CN1932237B - Method for exploiting heavy oil, gas or pitch - Google Patents
Method for exploiting heavy oil, gas or pitch Download PDFInfo
- Publication number
- CN1932237B CN1932237B CN2006100081678A CN200610008167A CN1932237B CN 1932237 B CN1932237 B CN 1932237B CN 2006100081678 A CN2006100081678 A CN 2006100081678A CN 200610008167 A CN200610008167 A CN 200610008167A CN 1932237 B CN1932237 B CN 1932237B
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- Prior art keywords
- flue gas
- gas
- pitch
- rock stratum
- fuel
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Links
- 238000000034 method Methods 0.000 title claims abstract description 47
- 239000000295 fuel oil Substances 0.000 title claims description 38
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical class [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 75
- 239000003546 flue gas Substances 0.000 claims abstract description 69
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000003345 natural gas Substances 0.000 claims abstract description 23
- 238000002347 injection Methods 0.000 claims abstract description 12
- 239000007924 injection Substances 0.000 claims abstract description 12
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 6
- 238000010796 Steam-assisted gravity drainage Methods 0.000 claims abstract 7
- 239000011435 rock Substances 0.000 claims description 52
- 239000000446 fuel Substances 0.000 claims description 50
- 239000007789 gas Substances 0.000 claims description 39
- 239000011295 pitch Substances 0.000 claims description 29
- 239000003921 oil Substances 0.000 claims description 28
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 24
- 230000004048 modification Effects 0.000 claims description 21
- 238000012986 modification Methods 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 229910001868 water Inorganic materials 0.000 claims description 17
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 16
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 15
- 239000001301 oxygen Substances 0.000 claims description 15
- 229910052760 oxygen Inorganic materials 0.000 claims description 15
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims description 12
- 239000001569 carbon dioxide Substances 0.000 claims description 12
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 12
- 238000000605 extraction Methods 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 10
- 238000006073 displacement reaction Methods 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- 238000002485 combustion reaction Methods 0.000 claims description 7
- 239000000839 emulsion Substances 0.000 claims description 7
- 239000004215 Carbon black (E152) Substances 0.000 claims description 6
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 6
- 229930195733 hydrocarbon Natural products 0.000 claims description 6
- 150000002430 hydrocarbons Chemical class 0.000 claims description 6
- 238000010977 unit operation Methods 0.000 claims description 4
- -1 asphaltene Substances 0.000 claims description 3
- 239000003245 coal Substances 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000002006 petroleum coke Substances 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 230000018044 dehydration Effects 0.000 claims description 2
- 238000006297 dehydration reaction Methods 0.000 claims description 2
- TXKMVPPZCYKFAC-UHFFFAOYSA-N disulfur monoxide Inorganic materials O=S=S TXKMVPPZCYKFAC-UHFFFAOYSA-N 0.000 claims 3
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 claims 3
- 239000010761 intermediate fuel oil Substances 0.000 claims 2
- 238000002407 reforming Methods 0.000 claims 2
- 238000006467 substitution reaction Methods 0.000 claims 2
- 239000002803 fossil fuel Substances 0.000 claims 1
- 238000002955 isolation Methods 0.000 claims 1
- 238000002203 pretreatment Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 13
- 238000011084 recovery Methods 0.000 abstract description 12
- 230000008901 benefit Effects 0.000 abstract description 7
- 239000010426 asphalt Substances 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 abstract description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 6
- 239000005431 greenhouse gas Substances 0.000 description 6
- 238000004945 emulsification Methods 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- 239000008186 active pharmaceutical agent Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000000571 coke Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 description 1
- 208000005156 Dehydration Diseases 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 208000034189 Sclerosis Diseases 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005367 electrostatic precipitation Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000010763 heavy fuel oil Substances 0.000 description 1
- 239000011306 natural pitch Substances 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 239000003027 oil sand Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000002640 oxygen therapy Methods 0.000 description 1
- 230000009919 sequestration Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/166—Injecting a gaseous medium; Injecting a gaseous medium and a liquid medium
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/164—Injecting CO2 or carbonated water
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING 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
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
- C10G1/04—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal by extraction
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/005—Waste disposal systems
- E21B41/0057—Disposal of a fluid by injection into a subterranean formation
- E21B41/0064—Carbon dioxide sequestration
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/166—Injecting a gaseous medium; Injecting a gaseous medium and a liquid medium
- E21B43/168—Injecting a gaseous medium
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/18—Repressuring or vacuum methods
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
- E21B43/2406—Steam assisted gravity drainage [SAGD]
- E21B43/2408—SAGD in combination with other methods
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B33/00—Steam-generation plants, e.g. comprising steam boilers of different types in mutual association
- F22B33/18—Combinations of steam boilers with other apparatus
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/40—Capture or disposal of greenhouse gases of CO2
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P30/00—Technologies relating to oil refining and petrochemical industry
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/70—Combining sequestration of CO2 and exploitation of hydrocarbons by injecting CO2 or carbonated water in oil wells
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Geochemistry & Mineralogy (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- General Chemical & Material Sciences (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Treating Waste Gases (AREA)
- Working-Up Tar And Pitch (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
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
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 several types 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 enhancement techniques like 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 enhancement techniques like heat or heat/solvent.
In view of maybe be in Canada, Central America, Russia, China and the world huge heavy oil and the known value of pitch reserves of other area existence, 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 through condensation.Certainly, thus this can reduce oil viscosity and makes and can carry out gravity flood and collection.Injection can be driven (CSS) through known cyclic steam, handled up and SAGD oil (SAGD).
Although SAGD is used just more and more widely, it still exists several places of relevant efficient aspect not enough.One is caused the aspect of huge cost is exactly the fuel that is used for the steam generator of driving and generating steam in jection.Optimal fuel is natural gas, but its expense can significantly reduce whole efficiency, and this problem is also mixed with in the steam generator running that uses any hydrocarbon fuel, all discharging the fact of the greenhouse gases (GHG) of different amounts.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, 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 the suitable fuel that a kind of SAGD of confession manipulates 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 through providing a kind of substitute fuel with hot property of natural gas to reduce cost.
Summary of the invention
Desired characteristics of all that the present invention has is high with energy efficiency, the green environmental sound technology of high yield is celebrated and advantage.
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 from the subterranean strata that contains heavy oil and pitch, exploiting 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, below will with reference to the explanation preferred embodiment accompanying drawing present invention is described, wherein:
Fig. 1 is the sketch map 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 sketch map in the SAGD environment;
Fig. 6 is that pitch or the emulsion fuel steam in the SAGD environment produces sketch map;
Fig. 7 is that the residual oil emulsion fuel steam in the SAGD environment produces sketch map;
Fig. 8 is the sketch map of combined heat and power flue gas squeeze operation;
Fig. 9 is the sketch map 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, only if statement is arranged in addition, 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 sketch map 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 that the mixture of said air, fuel, oxygen and FGR produces enrichment with optimization gas and the exploitation of heavy oil from the rock stratum of containing them, more detailed explanation is arranged below.
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 viscosity that steam helps reduce the 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 as shown in the figure being introduced in the rock stratum 18 from system 12.
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 said technology 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 is processed removes water entrainment 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.The result who needs for realization can adopt any suitable water treatment operation.Boiler feed water 30 can recycling get into the manufacturing that system 12 is used for steam 16 then.In addition, handle the water of operating from flue gas, the water of promptly representing with numeral 52 can be in the recycling of 28 places, equally to increase efficient.
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 gas production rate that ii) improves from the rock stratum;
The thermal recovery operation that iii) improves 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 before at injection fuel in steam generating system 12 with oxygen separates.Optional provides 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 in processing unit 14, handled, here it stands the removal of suspended particulates, like electrostatic precipitation or dust storage chamber 44, and in the ash discharge of 46 places.Further chilling of quilt and quilt were in 50 further dehydrations before the gas of so handling was compressed at 48 places.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 said operation.Bi-product gas from 14 if produced, can be separated from flue gas and 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, leave the pitch of oil processing unit 24 and can in modifying apparatus 56 partially or completely, handle, at the pitch or the synthetic crude of 58 output upgradings; And the hydrocarbon mixture of being made up of pitch, residual oil, asphaltene or coke etc. can further be 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, said 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 the steam generator operation, introducing pure oxygen, will comprise nitrogen still less 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.The main composition of the injection gas 45 that Fig. 3 representes to handle.With reference to Fig. 4, with caption flue gas stream 35 be the main composition before carrying out flue gas in 14 handles.
Fig. 5 is the sketch map 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 representes 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 through using a kind of liquid substitute fuel shown in the embodiment is a kind of pitch or astatki, and perhaps, said pitch or heavy oil are transformed into emulsion fuel.The pitch that was processed that is positioned at pipeline 66 that leaves central authorities' processing equipment 62 can turn to and make a part of material only at pipeline 68 directly as heavy fuel oil perhaps, directly gets into emulsification unit and is 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 turned to and introduce unit 70 through 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 fuel of emulsification then and be introduced into vapour system 12 like 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 quilt is used in combination with gas combined heat and power (COGEN) equipment 600 of routine to improve whole thermogravimetric oil extraction operation.Especially; When having combined this embodiment, like foregoing steam generator 12 COGEN waste heat recovery steam generator (HRSG) can be housed compatibly and drive the required energy of handling of injection flue gas compressor with providing to make required whole steam in jections.
Fig. 9 has explained 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 power is provided so that it can be self-sufficient for complete equipment 10.
Claims (27)
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;
Provide a steam raising plant to produce steam and said steam is injected said subterranean strata;
A flue gas recirculation loop is provided;
Combustion fuel is used to inject the modification flue gas of rock stratum with generation in said flue gas recirculation loop; With
Said flue gas and said steam are injected the rock stratum to replace said heavy oil and pitch.
2. according to the process of claim 1 wherein that said 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, pitch, emulsion fuel, asphaltene, petroleum coke, coal and combination thereof, and its intermediate fuel oil is selected from heavy oil or residual oil.
4. according to the process of claim 1 wherein that said fuel burns with oxygen and air in steam generator.
5. according to the method for claim 1, also be included in and inject the said rock stratum step of the said flue gas of preliminary treatment before.
6. according to the method for claim 5, comprise and remove the bi-product gas that in said pre-treatment step, 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 the method for claim 7, the step of the said flue gas of wherein said preliminary treatment comprises takes off these unit operations of particulate, chilling, compression and dehydration.
9. according to Claim 8 method, wherein said pretreated flue gas are injected into said rock stratum with to the supercharging of said rock stratum and discharge the natural gas in the said rock stratum.
10. according to the method for claim 9, wherein in pressurization heavy oil by from said rock stratum displace come out.
11., further comprise step with the said heavy oil that displaces of reforming unit operational processes according to the method for claim 10.
12. according to the method for claim 11, wherein said reforming unit operation comprises from the oil that is come out by said rock stratum displace, removing anhydrates.
13. according to the method for claim 12, wherein the water that is removed of at least a portion is recycled and gets into said steam raising plant.
14. according to any one method in the claim 13, wherein at least a portion is transformed as combustion fuel from the residual oil of upgrading heavy oil.
15. 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 in said SAGD oil rock layer, comprise the gas that is positioned on the pitch, the step of the method comprises:
Provide the flue gas recirculation loop to produce the flue gas of modification;
The flue gas of said modification is injected said rock stratum within said rock stratum, to displace said pitch to be enough to replace the pressure that is positioned at the said gas on the said pitch;
The gas and the pitch of extraction displacement;
Increase or keep pressure to one pressure that equates with the previous pressure that injects said modification flue gas basically of said volume with the flue gas of said modification.
16. according to the method for claim 15, the gas of wherein said displacement comprises the natural gas that does not contact with the direct geographical position of pitch.
17., comprise that further the composition that forms a kind of said modification flue gas is so that the maximized step of the volume of substitution gas according to the method for claim 15.
18., wherein after the gas-field exploitation of displacement, continue input modification flue gas to basic identical with Isolation warm house gas GHG with original geology pressure according to the method for claim 15.
19. according to the method for claim 18, the step of the composition of a kind of said modification flue gas of wherein said formation comprises that the oxygen concentration that keeps in the said flue gas is in excessive, stoichiometry or be lower than stoichiometry.
20. according to the method for claim 19, the said composition of wherein said flue gas comprises the nitrogen of 0%-79% by volume.
21., further comprise the step that from said modification flue gas, produces bi-product gas according to the method for claim 20.
22. according to the method for claim 21, wherein said bi-product gas comprises at least a in hydrogen, carbon monoxide, nitrogen, nitrogen oxide, sulfur oxide and the carbon dioxide.
23. according to the method for claim 22, wherein said flue gas recirculation loop uses the hydrocarbon fuel that is selected from natural gas, fuel oil, pitch, emulsion fuel, asphaltene, petroleum coke, coal and combination thereof to act as a fuel, said its intermediate fuel oil is selected from heavy oil or residual oil.
24. 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 in said SAGD oil rock layer, comprise the gas that is positioned on the pitch, the step of the method comprises:
Steam produces the stage, is used to produce the steam that injects said rock stratum;
In the flue gas recirculation stage, be used for the flue gas that modification is used to inject said rock stratum;
In the injection stage, the flue gas of modification is injected said rock stratum be positioned at gas on the said pitch with the pressure that keeps said rock stratum or to the supercharging of said rock stratum with displacement;
The processing stage, handle the substitution gas of extraction and the liquid that discharges from the said injection stage.
25. a method of from the subterranean strata that contains heavy oil and pitch, exploiting heavy oil and pitch comprises:
A kind of fuel is provided;
The said fuel of burning is used to inject the flue gas of the modification of said rock stratum with generation in the flue gas recirculation loop;
With the flue gas of modification inject said rock stratum come when said rock stratum discharges natural gas and heavy oil to the supercharging of said rock stratum;
The heavy oil that upgrading reclaims; With
Transform at least a portion residual oil as fuel.
26. 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 in said SAGD oil rock layer, comprise the gas that is positioned on the pitch, the step of the method comprises:
Provide the flue gas recirculation loop to produce the flue gas of modification;
From said modification flue gas, produce bi-product gas;
The flue gas of said modification is injected said rock stratum within said rock stratum, to displace said pitch to be enough to replace the pressure that is positioned at the said gas on the said pitch;
The gas and the pitch of extraction displacement; With
Increase or keep pressure to one pressure that equates with the previous pressure that injects said modification flue gas basically of said volume with the flue gas of said modification.
27. according to the method for claim 26, wherein said bi-product gas comprises at least a in hydrogen, carbon monoxide, nitrogen, nitrogen oxide, sulfur oxide and the carbon dioxide.
Applications Claiming Priority (2)
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|---|---|---|---|
| CA2,505,449 | 2005-04-27 | ||
| CA002505449A CA2505449C (en) | 2005-04-27 | 2005-04-27 | Flue gas injection for heavy oil recovery |
Publications (2)
| Publication Number | Publication Date |
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| CN1932237A CN1932237A (en) | 2007-03-21 |
| CN1932237B true CN1932237B (en) | 2012-10-24 |
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| CN2006100081678A Expired - Fee Related CN1932237B (en) | 2005-04-27 | 2006-02-23 | Method for exploiting heavy oil, gas or pitch |
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| JP (1) | JP2006307160A (en) |
| KR (1) | KR101280016B1 (en) |
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| NO (1) | NO20060582L (en) |
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| WO (1) | WO2006113982A1 (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| MX2007013439A (en) | 2008-01-14 |
| CA2505449A1 (en) | 2006-02-07 |
| AU2006200466B2 (en) | 2010-02-18 |
| CA2505449C (en) | 2007-03-13 |
| GB2425550B (en) | 2010-06-02 |
| EA013019B1 (en) | 2010-02-26 |
| EP1875039A1 (en) | 2008-01-09 |
| KR101280016B1 (en) | 2013-07-01 |
| FR2885133B1 (en) | 2010-12-31 |
| BRPI0607657A2 (en) | 2009-09-22 |
| EA200602090A1 (en) | 2008-06-30 |
| GB2425550A (en) | 2006-11-01 |
| EP1875039A4 (en) | 2013-06-19 |
| MA29441B1 (en) | 2008-05-02 |
| KR20080028354A (en) | 2008-03-31 |
| DE102006005277A1 (en) | 2006-11-09 |
| NZ545119A (en) | 2007-09-28 |
| JP2006307160A (en) | 2006-11-09 |
| GB0602343D0 (en) | 2006-03-15 |
| NO20060582L (en) | 2006-10-30 |
| WO2006113982A1 (en) | 2006-11-02 |
| CN1932237A (en) | 2007-03-21 |
| FR2885133A1 (en) | 2006-11-03 |
| AU2006200466A1 (en) | 2006-11-16 |
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