CN1932237A - Flue gas injection for heavy oil recovery - Google Patents

Flue gas injection for heavy oil recovery Download PDF

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Publication number
CN1932237A
CN1932237A CNA2006100081678A CN200610008167A CN1932237A CN 1932237 A CN1932237 A CN 1932237A CN A2006100081678 A CNA2006100081678 A CN A2006100081678A CN 200610008167 A CN200610008167 A CN 200610008167A CN 1932237 A CN1932237 A CN 1932237A
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CN
China
Prior art keywords
flue gas
gas
rock stratum
pitch
fuel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CNA2006100081678A
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Chinese (zh)
Other versions
CN1932237B (en
Inventor
史蒂夫·克雷丝乃克
加里·布尼欧
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KORTA ENGINEERING Co Ltd
PARAMOUNT RESOURCE CO Ltd
Diamond QC Technologies Inc
Original Assignee
Diamond QC Technologies Inc
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Filing date
Publication date
Priority to CA002505449A priority Critical patent/CA2505449C/en
Priority to CA2,505,449 priority
Application filed by Diamond QC Technologies Inc filed Critical Diamond QC Technologies Inc
Publication of CN1932237A publication Critical patent/CN1932237A/en
Application granted granted Critical
Publication of CN1932237B publication Critical patent/CN1932237B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/16Enhanced recovery methods for obtaining hydrocarbons
    • E21B43/164Injecting CO2 or carbonated water
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/16Enhanced recovery methods for obtaining hydrocarbons
    • E21B43/24Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/58Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G1/00Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
    • C10G1/04Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal by extraction
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B41/00Equipment or details not covered by groups E21B15/00 - E21B40/00
    • E21B41/005Waste disposal systems
    • E21B41/0057Disposal of a fluid by injection into a subterranean formation
    • E21B41/0064Carbon dioxide sequestration
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/16Enhanced recovery methods for obtaining hydrocarbons
    • E21B43/166Injecting a gaseous medium; Injecting a gaseous medium and a liquid medium
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/16Enhanced recovery methods for obtaining hydrocarbons
    • E21B43/166Injecting a gaseous medium; Injecting a gaseous medium and a liquid medium
    • E21B43/168Injecting a gaseous medium
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/16Enhanced recovery methods for obtaining hydrocarbons
    • E21B43/18Repressuring or vacuum methods
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/16Enhanced recovery methods for obtaining hydrocarbons
    • E21B43/24Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
    • E21B43/2406Steam assisted gravity drainage [SAGD]
    • E21B43/2408SAGD in combination with other methods
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B33/00Steam-generation plants, e.g. comprising steam boilers of different types in mutual association
    • F22B33/18Combinations of steam boilers with other apparatus
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02CCAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00Capture or disposal of greenhouse gases
    • Y02C20/40Capture or disposal of greenhouse gases of CO2
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P30/00Technologies relating to oil refining and petrochemical industry
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/70Combining sequestration of CO2 and exploitation of hydrocarbons by injecting CO2 or carbonated water in oil wells

Abstract

A variety of methods for thermal recovery of natural gas and bitumen from a formation containing the latter. In general, the methods incorporate a series of existing, but previously uncombined technologies. A modified flue gas from the steam generators conventionally used in a SAGD recovery operation is injected into the formation to enhance recovery with the produced fluids, natural gas, bitumen, inter alia are further processed. The injection of the flue gas conveniently is disposed of and further acts to repressurize the formation which otherwise becomes depressurized when depleted of natural gas. Accordingly, environmental and economic advantages are realized with the methodology.

Description

The flue gas that is used for heavy oil recovery injects
Technical field
The present invention relates to utilize in subterranean strata, inject flue gas from the rock stratum hot extraction value.
Background technology
In heavy oil industry, very wide classification is arranged for heavy oil.These classification are based on the viscosity and the density of material basically, and are divided into following a few class usually:
I) heavy oil in
25°>°API>18°
Can flow under the 100cP>μ>10cP, storage condition
Ii) extra heavy oil
20°>°API>12°
10000cP>μ>100cP need comprise that the storage driving is infused in interior production enhancing technology as heat or water/solvent
Iii) oil-sand and pitch
12 ° of>° API>6 ° need to excavate or heat is driven
μ>10000cP need comprise that the storage driving is infused in interior exploitation enhancing technology as heat or heat/solvent.
In view of may be in Canada, Central America, Russia, China and the world huge heavy oil of existing of other area and the known value of pitch reserves, various complete extractions and treatment technology have appearred.
At present, existing pitch and extra heavy oil storage are to use improved thermal recovery technology to exploit, and cause recovery ratio between 20-25%.Prevailing thermal recovery technology is that steam injects, and wherein the heat content from steam is passed to oil by condensation.Certainly, thus this can reduce oil viscosity and makes and can carry out gravity flood and collection.Injection can be driven (CSS) by known cyclic steam, be handled up and SAGD oil (SAGD).
Although SAGD is used just more and more widely, still there is several places deficiency of relevant efficient aspect in it.One is caused the aspect of huge cost is exactly the fuel that is used to drive the steam generator that produces steam in jection.Optimal fuel is natural gas, but its expense can significantly reduce whole efficiency, and this problem is also mixed with all can discharge the fact of the greenhouse gases (GHG) of different amounts in the steam generator running that uses any hydrocarbon fuel.For example, can produce the carbon dioxide of 8000-15000 metric ton about every day for the pitch that obtains steam in jection and acquisition 100000BOPD.
Another problem of SAGD method is for improving the required upgrading of value of the product that is obtained.
Briefly mention as top institute, another factor that influences SAGD is that recovery ratio is limited.
For improving described some restriction, the someone has proposed to use the substitute fuel outside the natural gas, to reduce the influence that natural gas constantly increases at least.Be presented to the US6 of Warchol on March 11st, 2003, disclose a kind of suitable fuel of manipulating for SAGD in 530,965.The document has been instructed the pre-dispersed residual oil of preparing in a kind of aqueous matrix, and its incendivity is as substitute fuel.
Consider the problem that prior art exists, still expectation obtains efficient that a kind of method improves the SAGD operation, reduces the formation of excessive GHG and by providing a kind of substitute fuel with hot property of natural gas to reduce cost.
Summary of the invention
The present invention has all desired characteristics and advantages that are celebrated with the green environmental sound technology of energy efficiency height, high yield.
One aspect of the present invention is to provide a kind of improved more high efficiency thermal recovery technology that has.
Being on the other hand an of embodiment provide a kind of from the subterranean strata that contains heavy oil and pitch the method for exploitation heavy oil and pitch, comprising: a kind of fuel is provided; Combustion fuel is used to inject the injection flue gas of rock stratum with generation in the flue gas recirculation loop; With flue gas is injected the rock stratum with displacement heavy oil and pitch.
Another aspect of one embodiment of the invention is to provide a kind of method of exploiting heavy oil and pitch from the subterranean strata that contains heavy oil and pitch, comprising: a kind of fuel is provided; Combustion fuel is used to inject the flue gas of rock stratum with generation in the flue gas recirculation loop; With flue gas is injected the rock stratum with the displacement heavy oil, pitch and natural gas.
Description of drawings
After so probably having described the present invention, present invention is described with reference to the accompanying drawing that preferred embodiment is described below, wherein:
Fig. 1 is the schematic diagram according to the general technology of an embodiment;
Fig. 2 is the more detailed maps of Fig. 1;
Fig. 3 is to the illustration of the carbon dioxide enriched oxygen demand of flue gas on butt;
Fig. 4 is to the illustration of the carbon dioxide enriched oxygen demand of flue gas on wet basis;
Fig. 5 is the natural gas steam generation schematic diagram in the SAGD environment;
Fig. 6 is that pitch or the emulsion fuel steam in the SAGD environment produces schematic diagram;
Fig. 7 is that the residual oil emulsion fuel steam in the SAGD environment produces schematic diagram;
Fig. 8 is the schematic diagram of combined heat and power flue gas squeeze operation;
Fig. 9 is the schematic diagram of combined heat and power generating operation.
Numerical reference identical in manual is represented identical key element.
The specific embodiment
As known in the art, unless otherwise stated, SAGD refers to SAGD oil, SYNGAS refers to forming gas, and OTSG refers to the single current steam generation, and GHG refers to greenhouse gases, BOPD is the produce oil barrelage in a few days, COGEN refer to generate electricity or compression service and heat utilization and steam generation unite generation, HRSG refers to the waste heat recovery steam generator, " heavy oil " comprises heavy oil, extra heavy oil and pitch.
In Fig. 1, shown the schematic diagram of one embodiment of the invention.Numeral 10 is briefly represented whole technology.A kind of mixture that has mixed air, fuel and the oxygen of flue gas recirculation (FGR) stream is supplied to steam generating system 12 to produce steam 16 and flue gas 35.Select flue gas 35 exploitation from the rock stratum of containing them of the mixture generation enrichment of described air, fuel, oxygen and FGR, more detailed description is arranged below with optimization gas and heavy oil.
The fuel 20 that is contained in any air or oxygen mixture can be selected from any suitable hydrocarbon fuel, and its non-limitative example comprises natural gas, pitch, fuel oil, heavy oil, residue, emulsion fuel, heterogeneous super-fine atomization residual oil (trade mark of MSAR, Quadrise Canada Fuel Systems), asphaltene, coke (petcoke), coal and combination thereof.
To before injecting the rock stratum, handle or modification from the flue gas 35 of system 12 a processing operation 14.The byproduct that is produced by processing unit 14 can randomly be recovered.This flue gas can contain a large amount of gaseous compounds, comprises carbon dioxide, carbon monoxide, nitrogen, nitrogen oxide, hydrogen, sulfur dioxide, synthesis gas etc.Under the burning condition of excess oxygen, wherein oxygen content is present in the flue gas 35, and flue gas 35 will mainly contain carbon dioxide, nitrogen and water vapour.The injection gas 45 of treated mistake is injected into gas and the heavy oil rock stratum of generally being represented by numeral 18, is shown as a kind of SAGD (SAGD oil) rock stratum in an embodiment.The method relates to uses steam to help reduce the viscosity of thickness hydrocarbon to promote flowability.Natural gas, pitch and various other hydrocarbon that has value but more or less can not exploit are economically in the past also contained in these rock stratum.Steam 16 from system 12 is introduced in the rock stratum 18 as shown in the figure.
Now, because the combining of the injection of flue gas loop and the flue gas 45 of modification, the gas in the rock stratum 18 is become can have been exploited effectively.The combination of these operations has caused success of the present invention.Advantage is that technology described herein not only can be applied to the rock stratum of gas on pitch, can also be applied to contain the rock stratum that gas, pitch or its combined location are pressed close to.As a kind of non-limiting example, also can exploit laterally or the rock stratum of vertically replacing.This briefly is presented among Fig. 1, with numeral 18 ' expression.The flue gas of modification is injected into 18 ' 45 '.The advantage of this technology also can be used for SAGD chamber or the blowdown discarded, and wherein flue gas can be injected into not only keeping heavy oil recovery, and displacement heavy oil.
The natural gas 25 that cements out from rock stratum 18 be collected and can adopt extra unit operations or wherein a part can recycling carry out the system fuel as steam generation.After this a step does not show in Fig. 1, but within those skilled in the art's limit of power.
Then, the flowed extraction liquid that contains pitch by numeral 22 expressions is carried out oil processing operation 24, its medium pitch 26 processed water entrainments of removing are to obtain salable product.Recovered water 26 is further handled in a suitable unit for treating water 28 to remove deasphalting, sclerosis compound, silica and any other unwanted compound to obtain to be suitable for the water of making boiler feed water 30.For realizing that the result who needs can adopt any suitable water treatment operation.Boiler feed water 30 can recycling enter the manufacturing that system 12 is used for steam 16 then.In addition, handle the water of operating from flue gas, promptly can be in the recycling of 28 places, equally to increase efficient with numeral 52 water of representing.
In general description after the whole technology, can find out obviously that this technology has many advantages.These advantages comprise:
I) the efficient and environmental safety of harmful smoke is handled;
The ii) gas production rate from the rock stratum of Ti Gaoing;
Iii) the thermal recovery operation of Ti Gaoing is so that per unit steam produces more pitch;
Iv) carbon dioxide sequestration is to reduce the GHG discharging;
The v) volume replacement in the rock stratum; With
Vi) any combination of these characteristics.
Referring now to Fig. 2, demonstration be more detailed diagram according to the method for an embodiment.In the illustrated embodiment, providing an air separator unit 40 to be used for carrying out gas inject fuel and oxygen in steam generating system 12 before separates.Optional provide flue gas recirculation (FGR) loop for system 12.Flue gas recirculation is used for reduction system 12 interior combustion zone temperature so that the performance of steam generator all is consistent at the gamut of the oxygen therapy amount that is used for the steam generation process for combustion air.For higher oxygen content, if there is not flue gas recirculation (FGR), the heat generator temperature will surpass the design of steam generator limit.Leave the flue gas in loop and handled in processing unit 14, here it stands the removal of suspended particulates, as electrostatic precipitation or dust storage chamber 44, and in the ash discharge of 46 places.Before being compressed at 48 places, the gas of so handling also further dewatered 50 by further chilling.Can be recycled to unit for treating water 28 or the MSAR that will discuss hereinafter forms the stage 70 from the water 52 of described operation.Bi-product gas from 14 if produced, can be separated from flue gas and be reclaimed and be used to further operation, for example is used for the CO fuel of heating furnace or boiler, is used for the SO2 of commercial distribution or is used for the H2 oxygen supply of asphaltic nature.
In this embodiment, leaving the pitch of oil processing unit 24 can partially or completely handle in the modifying apparatus 56, pitch or synthetic crude at 58 output upgradings, and the hydrocarbon mixture of being made up of pitch, residual oil, asphaltene or coke etc. can be further processed into MSAR, a kind of in U.S. Pat 6,530, the highly effective fuel that goes through is arranged in 965, mainly be included in the pre-dispersed residual oil in the aqueous matrix, it can reduce the fuel cost of steam generating system running greatly.Traditionally, the latter is to use natural gas, and its cost is considerably beyond the cost that uses MSAR.Randomly, described fuel can replace with those fuel of previous instruction or augment.
Fig. 3 and 4 has shown the carbon dioxide enriched oxygen demand of flue gas on butt and wet basis with chart respectively.When in steam generator operation, introducing pure oxygen, will comprise still less nitrogen for a certain amount of carbon dioxide flue gas 35.Therefore not only the amount of flue gas has reduced, and the gas concentration lwevel in the gas of handling 45 has improved.For example, with reference to figure 3, when used oxygen content convergence 100% (0% combustion air), the composition of the flue gas of handling is near 100%CO on butt 2, comprise compounds such as a spot of carbon monoxide, sulfur dioxide, nitrogen dioxide.Fig. 3 represents the main composition of the injection gas 45 handled.With reference to Fig. 4, with caption flue gas stream 35 be main composition before carrying out flue gas in 14 handles.
Fig. 5 is the schematic diagram in natural gas production of steam loop.In this embodiment, at least a portion natural gas 20 of being replaced can recycling as the fuel that drives steam generating system 12.This represents with numeral 60.The injection flue gas of enrichment is injected into the replacement product fluid, and wherein said injection flue gas can self-definedly comprise the nitrogen of 30%-50% and the carbon dioxide of 70%-50%, and pitch, natural gas, water etc. are at 62 upgradings.The selection of the operation of carrying out in 62 places will be depended on the product of expectation.
The water 52 that reclaims from fume treatment unit 14 can be recycled to 62.
In Fig. 6, steam generation realizes that by using a kind of liquid substitute fuel shown in the embodiment is a kind of pitch or astatki, and perhaps, described pitch or heavy oil are transformed into emulsion fuel.Leave the processed pitch that is positioned at pipeline 66 that central authorities handle equipment 62 can turn to make a part of material only pipeline 68 directly as heavy fuel oil or, directly enter emulsification unit and be used to make a kind of substitute fuel.The emulsification unit stage is represented with 70.Reclaim and the water of the additional amount of circulation can be diverted and introduce unit 70 by pipeline 72 52.In the emulsion fuel unit, the chemical agent that is fit to is added into bituminous material (surfactant or the like) to make substitute fuel.In a single day substitute fuel prepares, and just leaves emulsification unit and can be used as fuel to be introduced into to drive steam generating system 12.Come the natural gas of the gas that quilt is replaced in the comfortable rock stratum 18 to stop no longer to consume the natural gas of any further amount as fuel and this process.So, in case emulsification unit available and stable after, this process only depends on the substitute fuel that himself produces.
In Fig. 7, shown a kind of variant of Fig. 6, wherein added asphalt quality and improved device 76 to the unit operations of central processing unit.The material 66 that leaves central processing unit by upgrading, forms heavy residual oil and leaves 80 and can be made into the substitute fuels of emulsification then and be introduced into vapour system 12 as Fig. 6 in upgrader 76.Thing followed benefit is that oil pitch quality is risen to deasphalted oil or synthetic crude.
In Fig. 8, one embodiment of the invention are used in combination with gas combined heat and power (COGEN) equipment 600 of routine to improve whole thermogravimetric oil extraction operation.Especially, when combining the present embodiment, steam generator 12 as previously described can compatibly be equipped with COGEN waste heat recovery steam generator (HRSG) and drive the required energy of handling of injection flue gas compressor to make required whole steam in jections and to provide.
Fig. 9 has illustrated another embodiment, and steam generator 12 combines to produce electric energy with COGEN equipment 600 whereby.The electric energy that is produced can be used to drive the flue gas compressor handled and provide power so that it can be self-sufficient for complete equipment 10.

Claims (25)

1. the method for exploitation heavy oil and a pitch from the subterranean strata that contains heavy oil and pitch comprises:
A kind of fuel is provided;
Combustion fuel is used to inject the flue gas of rock stratum with generation in the flue gas recirculation loop; With
Flue gas is injected the rock stratum to replace described heavy oil and pitch.
2. according to the process of claim 1 wherein that described fuel is a kind of fossil fuel.
3. according to the method for claim 2, wherein said fuel is selected from natural gas, fuel oil, heavy oil, residual oil, emulsion fuel, heterogeneous super-fine atomization residual oil, asphaltene, petroleum coke, coal and combination thereof.
4. according to the method for claim 1-3, wherein said fuel burns with oxygen and air in steam generator.
5. according to the method for claim 1-4, also be included in and inject the described rock stratum step of the described flue gas of modification before.
6. according to the method for claim 5, comprise and remove the bi-product gas that in described modification procedure, produces.
7. according to the method for claim 6, wherein said bi-product gas comprises at least a in oxygen, carbon monoxide, nitrogen, nitrogen oxide, sulfur oxide and the carbon dioxide.
8. according to any one method among the claim 5-7, comprise and remove the particulate ash.
9. according to any one method among the claim 5-8, the step of the described flue gas of wherein said modification comprises takes off these unit operations of particulate, chilling, compression and dehydration.
10. according to any one method among the claim 5-9, the flue gas of wherein said modification is injected into described rock stratum with to the supercharging of described rock stratum and discharge natural gas in the described rock stratum.
11. according to the method for claim 10, wherein heavy oil is cemented out from described rock stratum in pressurization.
12., further comprise step with the described heavy oil that displaces of reforming unit operation modification according to the method for claim 11.
13. according to the method for claim 12, wherein said reforming unit operation comprises from anhydrating by removing in the oil that cements out the described rock stratum.
14. according to the method for claim 13, wherein the water that is removed of at least a portion is recycled and enters described steam generator.
15. according to any one method among the claim 12-14, wherein at least a portion is converted to heterogeneous super-fine atomization residual oil with as combustion fuel from the residual oil of upgrading heavy oil.
16. one kind from SAGD oil rock layer and geographical position near the method for gas extraction and pitch at least a rock stratum the rock stratum, wherein said SAGD oil rock layer comprises the gas that is positioned on the pitch in the volume of described rock stratum, the step of the method comprises:
Provide the flue gas recirculation loop to produce the flue gas of modification;
The flue gas of described modification is injected described rock stratum to displace described pitch within described rock stratum to be enough to replace the pressure that is positioned at the described gas on the described pitch;
The gas and the pitch of extraction displacement;
Increase or keep pressure to one pressure that equates with the previous pressure that injects described modification flue gas substantially of described volume with the flue gas of described modification.
17. according to the method for claim 16, the gas of wherein said displacement comprises the natural gas that does not contact with the direct geographical position of pitch.
18., comprise that further the composition that forms a kind of described modification flue gas is so that the maximized step of the volume of substitution gas according to the method for claim 16.
19., wherein after the gas-field exploitation of displacement, continue input modification flue gas to basic identical with further Isolation warm house gas GHG with original geology pressure according to any one method among the claim 16-18.
20. according to the method for claim 18 or 19, the step of the composition of a kind of described modification flue gas of wherein said formation comprises that the oxygen concentration that keeps in the described flue gas is in excessive, stoichiometry or be lower than stoichiometry.
21. according to any one method among the claim 18-20, the described composition of wherein said flue gas comprises the nitrogen of 0%-79% by volume.
22., further comprise the step that from described modification flue gas, produces bi-product gas according to any one method among the claim 16-21.
23. according to the method for claim 22, wherein said bi-product gas comprises at least a in hydrogen, carbon monoxide, nitrogen, nitrogen oxide, sulfur oxide and the carbon dioxide.
24. according to any one method among the claim 16-23, wherein said flue gas recirculation loop uses the hydrocarbon fuel that is selected from natural gas, fuel oil, heavy oil, pitch, residual oil, emulsion fuel, heterogeneous super-fine atomization residual oil, asphaltene, petroleum coke, coal and combination thereof to act as a fuel.
25. one kind from SAGD oil rock layer and geographical position near the method for gas extraction and pitch at least a rock stratum the rock stratum, wherein said SAGD oil rock layer comprises the gas that is positioned on the pitch in the volume of described rock stratum, the step of the method comprises:
Steam produces the stage, is used to produce the steam that injects described rock stratum;
In the flue gas recirculation stage, be used for the flue gas that modification is used to inject described rock stratum;
In the injection stage, the flue gas of modification is injected described rock stratum be positioned at the gas on the described pitch with displacement and keep the pressure of described rock stratum or the supercharging of described rock stratum;
The processing stage, handle the substitution gas of extraction and the liquid that discharges from the described injection stage.
CN2006100081678A 2005-04-27 2006-02-23 Method for exploiting heavy oil, gas or pitch Expired - Fee Related CN1932237B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA002505449A CA2505449C (en) 2005-04-27 2005-04-27 Flue gas injection for heavy oil recovery
CA2,505,449 2005-04-27

Publications (2)

Publication Number Publication Date
CN1932237A true CN1932237A (en) 2007-03-21
CN1932237B CN1932237B (en) 2012-10-24

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CN104919134A (en) * 2012-05-15 2015-09-16 尼克森能源无限责任公司 SAGDOX geometry for impaired bitumen reservoirs
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CN102119259A (en) * 2008-08-12 2011-07-06 琳德股份公司 Bitumen production method
CN103403291A (en) * 2010-12-23 2013-11-20 清洁能源系统股份有限公司 Zero emission steam generation process
CN102337877A (en) * 2011-09-09 2012-02-01 中国第一重型机械股份公司 Mining system for marginal oil field with marine heavy oil and method
CN102337876A (en) * 2011-09-09 2012-02-01 中国第一重型机械股份公司 Thermal mining system of marine heavy oil field and mining method
CN104919134A (en) * 2012-05-15 2015-09-16 尼克森能源无限责任公司 SAGDOX geometry for impaired bitumen reservoirs
CN105008660A (en) * 2012-11-19 2015-10-28 尼克森能源无限责任公司 Method and system of optimized steam-assisted gravity drainage with oxygen ("SAGDOX") for oil recovery
CN103306652B (en) * 2013-05-20 2016-03-09 江苏大江石油科技有限公司 Crude oil type composite heat carrier generator system
WO2014187023A1 (en) * 2013-05-20 2014-11-27 江苏大江石油科技有限公司 Diesel-type composite heat carrier generating system
CN103306652A (en) * 2013-05-20 2013-09-18 江苏大江石油科技有限公司 Crude oil type composite heat carrier generator system
CN103351886B (en) * 2013-07-09 2015-09-23 杨林江 A kind of method of the matrix pitch that runs oil from rock asphalt
CN103351886A (en) * 2013-07-09 2013-10-16 杨林江 Method for extracting petroleum substrate asphalt from natural asphalt
CN106029205A (en) * 2013-09-18 2016-10-12 第10街1234有限公司 Reducing the carbon emissions intensity of a fuel
US10557338B2 (en) 2013-09-18 2020-02-11 1234 10Th Street Llc Reducing the carbon emissions intensity of a fuel
CN103742114A (en) * 2014-01-23 2014-04-23 山东成林高新技术产业有限公司 Device and method for thermally extracting oil by means of injecting steam and flue gas of same boiler in mixed manner
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CN104030381B (en) * 2014-06-18 2016-04-27 西安交通大学 A kind of system and method utilizing oil field ground waste heat to prepare injection boiler feedwater
CN106285630A (en) * 2016-09-23 2017-01-04 中国海洋石油总公司 A kind of assay method of the peak production capacity of SAGD well
CN110972485A (en) * 2017-03-23 2020-04-07 北京捷茂迪华能源技术有限公司 Method for increasing production of coal bed gas by injecting high-temperature air

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BRPI0607657A2 (en) 2009-09-22

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