reference for they.The selection of the method that is ether for transformation of synthetic gas is not crucial.
In some embodiments, method 600 can be inputted the natural gas, crude oil or other carbon source that from Local Layer, produce, and described Local Layer for example injects the same formation of ether wherein.
In some embodiments, method 600 can skips steps 602 and 604, and can input the ethanol being produced by corn, sugarcane, cellulose or other sugared source known in the art.
In some embodiments, the suitable ether producing at 608 places comprises the ether with an about 2-20 carbon, a for example about 3-10 carbon or an about 4-8 carbon.Suitable ether comprises dimethyl ether, methyl ethyl ether, diethyl ether, dipropyl ether, methyl-propyl ether, ethyl propyl ether (uncle or secondary ether), butyl oxide (uncle or the second month in a season or tertiary ether), diamyl ether, tert pentyl methyl ether (TAME), ethyl tert-butyl ether (ETBE) (ETBE), methyl tertiary butyl ether(MTBE) (MTBE) and other ether with an about 2-20 carbon known in the art.
In some embodiments, processing step 608 can produce ether and one or more byproducts as alcohol, water, carbon dioxide, nitrogen and possible other liquid and/or gas.These byproducts also can inject or promote ether as immiscible enhanced oil recovery reagent using the form of mixture with ether and pass through stratum.
In some embodiments, suitable immiscible enhanced oil recovery reagent comprises gaseous state or liquid water, air, nitrogen or aforesaid two or more mixture or other immiscible enhanced oil recovery reagent known in the art.In some embodiments, suitable immiscible enhanced oil recovery reagent contacts immiscible or multiple-contact immiscible first with the oil in stratum.
In some embodiments, the immiscible and/or the miscible enhanced oil recovery reagent that are injected in stratum can reclaim from produced oil and/or gas, and reinject in stratum.
In some embodiments, the oil viscosity existing on stratum before any enhanced oil recovery reagent of injection is at least about 0.01 centipoise, or at least about 0.1 centipoise, or at least about 0.5 centipoise, or at least about 1 centipoise, or at least about 2 centipoises, or at least about 5 centipoises.In some embodiments, inject the oil viscosity that exists on stratum before any enhanced oil recovery reagent can be up to approximately 500 centipoises, or up to approximately 100 centipoises, or up to approximately 50 centipoises, or up to approximately 25,000 centipoises.
Schematically embodiment:
In one embodiment of the invention, disclose a kind ofly for producing oil from subsurface formations and/or the system of gas, described system comprises: the well above stratum; The mechanism of enhanced oil recovery preparation being injected to stratum, described enhanced oil recovery preparation comprises ether, and described ether comprises 2-20 carbon; With from stratum, produce oil and/or the mechanism of gas.In some embodiments, described system also comprises the second well that has certain distance with the first well, wherein from stratum, produces oil and/or the mechanism of gas is arranged in the second well.In some embodiments, for the mechanism of injecting, be positioned at well, and wherein from stratum, produce oil and/or the mechanism of gas is arranged in well.In some embodiments, subsurface formations is below water body.In some embodiments, described system also comprise for after enhanced oil recovery preparation has been released into stratum to the mechanism of injecting immiscible enhanced oil recovery preparation in stratum.In some embodiments, enhanced oil recovery preparation also comprises one or more in following material: hydrogen sulfide, carbon disulfide, carbon dioxide, carbon monoxide, octane, pentane, LPG, propane, C
2-C
6aliphatic hydrocarbon, nitrogen, diesel oil, petroleum solvent, diluent naphtha, asphalt solution, kerosene, acetone, dimethylbenzene, trichloroethanes, acetal, glycol, polyalcohol, ester, ketone, aldol, alcohol, ammonia, amine and their mixture.In some embodiments, described system also comprises and is selected from following immiscible enhanced oil recovery preparation: gaseous state or liquid water, air, nitrogen, methane and their mixture.In some embodiments, described well comprises the well array of 5-500 well.In some embodiments, from stratum, produce oil and/or the mechanism of gas is positioned at well.In some embodiments, described system also comprises for the mechanism from stratum production carbon source.In some embodiments, described system also comprises the mechanism that produces synthesis gas from carbon source.In some embodiments, described system also comprises direct from synthesis gas or utilizes alcohol intermediate to produce the mechanism of ether.In some embodiments, described system also comprises the mechanism for the production of ether adjacent with well.
In one embodiment of the invention, disclose a kind of producing oil and/or the method for gas, described method comprises by the first well injects ether preparation in stratum; With by the second well, from stratum, produced oil and/or gas.In some embodiments, if described method also comprises, reclaim the ether preparation existing from oil and/or gas, the ether preparation then at least a portion being reclaimed injects stratum.In some embodiments, inject ether preparation and comprise to stratum, injecting at least a portion ether preparation with the form of the mixture of following one or more materials: the hydrocarbon, carbon dioxide, carbon monoxide, nitrogen or their mixture that are different from described ether.In some embodiments, injecting ether preparation comprises and with form of mixtures, to stratum, injects at least a portion ether preparation, the ether that wherein said mixture comprises 5-90wt%.In some embodiments, described method is also included in and ether preparation is injected before stratum or in stratum, heat described ether preparation.In some embodiments, the injection pressure of described ether preparation is higher than initial storage stressor layer 0-37, and 000kPa, injects and start pre-test at ether.In some embodiments, the storage layer temperature of the storage layer that described ether preparation injects is at least 100 ℃, for example at least 250 ℃, at ether, injects and starts pre-test.In some embodiments, the permeability of described subsurface formations is 0.0001-15 darcy, and for example permeability is 0.001-1 darcy.In some embodiments, described method also comprises that oil that at least a portion is gathered and/or cyclostrophic turn to and is selected from following material: transport fuel is as gasoline and diesel oil, domestic fuel oil, sliding agent, chemicals and/or polymer.In some embodiments, described method also comprises oil and/or cyclostrophic etherization that at least a portion is gathered, and described ether is injected to subsurface formations.In some embodiments, if described method also comprises from oil and/or gas, reclaim the ether preparation existing, and then by described ether formulation example as being delivered to other position by pipeline, container, pressure vessel or quench vessel.In some embodiments, described method also comprises oil and/or cyclostrophic etherization that at least a portion is gathered, and then by ether formulation example as being delivered to other position by pipeline, container, pressure vessel or quench vessel.In some embodiments, subsurface formations comprises the oil that API is 10-100.In some embodiments, inject ether preparation and comprise the mixture that injects ether preparation and water.In some embodiments, water also comprises the water-soluble polymer for increasing mixture viscosity.In some embodiments, described method is also included in Offshore Structures and produces ether preparation by the original material that comprises synthesis gas, methyl alcohol or their mixture.In some embodiments, described method also comprises the bubble point that reduces oil in stratum with ether preparation.In some embodiments, described method also comprises the coefficient of expansion that increases oil in stratum with ether preparation.In some embodiments, described method also comprises by oil viscosity in ether preparation reduction stratum.
In one embodiment of the invention, disclose a kind of method, described method comprises: the carbon source of gathering from stratum; At least a portion carbon source is converted into synthesis gas; At least a portion synthesis gas is converted into ether; With by least a portion ether inject stratum.
It will be understood by those skilled in the art that under the prerequisite of spirit and scope that does not depart from disclosed embodiments of the present invention, structure, materials and methods, can carry out multiple adjustment and variation to them.Therefore, the scope of claims and the conversion of their equivalent functions herein should not be limited to describe herein and illustrated specific embodiments, and in fact these specific embodiments are only for illustrating the present invention.
Claims (25)
1. for producing oil from subsurface formations and/or the system of gas, described system comprises:
Through the well on stratum;
Be positioned at the mechanism that well injects enhanced oil recovery preparation on stratum, described enhanced oil recovery preparation comprises dimethyl ether and water; With
Be arranged in that well produces oil from stratum and/or the mechanism of gas.
2. the system of claim 1, wherein enhanced oil recovery preparation also comprises one or more in following material: hydrogen sulfide, carbon disulfide, carbon dioxide, carbon monoxide, octane, pentane, LPG, propane, C
2-C
6aliphatic hydrocarbon, nitrogen, diesel oil, petroleum solvent, diluent naphtha, asphalt solution, kerosene, acetone, dimethylbenzene, trichloroethanes, acetal, glycol, polyalcohol, ester, ketone, aldol, alcohol, ammonia and their mixture.
3. the system of claim 1-2 any one, wherein said well comprises the well array of 1-500 well.
4. the system of claim 1-3 any one, also comprises the mechanism of production carbon source from stratum.
5. the system of claim 4, also comprises the mechanism that produces synthesis gas from carbon source.
6. the system of claim 5, also comprises direct from synthesis gas or utilizes alcohol intermediate to produce the mechanism of dimethyl ether.
7. the system of claim 1-6 any one, also comprises the mechanism for the production of dimethyl ether adjacent with well.
8. for producing oil from subsurface formations and/or the method for gas, described method comprises:
By a well, in stratum, inject the ether preparation that comprises dimethyl ether and water; With
Inject described ether preparation in stratum after, by described well, from stratum, produced oil and/or gas.
9. the method for claim 8 reclaims the dimethyl ether existing, the dimethyl ether then at least a portion being reclaimed injection stratum if also comprised from oil and/or gas.
10. the method for claim 8-9 any one, wherein injects ether preparation and comprises to stratum, injecting at least a portion ether preparation with the form of the mixture of following one or more materials: the hydrocarbon, carbon dioxide, carbon monoxide, nitrogen or their mixture that are different from described ether.
The method of 11. claim 8-10 any one, wherein said ether is prepared the dimethyl ether that comprises 5-90wt%.
The method of 12. claim 8-11 any one, is also included in and ether preparation is injected before stratum or in stratum, heat described ether preparation.
The method of 13. claim 8-12 any one, the injection pressure of wherein said ether preparation is higher than initial storage stressor layer 0-37, and 000kPa, injects and starts pre-test at ether preparation.
The method of 14. claim 8-13 any one, the storage layer temperature of the storage layer that wherein said ether preparation injects is at least 100 ℃, at ether preparation, injects and starts pre-test.
The method of 15. claim 8-14 any one, the permeability of wherein said subsurface formations is 0.0001-15 darcy.
The method of 16. claim 8-15 any one, also comprises that oil that at least a portion is gathered and/or cyclostrophic turn to be selected from following material: transport fuel, domestic fuel oil, sliding agent, chemicals and/or polymer.
The method of 17. claim 8-16 any one, also comprises that oil and/or cyclostrophic that at least a portion is gathered turn to dimethyl ether, and described dimethyl ether is injected to subsurface formations.
Then the method for 18. claim 8-17 any one, if also comprise the dimethyl ether that reclaims existence from oil and/or gas, and be delivered to other position by described dimethyl ether.
The method of 19. claim 8-18 any one, also comprises that oil and/or cyclostrophic that at least a portion is gathered turn to dimethyl ether, and then described dimethyl ether is delivered to other position.
The method of 20. claim 8-19 any one, wherein said subsurface formations comprises the oil that API is 10-100.
The method of 21. claim 8-20 any one, wherein said ether preparation also comprises the water-soluble polymer for increasing mixture viscosity.
The method of 22. claim 8-21 any one, is also included in Offshore Structures and produces ether preparation by the original material that comprises synthesis gas, methyl alcohol or their mixture.
The method of 23. claim 8-22 any one, also comprises the bubble point that reduces oil in stratum with ether preparation.
The method of 24. claim 8-23 any one, also comprises the expansion that increases oil in stratum with ether preparation.
The method of 25. claim 8-24 any one, also comprises by oil viscosity in ether preparation reduction stratum.
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| US61/077,640 | 2008-07-02 | ||
| CN200980128127.9A CN102099544B (en) | 2008-07-02 | 2009-06-25 | For the production of system and method that is oily and/or gas |
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| CN201310750321.9A Active CN103742112B (en) | 2008-07-02 | 2009-06-25 | For producing the system and method for oil and/or gas |
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| CN110922954A (en) * | 2019-12-02 | 2020-03-27 | 中国石油大学(北京) | Oil displacement method and oil displacement agent for tight oil reservoir and preparation method |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN102099544A (en) | 2011-06-15 |
| WO2010002693A2 (en) | 2010-01-07 |
| GB2473383A (en) | 2011-03-09 |
| AU2009267249B2 (en) | 2012-06-14 |
| BRPI0913864A2 (en) | 2017-06-20 |
| GB201021472D0 (en) | 2011-02-02 |
| WO2010002693A3 (en) | 2010-04-08 |
| US20110272151A1 (en) | 2011-11-10 |
| CN103742112B (en) | 2017-01-04 |
| CN102099544B (en) | 2015-09-23 |
| NO20110165A1 (en) | 2011-02-02 |
| AU2009267249A1 (en) | 2010-01-07 |
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