CN101861444B - 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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- CN101861444B CN101861444B CN200880116622.3A CN200880116622A CN101861444B CN 101861444 B CN101861444 B CN 101861444B CN 200880116622 A CN200880116622 A CN 200880116622A CN 101861444 B CN101861444 B CN 101861444B
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- stratum
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- carbon disulfide
- oil recovery
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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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- 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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- 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
- E21B43/30—Specific pattern of wells, e.g. optimizing the spacing of wells
Abstract
A system for producing oil and/or gas from an underground formation comprising a first array of wells dispersed above the formation; a second array of wells dispersed above the formation; wherein the first array of wells comprises a mechanism to inject a miscible enhanced oil recovery formulation into the formation while the second array of wells comprises a mechanism to produce oil and/or gas from the formation for a first time period; a means to convert at least a portion of the miscible enhanced oil recovery formulation within the formation into another compound during a second time period; and a means to recover at least a portion of the another compound during a third time period.
Description
Technical field
Present disclosure relates to and producing oil and/or the System and method for of gas.
Background technology
Enhanced oil recovery (EOR) can be used for increasing the oil recovery of field, worldwide field.Exist the EOR (heat, chemical/polymer and gas inject) of 3 kinds of main Types to can be used for increasing the oil recovery from reservoir, exceed by conventional method can realize-may extend the life-span of field, field and increase oil recovery.
Hot enhanced recovery is by adding heat to play a role to reservoir.The form of the most extensively implementing is steam flooding, and it reduces oil viscosity and makes it can flow to producing well.The capillary force that the chemical displacement of reservoir oil is held back remaining oil by reduction strengthens gathers.Polymer displacement of reservoir oil has increased the displacement sweep efficiency of injected water.Mixed water injection plays a role in the mode similar to the chemical displacement of reservoir oil.By injecting the fluid miscible with oil, the remaining 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 facility 110 provides on ground.Well 112 passes stratum 102 and 104, and stops in stratum 106.In 114 parts that show stratum 106.Oil gentle by well 112 from stratum 106 output to production facility 110.Gas and liquid are disconnected from each other, and gas storage is in gas reservoir 116 neutralising fluids are stored in liquid memory 118.
U.S. Patent number 5,826,656 disclose a kind of gather method of water drive remaining oil of oily subsurface formations of carrying for penetrating from ground by a bite well at least after water drive oil, and the method comprises: can inject the water drive residue of carrying oily subsurface formations and carry oily than lower part for injecting the well than lower part that carries oil formation with the miscible solvent of oil by completed with the miscible solvent of oil; Lasting can with the miscible solvent of oil inject carry oil formation equal time at least one week than lower part; Again complete for divide from the higher part of carrying oil formation produce a certain amount of can with the miscible solvent of oil and the well of a certain amount of water drive remaining oil; Produce a certain amount of solvent and water drive remaining oil that can be miscible with oil with dividing from the higher part of carrying oil formation.Can be to carry out simultaneously water drive oil and can be with the miscible solvent flooded of oil before described stratum.Solvent can be injected by horizontal well and can completedly produce oil and the well of solvent gather solvent and oil for dividing from the higher part of carrying oil formation by a plurality of.U.S. Patent number 5,826,656 are incorporated herein by this reference in full.
(open day is on November 16th, 2006 to the U.S. Patent Application Publication No. 2006/0254769 of pending trial simultaneously, attorney is TH2616) a kind of system disclosed, described system comprises: from the device of subsurface formations recovery of oil and/or gas, described oil and/or gas bag contain one or more sulphur compounds; To change into from least a portion sulphur compound of the oil of gathering and/or gas the device of carbon disulfide formulation; With the device that at least a portion carbon disulfide formulation is released in the stratum.U.S. Patent Application Publication No. 2006/0254769 is incorporated herein by this reference in full.
WO international publication number 03/095118A1 discloses a kind of by repair the method for carbon disulfide contaminated soil with iron contact soil.WO international publication number 03/095118A1 is incorporated herein by this reference in full.
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 reducing viscosity, chemical action and the miscible displacement of reservoir) enhanced oil recovery.This area also needs for the improved system of the solvent miscible displacement of reservoir and method.This area also need to be used for reclaiming improved system and the method for solvent after the miscible displacement of reservoir.After there is a need in the art for miscible solvent displacement of reservoir oil operation, the stratum is repaired.
Summary of the invention
In one aspect, the invention provides for producing oil from subsurface formations and/or the system of gas, described system comprises: be dispersed in the first well array on the stratum; Be dispersed in the second well array on the stratum; Wherein the first well array is included in the device that compatibility enhanced oil recovery preparation is injected in the very first time section stratum, and the second well array is included in and produces oil from the stratum in very first time section and/or the device of gas; In the second time period, at least a portion compatibility enhanced oil recovery preparation in the stratum is converted into the equipment of another kind of compound; Reclaim the equipment of the described another kind of compound of at least a portion in the 3rd time period.
In yet another aspect, the invention provides the method for the production of oil and/or gas, described method comprises: inject carbon disulfide formulation by the first well in very first time section in the stratum; Produce oil and/or gas from the stratum by the second well in very first time section; When produce oil from the stratum and/or gas when completing original position at least a portion carbon disulfide formulation is converted into another kind of compound; With reclaim the described another kind of compound of at least a portion from the stratum.
In yet another aspect, the invention provides the method for the production of oil and/or gas, described method comprises: inject compatibility enhanced oil recovery preparation by the first well in very first time section in the stratum; Produce oil and/or gas from the stratum by the second well in very first time section; When producing oil from the stratum and/or gas is converted into another kind of compound with at least a portion compatibility enhanced oil recovery preparation after completing in the stratum; With from the described another kind of compound of stratum production at least a portion.
Advantage of the present invention comprises following one or more:
Use solvent reinforcement from improved system and the method for stratum recovery of hydrocarbons.
Use contains the hydroenhancement of miscible solvent from improved system and the method for stratum recovery of hydrocarbons.
The improvement composition and/or the technology that are used for secondary recovery of hydrocarbons.
The improved system of enhanced oil recovery and method.
Use improved system and the method for miscible solvent enhanced oil recovery.
Use can with oil improved system and the method for miscible compound enhanced oil recovery on the spot.
Be used for to reclaim can with oil improved system and the method for miscible compound on the spot.
Be used for to repair utilized can with oil improved system and the method on the stratum of the miscible compound displacement of reservoir oil on the spot.
Description of drawings
Fig. 1 shows the production system of oil and/or gas.
Fig. 2 a shows well pattern.
Fig. 2 b and 2c show the well pattern of Fig. 2 a during improving the oil recovery process.
Fig. 3 a-3c shows the production system of oil and/or gas.
The specific embodiment
Fig. 2 a:
In some embodiments, with reference to figure 2a, wherein illustrate the array 200 of well.Array 200 comprises well group 202 (representing with horizon) and well group 204 (representing with diagonal).
Has horizontal range 230 between every mouthful of well in well group 202 and the adjacent well in well group 202.Has vertical distance 232 between every mouthful of well in well group 202 and the adjacent well in well group 202.
Has horizontal range 236 between every mouthful of well in well group 204 and the adjacent well in well group 204.Has vertical distance 238 between every mouthful of well in well group 204 and the adjacent well in well group 204.
Has distance 234 between every mouthful of well in well group 202 and the adjacent well in well group 204.Has distance 234 between every mouthful of well in well group 204 and the adjacent well in well group 202.
Every mouthful of well in well group 202 can by 4 mouthfuls of wells in well group 204 institutes around.Every mouthful of well in well group 204 can by 4 mouthfuls of wells in well group 202 institutes around.
Vertical distance 238 can be about approximately 1000 meters of 5-, or about approximately 500 meters of 10-, or about approximately 250 meters of 20-, or about approximately 200 meters of 30-, or about approximately 150 meters of 50-, or about approximately 120 meters of 90-, or approximately 100 meters.
The array 200 of well can have approximately approximately 1000 mouthfuls of wells of 10-, about about 500 mouthfuls of wells of 5-in well group 202 for example, and about about 500 mouthfuls of wells of 5-in well group 204.
The array 200 of well can be regarded well group 202 and well group 204 as the top view of the peupendicular hole at interval on a slice soil.The array 200 of well can be regarded well group 202 and well group 204 as the side cross-sectional view of the horizontal well at interval in the stratum.
Can complete from subsurface formations recovery of oil and/or gas with the array 200 of well by any known method.The method that is fit to comprises subsea production, surface production, first, secondary or produce for three times.Not crucial to being used for from the choosing of method of subsurface formations recovery of oil and/or gas.
Fig. 2 b:
In some embodiments, with reference to figure 2b, wherein illustrate the array 200 of well.Array 200 comprises well group 202 (representing with horizon) and well group 204 (representing with diagonal).
In some embodiments, the agent of compatibility enhanced oil recovery can be injected well group 204, and can be from well group 202 recovery of oil.As shown in the figure, the agent of compatibility enhanced oil recovery has the distribution of injection 208, and oil recovery profile 206 outputs are to well group 202.
The agent of compatibility enhanced oil recovery can be injected well group 202, and can be from well group 204 recovery of oil.As shown in the figure, the agent of compatibility enhanced oil recovery has the distribution of injection 206, and oil recovery profile 208 outputs are to well group 204.
Can carry out a plurality of cycles, its be included in inject compatibility enhanced oil recovery agent and from the stratum produce oil and/or gas between well group 202 and 204 alternately, wherein in the very first time section well group can be used for injecting and another well group can for the production of, and subsequently within the second time period with they exchanges.
Cycle can be approximately 12 hours-Yue 1 year, or approximately 3 days-Yue 6 months, or approximately 5 days-Yue 3 months.Each cycle can increase the time, and for example each cycle can be about than the cycle before 5%-approximately 10%, for example be about 8%.
Inject compatibility enhanced oil recovery agent in the time of can be initial in the cycle or contain the mixture of compatibility enhanced oil recovery agent, and can inject the agent of unmixability enhanced oil recovery when end cycle or contain the mixture of unmixability enhanced oil recovery agent.Cycle is initial can be the cycle at first 10%-approximately 80%, the at first 20%-in cycle approximately 60% or the at first 25%-in cycle approximately 40%, and end cycle can be the remainder in cycle.
Fig. 2 c:
In some embodiments, with reference to figure 2c, wherein illustrate the array 200 of well.Array 200 comprises well group 202 (representing with horizon) and well group 204 (representing with diagonal).
The agent of compatibility enhanced oil recovery can be injected well group 204, and can be from well group 202 recovery of oil.As shown in the figure, the agent of compatibility enhanced oil recovery has and inject to distribute 208, and injecting distributes 208 has overlapping 210 with oil recovery profile 206, and oil recovery profile 206 outputs are to well group 202.
The agent of compatibility enhanced oil recovery can be injected well group 202, and can be from well group 204 recovery of oil.As shown in the figure, the agent of compatibility enhanced oil recovery has and inject to distribute 206, and injecting distributes 206 has overlapping 210 with oil recovery profile 208, and oil recovery profile 208 outputs are to well group 204.
206 the agent of compatibility enhanced oil recovery is reclaimed to return to well group 202 in order to distribute by injection, can completing after well group 204 recovery of oil, renovation agent be injected well group 204.The renovation agent that is fit to is discussed hereinafter.
In order to clear up the stratum after mixed phase oil drives, can original position the agent of compatibility enhanced oil recovery be converted into another kind of compound within injection distribution 206, then can reclaim another kind of compound.The suitable method that is used for the agent of conversion compatibility enhanced oil recovery is discussed below.
Fig. 3 a and 3b:
In some embodiments of the present invention, with reference to figure 3a and 3b, wherein illustrate system 300.System 300 comprises subsurface formations 302, subsurface formations 304, subsurface formations 306 and subsurface formations 308.Facility 310 can provide on the ground.Well 312 passes stratum 302 and 304, and in stratum 306, perforate is arranged.That the part 314 on stratum 306 may optionally be fracture and/or porous.In first production, from stratum 306 oily gentle can output to part 314, enter in well 312, and travel up to facility 310.Subsequently, facility 310 makes gas and fluid separation applications, and described gas can be delivered to gas processer 316, and described liquid can be delivered to liquid memory 318.Facility 310 also comprises compatibility oil recovery formulation storage 330.As shown in Fig. 3 a, compatibility enhanced oil recovery preparation can be by the pumping downwards and being pumped in stratum 306 in well 312 of the downward arrow of diagram.Can stay compatibility enhanced oil recovery preparation to soak approximately 1 hour-Yue 15 days, about 5-approximately 50 hours for example in the stratum.
After immersion, as shown in Fig. 3 b, can make subsequently the compatibility enhanced oil recovery preparation that produces and oil and/or gas increase by well 312 and turn back to facility 310.Facility 310 can be suitable for separating and/or circulation compatibility enhanced oil recovery preparation, for example by making preparation boiling, condensation, filtration or reaction, for example subsequently preparation is re-injected in well 312 by repeating approximately 2-approximately 5 times of the soak cycle shown in Fig. 3 a and 3b.
In some embodiments, can be lower than under formation fracture pressure, during the approximately 40%-of for example fracture pressure approximately is pumped to stratum 306 with compatibility enhanced oil recovery preparation 90% time.
The well 312 on the injection stratum 306 shown in Fig. 3 a can represent the well of well group 202, and 306 wells 312 of producing from the stratum shown in Fig. 3 b can represent the well well group 204.
The well 312 that injects stratum 306 as shown in Fig. 3 a can represent the well of well group 204, and 306 wells 312 of producing from the stratum as shown in Fig. 3 b can represent the well well group 202.
In order 306 the agent of compatibility enhanced oil recovery to be reclaimed to be back to well 312 from the stratum, can completing after 306 recovery of oil of stratum, renovation agent be injected another adjacent well (not shown).The renovation agent that is fit to is discussed hereinafter.
In order to clear up the stratum after mixed phase oil drives, can original position the agent of compatibility enhanced oil recovery be converted into another kind of compound within stratum 306, then can reclaim another kind of compound from well 312.The suitable method that is used for the agent of conversion compatibility enhanced oil recovery is discussed below.
Fig. 3 c:
In some embodiments of the present invention, with reference to figure 3c, wherein illustrate system 400.System 400 comprises subsurface formations 402, stratum 404, stratum 406 and stratum 408.Production facility 410 can provide on the ground.Well 412 passes stratum 402 and 404, and there is perforate at 406 places on the stratum.That the part 414 on stratum may optionally be fracture and/or porous.When oil gentle during from stratum 406 output, its entering part 414, and travel up to production facility 410 by well 412.Separable gas and liquid can be delivered to gas gas reservoir 416 and liquid can be delivered to liquid memory 418.Compatibility enhanced oil recovery preparation can be produced and/or store to production facility 410, and described compatibility enhanced oil recovery preparation can output and storage in production/holder 430.The in the future hydrogen sulfide of artesian well 412 and/or production/holder 430 that other sulfur-containing compound is delivered to compatibility enhanced oil recovery preparation.Can compatibility enhanced oil recovery preparation be pumped down to by well 432 part 434 on stratum 406.It is gentle with auxiliary output oil that compatibility enhanced oil recovery preparation passes stratum 406, and can make subsequently compatibility enhanced oil recovery preparation, oil and/or the whole outputs of gas to well 412 flow to production facility 410.Subsequently can be for example by making preparation boiling, condensation, filtration or reaction, afterwards preparation re-injected in well 432, thereby circulation compatibility enhanced oil recovery preparation.
In some embodiments, can be with in a certain amount of compatibility enhanced oil recovery preparation or the compatibility enhanced oil recovery that mixes with other component preparation Injection Well 432, inject subsequently another component (air for example; The water of gas or liquid form; The water that mixes with one or more salt, polymer and/or surfactant; Carbon dioxide; Other gas; Other liquid; And/or their mixture) pass through stratum 406 with the compatibility enhanced oil recovery preparation that orders about compatibility enhanced oil recovery preparation or mix with other component.
In some embodiments, produce oil and/or the well 412 of gas can represent well in well group 202, and the well 432 that is used for injecting compatibility enhanced oil recovery preparation can represent the well of well group 204.
In some embodiments, produce oil and/or the well 412 of gas can represent well in well group 204, and the well 432 that is used for injecting compatibility enhanced oil recovery preparation can represent the well of well group 202.
In order 406 the agent of compatibility enhanced oil recovery to be reclaimed to be back to well 432 from the stratum, can complete after stratum 406 and well 412 recovery of oil, in renovation agent Injection Well 412.The renovation agent that is fit to is discussed hereinafter.
In order to clear up the stratum after mixed phase oil drives, can original position the agent of compatibility enhanced oil recovery be converted into another kind of compound within stratum 406, then the 406 another kind of compounds of recovery from the stratum.The suitable method that is used for the agent of conversion compatibility enhanced oil recovery is discussed below.
Renovation agent:
The renovation agent that is fit to comprises water, foam, aqueous surfactant solution, aqueous polymers solution, carbon dioxide, natural gas and/or other hydrocarbon and their mixture of liquid or steam form.
In one embodiment, the renovation agent that is fit to comprises aqueous surfactant solution.the aqueous surfactant solution that is fit to is disclosed in U.S. Patent No. 3,943,160, U.S. Patent No. 3,946,812, U.S. Patent No. 4,077,471, U.S. Patent No. 4,216,079, U.S. Patent No. 5,318,709, U.S. Patent No. 5,723,423, U.S. Patent No. 6,022,834, U.S. Patent No. 6,269,881 and the people's such as Wellington " LowSurfactant Concentration Enhanced Waterflooding ", Society ofPetroleum Engineers, in 1995, above-mentioned document is quoted through this and is all incorporated this paper into.
As mentioned above, renovation agent can be introduced after the miscible solvent oil displacement process is completed in the stratum to produce miscible solvent as much as possible.
Converted in-situ:
In some embodiments, after the oil recovery operation that strengthens is completed and after the optional renovation agent displacement of reservoir oil operates in the stratum remaining any miscible solvent can be converted into different compounds by original position (in the stratum).
The formation of hydrogen sulfide:
In an example, miscible solvent can comprise carbon disulfide formulation.This carbon disulfide can for example be hydrolyzed into hydrogen sulfide by adding oxygen, water, steam, peroxide and/or heat in the stratum.Alternatively, such as one or more catalyzer of alumina and/or titanium dioxide can be for example in solution, be incorporated into the stratum as powder or as the suspension in water or other fluid, the reaction with catalysis from carbon disulfide to hydrogen sulfide.
Carbon disulfide can be converted into hydrogen sulfide by any reaction or mechanism.Selection to reaction or mechanism is not crucial.Making carbon bisulfide hydrolytic become a kind of suitable mechanism of hydrogen sulfide is known reaction, and it has reaction equation:
CS
2+ 2H
2O → 2H
2S+CO
2(formula 1)
Then, hydrogen sulfide can be from reclaiming flatly or many mouthfuls of wells.In order to reclaim hydrogen sulfide from the stratum, water, air, carbon dioxide or one or more other liquid or gas or renovation agent can be injected in the stratum, to help to reclaim hydrogen sulfide from well.
Oxidation reaction:
In an example, miscible solvent can comprise alcohol and/or such as the hydrocarbon of natural gas, propane, butane and/or pentane.This miscible solvent can be for example by add oxygen, steam, peroxide and/or heat in the stratum combustion (of oil) insitu for being mainly water and carbon dioxide.
In another example, miscible solvent can comprise carbon disulfide formulation.This carbon disulfide can for example burn in the stratum or be oxidized to sulfur dioxide by adding oxygen, peroxide and/or heat.
Carbon disulfide can be by any reaction or mechanism oxidation.Selection to reaction or mechanism is not crucial.A kind of suitable mechanism that makes carbon disulfide be oxidized to sulfur dioxide is known reaction, and it has reaction equation:
CS
2+ 3O
2→ 2SO
2+ CO
2(formula 2)
Then, sulfur dioxide can be from reclaiming flatly or many mouthfuls of wells.In order to reclaim sulfur dioxide from the stratum, water, air, carbon dioxide or one or more other liquid or gas or renovation agent can be injected in the stratum, to help to reclaim sulfur dioxide from well.
Replace embodiment:
In some embodiments, can be with oil and/or gas from well be gathered on the stratum, and make it flow through well and flow line to facility.In some embodiments, can by use reagent for example steam, water, surfactant, polymer flooding oil substances and/or miscible agent for example the enhanced oil recovery of carbon disulfide formulation and/or carbon dioxide to strengthen from the oil on stratum and/or flowing of gas.
The oil of gathering from the stratum in some embodiments, and/or gas may contain sulphur compound.Sulphur compound may comprise disulphide or for example thiophene, benzothiophene or replacement and the heterocyclic sulfur compounds of condensed ring dibenzothiophenes or their mixture outside hydrogen sulfide, mercaptan, sulfide and disulfides other than hydrogen.
In some embodiments, the sulphur compound from the stratum can be changed into carbon disulfide formulation.Can at least a portion sulphur compound be changed into carbon disulfide formulation by any known method.The method that is fit to can comprise the sulphur compound oxidation reaction is become sulphur and/or sulfur dioxide, and makes sulphur and/or sulfur dioxide and carbon and/or carbon compound react to form carbon disulfide formulation.Not crucial for the selection that at least a portion sulphur compound is changed into the method for carbon disulfide formulation.
In some embodiments, the compatibility enhanced oil recovery reagent that is fit to can be carbon disulfide formulation.Carbon disulfide formulation can comprise carbon disulfide and/or carbon disulfide derivatives, for example sulfocarbonate, xanthate and their mixture; With one or more optional following materials: hydrogen sulfide, sulphur, carbon dioxide, hydrocarbon and their mixture.
In some embodiments, the attorney of submitting on April 19th, 2006 is TH2616, the method that discloses suitable production carbon disulfide formulation when sequence number is 11/409,436 in the pending trial U.S. Patent application.Sequence number is that 11/409,436 U.S. Patent application is incorporated this paper into through this incorporated.
In some embodiments, the compatibility enhanced oil recovery reagent that is fit to comprises mixture or other compatibility enhanced oil recovery reagent as known in the art of carbon disulfide, hydrogen sulfide, carbon dioxide, octane, pentane, LPG, C2-C6 aliphatic hydrocarbon, nitrogen, diesel oil, petroleum solvent, naphtha (naptha) solvent, asphalt solution, kerosene, acetone, dimethylbenzene, trichloroethanes or two or more aforementioned substances.In some embodiments, the compatibility enhanced oil recovery reagent that is fit to be with the stratum in oil contact compatibility for the first time or the multiple-contact compatibility.
In some embodiments, the unmixability enhanced oil recovery reagent that is fit to comprises water, the air of gas or liquid form, mixture or other unmixability enhanced oil recovery reagent as known in the art of two or more aforementioned substances.In some embodiments, the unmixability enhanced oil recovery reagent that is fit to and the oil in the stratum be not contact for the first time compatibility or the multiple-contact compatibility.
In some embodiments, can reclaim unmixability and/or the compatibility enhanced oil recovery reagent that injects the stratum from the oil of output and/or gas, and it is re-injected in the stratum.
In some embodiments, the oil viscosity that the stratum exists before injecting any enhanced oil recovery reagent is at least about 100 centipoises, or at least about 500 centipoises, or at least about 1000 centipoises, or at least about 2000 centipoises, or at least about 5000 centipoises, or at least about 10,000 centipoises.In some embodiments, the oil viscosity that the stratum exists before injecting any enhanced oil recovery reagent is about 5,000,000 centipoise at the most, or about 2,000,000 centipoise at the most, or about 1,000,000 centipoise at the most, or about 500,000 centipoises at the most.
Can use any known method to complete and discharge at least a portion compatibility enhanced oil recovery reagent and/or other liquid and/or gas.A kind of suitable method is compatibility enhanced oil recovery preparation to be injected the independent conduit of individual well, soaks carbon disulfide formulation, and pumps subsequently at least a portion carbon disulfide formulation and gas and/or liquid.Another method that is fit to is that compatibility enhanced oil recovery preparation is injected the first well, and goes out at least a portion compatibility enhanced oil recovery preparation and gas and/or liquid by the second well pump.The selection that is used for the method for injection at least a portion compatibility enhanced oil recovery preparation and/or other liquid and/or gas is not crucial.
In some embodiments, in can be under the pressure of formation fracture pressure at the most compatibility enhanced oil recovery preparation and/or other liquid and/or gas pump being sent into the stratum.
In some embodiments, compatibility enhanced oil recovery preparation can be mixed in oil in the stratum and/or gas the mixture that can gather from well to form.In some embodiments, can with in a certain amount of compatibility enhanced oil recovery preparation Injection Well, follow subsequently another component and pass the stratum to drive the carbon preparation.For example can using, water, carbon dioxide, other gas, other liquid and/or their mixture of air, liquid or steam form pass the stratum to drive compatibility enhanced oil recovery preparation.
In some embodiments, can heat compatibility enhanced oil recovery preparation to reduce the viscosity of stratum fluid (such as heavy oil, alkane, asphalitine etc.) before injecting the stratum.
In some embodiments, can use fluid or heater after heating heat in the stratum and/or boil compatibility enhanced oil recovery preparation to reduce the viscosity of fluid in the stratum.In some embodiments, can use water after heating and/or steam with the compatibility enhanced oil recovery preparation in heating and/or gasification stratum.
In some embodiments, can use heater to heat in the stratum and/or boil compatibility enhanced oil recovery preparation.The attorney of submitting on October 24th, 2003 is TH2557, disclose a kind of suitable heater when sequence number is 10/693,816 in the pending trial U.S. Patent application.Sequence number is that 10/693,816 U.S. Patent application is incorporated this paper into through this incorporated.
In some embodiments, oil and/or the gas of producing can be delivered to refinery and/or treatment facility.Can process oil and/or gas to produce commercial product, for example transport fuel such as gasoline and diesel oil, domestic fuel oil, sliding agent, chemicals and/or polymer.Processing can comprise that distillation and/or distillate oil and/or gas are to produce one or more distillate cuts.In some embodiments, can carry out following one or more processing to oil and/or gas and/or one or more distillate cuts: catalytic cracking, hydrocracking, hydrotreatment, coking, thermal cracking, distillation, reformation, polymerization, isomerization, alkylation, blend and dewaxing.
Exemplary:
In one embodiment of the invention, disclose and be used for producing oil and/or the system of gas from subsurface formations, described system comprises: be dispersed in the first well array on the stratum; Be dispersed in the second well array on the stratum; Wherein the first well array is included in the device that compatibility enhanced oil recovery preparation is injected in the very first time section stratum, and the second well array is included in and produces oil from the stratum in very first time section and/or the device of gas; In the second time period, at least a portion compatibility enhanced oil recovery preparation in the stratum is converted into the equipment of another kind of compound; Reclaim the equipment of the described another kind of compound of at least a portion in the 3rd time period.In some embodiments, 10 meters-1 kms of one or more adjacent well in the second well array of the well spacing in the first well array.In some embodiments, subsurface formations is under water body.In some embodiments, after described system is also included within and compatibility enhanced oil recovery preparation is released in the stratum, unmixability enhanced oil recovery preparation is injected the device on stratum.In some embodiments, described system also comprises the compatibility enhanced oil recovery preparation that is selected from carbon disulfide formulation, hydrogen sulfide, carbon dioxide, octane, pentane, LPG, C2-C6 aliphatic hydrocarbon, nitrogen, diesel oil, petroleum solvent, diluent naphtha, asphalt solution, kerosene, acetone, dimethylbenzene, trichloroethanes and their mixture.In some embodiments, described system also comprises the unmixability enhanced oil recovery preparation of the water, air and their mixture that are selected from gas or liquid form.In some embodiments, the first well array comprises 5-500 mouth well, and the second well array comprises 5-500 mouth well.In some embodiments, described system also comprises the compatibility enhanced oil recovery preparation that contains carbon disulfide formulation.In some embodiments, described system also comprises the device for the production of carbon disulfide formulation.In some embodiments, it is 100-5 that subsurface formations comprises viscosity, the oil of 000,000 centipoise.In some embodiments, the first well array comprises the compatibility oil recovery formulation profile in the stratum, comprise that with the second well array oil recovery profile in the stratum, described system are included in overlapping between compatibility oil recovery formulation profile and oil recovery profile in addition.In some embodiments, compatibility enhanced oil recovery preparation comprises carbon disulfide.In some embodiments, another kind of compound comprises hydrogen sulfide.In some embodiments, the equipment that be used for to reclaim the described another kind of compound of at least a portion comprise be used to collect another kind of compound and should the another kind compound from be transported to the well of the position on the stratum in the stratum.In some embodiments, the equipment that be used for to reclaim the described another kind of compound of at least a portion comprise for renovation agent is injected in the stratum with should the another kind compound from the stratum towards flatly or the wells of many mouthfuls of other well displacements.
In one embodiment of the invention, disclose a kind of method for the production of oil and/or gas, described method comprises: inject carbon disulfide formulation by the first well in very first time section in the stratum; Produce oil and/or gas from the stratum by the second well in very first time section; When produce oil from the stratum and/or gas when completing original position at least a portion carbon disulfide formulation is converted into another kind of compound; With reclaim the described another kind of compound of at least a portion from the stratum.In some embodiments, reclaim if described method also comprises the carbon disulfide formulation that exists from oil and/or gas, and the carbon disulfide formulation that subsequently at least a portion is reclaimed is injected the stratum.In some embodiments, inject carbon disulfide formulation and comprise with the form of mixtures of following material, at least a portion carbon disulfide formulation being injected the stratum: the sulphur compound outside one or more hydrocarbon, carbon disulfide, carbon dioxide, carbon monoxide or their mixture.In some embodiments, described method is also included within and carbon disulfide formulation is injected before the stratum or during on the stratum, heated carbon disulfide formulation when carbon disulfide formulation.In some embodiments, measured before injecting beginning when carbon disulfide, carbon disulfide formulation is injected under the pressure of 000 kPa higher than initial reservoir pressure 0-37.In some embodiments, subsurface formations comprises the permeability of 0.0001-15 darcy, for example the permeability of 0.001-1 darcy.In some embodiments, before injecting carbon disulfide formulation, the sulfur content of any oil that exists in subsurface formations is 0.5%-5%, for example 1%-3%.In some embodiments, described method comprises also that oil that at least a portion is reclaimed and/or cyclostrophic change into and is selected from for example material of gasoline and diesel oil, domestic fuel oil, sliding agent, chemicals and/or polymer of transport fuel.In some embodiments, described method also comprises: by the second well, renovation agent is injected the stratum within the second time period; With produce described another kind of compound from the stratum by the first well within the second time period.In some embodiments, renovation agent comprises the material that is selected from water, water and surfactant, carbon dioxide, air and natural gas.In some embodiments, renovation agent comprises the polymer that dissolves in water and water.In some embodiments, at least a portion carbon disulfide formulation being converted into another kind of compound comprises at least a being injected in the stratum in steam, water and peroxide.
In one embodiment of the invention, disclose a kind of method for the production of oil and/or gas, described method comprises: inject compatibility enhanced oil recovery preparation by the first well in very first time section in the stratum; Produce oil and/or gas from the stratum by the second well in very first time section; When producing oil from the stratum and/or gas is converted into another kind of compound with at least a portion compatibility enhanced oil recovery preparation after completing in the stratum; From the described another kind of compound of stratum production at least a portion.In some embodiments, described method is also included within very first time section in a period of time afterwards, by the first well, unmixability enhanced oil recovery preparation is injected the stratum, passes through the stratum to promote compatibility enhanced oil recovery preparation.In some embodiments, the oil of generation and/or gas bag sulfur-containing compound, described method comprises in addition at least a portion sulphur compound is changed into compatibility enhanced oil recovery preparation.In some embodiments, compatibility enhanced oil recovery preparation comprises carbon disulfide formulation.In some embodiments, described another kind of compound comprises hydrogen sulfide.In some embodiments, the method also comprises the described compatibility enhanced oil recovery preparation of heating.In some embodiments, described method also comprises: inject renovation agent by the second well in the second period in the stratum in section; With produce described another kind of compound from the stratum by the first well within the second time period.In some embodiments, renovation agent comprises at least a in water and carbon dioxide.
It will be understood by those skilled in the art that under the prerequisite of the spirit and scope that do not depart from disclosed embodiments of the present invention, structure, materials and methods, can carry out numerous modifications and variations to them.Therefore, the scope of this paper claims and their function equivalent should not described with illustrated specific embodiments by this paper and limit, because these specific embodiments are only exemplary in essence.
Claims (27)
1. one kind is used for producing oil and/or the system of gas from subsurface formations, and described system comprises:
Be dispersed in the first well array on the stratum;
Be dispersed in the second well array on the stratum;
Wherein the first well array is included in the device that compatibility enhanced oil recovery preparation is injected in the very first time section stratum, and the second well array is included in and produces oil from the stratum in very first time section and/or the device of gas;
In the second time period, at least a portion compatibility enhanced oil recovery preparation in the stratum is converted into the equipment of another kind of compound;
Reclaim the equipment of the described another kind of compound of at least a portion in the 3rd time period.
2. the system of claim 1, wherein 10 meters-1 kms of one or more adjacent well in the second well array of the well spacing in the first well array.
3. the system of claim 1, wherein subsurface formations is under water body.
4. the system of claim 1, also be included in the device that after compatibility enhanced oil recovery preparation being released in the stratum, unmixability enhanced oil recovery preparation is injected the stratum.
5. the system of claim 1, also comprise the compatibility enhanced oil recovery preparation that is selected from carbon disulfide formulation, hydrogen sulfide, carbon dioxide, octane, pentane, LPG, C2-C6 aliphatic hydrocarbon, nitrogen, diesel oil, petroleum solvent, diluent naphtha, asphalt solution, kerosene, acetone, dimethylbenzene, trichloroethanes and their mixture.
6. the system of claim 4 also comprises the unmixability enhanced oil recovery preparation of the water, air and their mixture that are selected from gas or liquid form.
7. the system of claim 1, wherein, the first well array comprises 5-500 mouth well, and the second well array comprises 5-500 mouth well.
8. the system of claim 1, also comprise the compatibility enhanced oil recovery preparation that contains carbon disulfide formulation.
9. the system of claim 8, also comprise the device for the production of carbon disulfide formulation.
10. the system of claim 1, wherein to comprise viscosity be 100-5 to subsurface formations, the oil of 000,000 centipoise.
11. the system of claim 1, wherein, the first well array comprises the compatibility oil recovery formulation profile in the stratum, and the second well array comprises the oil recovery profile in the stratum, and described system is included in overlapping between compatibility oil recovery formulation profile and oil recovery profile in addition.
12. the system of claim 1, wherein, compatibility enhanced oil recovery preparation comprises carbon disulfide.
13. the system of claim 1, wherein, another kind of compound comprises hydrogen sulfide.
14. the system of claim 1, wherein, the equipment that be used for to reclaim the described another kind of compound of at least a portion comprise be used to collect another kind of compound and should the another kind compound from be transported to the well of the position on the stratum in the stratum.
15. the system of claim 1, wherein, the equipment that be used for to reclaim the described another kind of compound of at least a portion comprise for renovation agent is injected in the stratum with should the another kind compound from the stratum towards flatly or the wells of many mouthfuls of other well displacements.
16. the method for the production of oil and/or gas, described method comprises:
Inject carbon disulfide formulation by the first well in very first time section in the stratum;
Produce oil and/or gas from the stratum by the second well in very first time section;
When produce oil from the stratum and/or gas when completing original position at least a portion carbon disulfide formulation is converted into another kind of compound; With
Reclaim the described another kind of compound of at least a portion from the stratum.
17. the method for claim 16, if also comprise the carbon disulfide formulation that reclaims existence from oil and/or gas, and the carbon disulfide formulation that subsequently at least a portion is reclaimed is injected the stratum.
18. the method for claim 16, wherein, inject carbon disulfide formulation and comprise with the form of mixtures of following material, at least a portion carbon disulfide formulation being injected the stratum: the sulphur compound outside one or more hydrocarbon, carbon disulfide, carbon dioxide, carbon monoxide or their mixture.
19. the method for claim 16 also is included in and carbon disulfide formulation is injected before the stratum or during on the stratum, heated carbon disulfide formulation when carbon disulfide formulation.
20. the method for claim 16 wherein, was measured before injecting beginning when carbon disulfide, carbon disulfide formulation is injected under the pressure of 000 kPa higher than initial reservoir pressure 0-37.
21. the method for claim 16, wherein, subsurface formations comprises the permeability of 0.0001-15 darcy.
22. the method for claim 16, wherein, before injecting carbon disulfide formulation, the sulfur content of any oil that exists in subsurface formations is 0.5%-5%.
23. the method for claim 16 comprises that also oil and/or cyclostrophic that at least a portion is reclaimed change into transport fuel.
24. the method for claim 16 also comprises:
By the second well, renovation agent is injected the stratum within the second time period; With
Produce described another kind of compound from the stratum by the first well within the second time period.
25. the method for claim 24, wherein, renovation agent comprises the material that is selected from water, water and surfactant, carbon dioxide, air and natural gas.
26. the method for claim 24, wherein, renovation agent comprises the polymer that dissolves in water and water.
27. the method for claim 16 wherein, is converted into another kind of compound with at least a portion carbon disulfide formulation and comprises at least a being injected in the stratum in steam, water and peroxide.
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| US60/988,844 | 2007-11-19 | ||
| PCT/US2008/083843 WO2009067418A1 (en) | 2007-11-19 | 2008-11-18 | Systems and methods for producing oil and/or gas |
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| CN101861444A CN101861444A (en) | 2010-10-13 |
| CN101861444B true CN101861444B (en) | 2013-11-06 |
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| CN (1) | CN101861444B (en) |
| CA (1) | CA2705198A1 (en) |
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2008
- 2008-11-18 CN CN200880116622.3A patent/CN101861444B/en not_active Expired - Fee Related
- 2008-11-18 WO PCT/US2008/083843 patent/WO2009067418A1/en active Application Filing
- 2008-11-18 US US12/743,314 patent/US20110108269A1/en not_active Abandoned
- 2008-11-18 CA CA2705198A patent/CA2705198A1/en not_active Abandoned
- 2008-11-18 RU RU2010125278/03A patent/RU2494233C2/en not_active IP Right Cessation
Also Published As
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|---|---|
| US20110108269A1 (en) | 2011-05-12 |
| CA2705198A1 (en) | 2009-05-28 |
| RU2010125278A (en) | 2011-12-27 |
| WO2009067418A1 (en) | 2009-05-28 |
| CN101861444A (en) | 2010-10-13 |
| RU2494233C2 (en) | 2013-09-27 |
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