WO2021119584A1 - Methods and materials for producing identifiable methanogenic products - Google Patents
Methods and materials for producing identifiable methanogenic products Download PDFInfo
- Publication number
- WO2021119584A1 WO2021119584A1 PCT/US2020/064814 US2020064814W WO2021119584A1 WO 2021119584 A1 WO2021119584 A1 WO 2021119584A1 US 2020064814 W US2020064814 W US 2020064814W WO 2021119584 A1 WO2021119584 A1 WO 2021119584A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- geologic formation
- hydrocarbon materials
- methane
- deuterium
- producing hydrocarbon
- Prior art date
Links
- 239000000463 material Substances 0.000 title claims abstract description 143
- 238000000034 method Methods 0.000 title claims abstract description 96
- 230000000696 methanogenic effect Effects 0.000 title description 6
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 98
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 51
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 51
- 244000005700 microbiome Species 0.000 claims abstract description 45
- 239000004215 Carbon black (E152) Substances 0.000 claims abstract description 39
- YZCKVEUIGOORGS-OUBTZVSYSA-N Deuterium Chemical compound [2H] YZCKVEUIGOORGS-OUBTZVSYSA-N 0.000 claims abstract description 32
- 229910052805 deuterium Inorganic materials 0.000 claims abstract description 32
- 238000004519 manufacturing process Methods 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-ZSJDYOACSA-N Heavy water Chemical compound [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 claims abstract description 18
- 239000003575 carbonaceous material Substances 0.000 claims abstract description 13
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 159
- 150000001875 compounds Chemical class 0.000 claims description 37
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 26
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 22
- 229910052739 hydrogen Inorganic materials 0.000 claims description 21
- 239000001257 hydrogen Substances 0.000 claims description 21
- 239000003245 coal Substances 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 229910001868 water Inorganic materials 0.000 claims description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 16
- 229910052799 carbon Inorganic materials 0.000 claims description 16
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 15
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 14
- 150000002431 hydrogen Chemical class 0.000 claims description 14
- 229910052717 sulfur Inorganic materials 0.000 claims description 14
- 239000011593 sulfur Substances 0.000 claims description 14
- 229910052757 nitrogen Inorganic materials 0.000 claims description 13
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 12
- 229910052760 oxygen Inorganic materials 0.000 claims description 12
- 239000001301 oxygen Substances 0.000 claims description 12
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 11
- 238000011065 in-situ storage Methods 0.000 claims description 11
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 10
- 239000001569 carbon dioxide Substances 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
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- 238000001514 detection method Methods 0.000 claims description 7
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 229940041514 candida albicans extract Drugs 0.000 claims description 5
- -1 carbonaceous shale Substances 0.000 claims description 5
- 239000012138 yeast extract Substances 0.000 claims description 5
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 4
- 239000010941 cobalt Substances 0.000 claims description 4
- 229910017052 cobalt Inorganic materials 0.000 claims description 4
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 4
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims description 4
- 239000011733 molybdenum Substances 0.000 claims description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 4
- 229910052721 tungsten Inorganic materials 0.000 claims description 4
- 239000010937 tungsten Substances 0.000 claims description 4
- 229910052725 zinc Inorganic materials 0.000 claims description 4
- 239000011701 zinc Substances 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 101000725988 Drosophila melanogaster COP9 signalosome complex subunit 3 Proteins 0.000 claims description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 3
- 239000010426 asphalt Substances 0.000 claims description 3
- MQTOSJVFKKJCRP-BICOPXKESA-N azithromycin Chemical compound O([C@@H]1[C@@H](C)C(=O)O[C@@H]([C@@]([C@H](O)[C@@H](C)N(C)C[C@H](C)C[C@@](C)(O)[C@H](O[C@H]2[C@@H]([C@H](C[C@@H](C)O2)N(C)C)O)[C@H]1C)(C)O)CC)[C@H]1C[C@@](C)(OC)[C@@H](O)[C@H](C)O1 MQTOSJVFKKJCRP-BICOPXKESA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 claims description 3
- 238000002307 isotope ratio mass spectrometry Methods 0.000 claims description 3
- 239000003077 lignite Substances 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
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- 238000005755 formation reaction Methods 0.000 description 65
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- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 235000014680 Saccharomyces cerevisiae Nutrition 0.000 description 2
- 238000006065 biodegradation reaction Methods 0.000 description 2
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- 238000007900 DNA-DNA hybridization Methods 0.000 description 1
- BDAGIHXWWSANSR-UHFFFAOYSA-M Formate Chemical compound [O-]C=O BDAGIHXWWSANSR-UHFFFAOYSA-M 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 238000005481 NMR spectroscopy Methods 0.000 description 1
- 229910021586 Nickel(II) chloride Inorganic materials 0.000 description 1
- 108091028043 Nucleic acid sequence Proteins 0.000 description 1
- 108020001027 Ribosomal DNA Proteins 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
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- 238000006243 chemical reaction Methods 0.000 description 1
- GVPFVAHMJGGAJG-UHFFFAOYSA-L cobalt dichloride Chemical compound [Cl-].[Cl-].[Co+2] GVPFVAHMJGGAJG-UHFFFAOYSA-L 0.000 description 1
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- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 description 1
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- 150000004683 dihydrates Chemical class 0.000 description 1
- ZPWVASYFFYYZEW-UHFFFAOYSA-L dipotassium hydrogen phosphate Chemical compound [K+].[K+].OP([O-])([O-])=O ZPWVASYFFYYZEW-UHFFFAOYSA-L 0.000 description 1
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- 229940099596 manganese sulfate Drugs 0.000 description 1
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- 239000011702 manganese sulphate Substances 0.000 description 1
- SQQMAOCOWKFBNP-UHFFFAOYSA-L manganese(II) sulfate Chemical compound [Mn+2].[O-]S([O-])(=O)=O SQQMAOCOWKFBNP-UHFFFAOYSA-L 0.000 description 1
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- QMMRZOWCJAIUJA-UHFFFAOYSA-L nickel dichloride Chemical compound Cl[Ni]Cl QMMRZOWCJAIUJA-UHFFFAOYSA-L 0.000 description 1
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- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- DZCAZXAJPZCSCU-UHFFFAOYSA-K sodium nitrilotriacetate Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)CN(CC([O-])=O)CC([O-])=O DZCAZXAJPZCSCU-UHFFFAOYSA-K 0.000 description 1
- 235000019832 sodium triphosphate Nutrition 0.000 description 1
- XMVONEAAOPAGAO-UHFFFAOYSA-N sodium tungstate Chemical compound [Na+].[Na+].[O-][W]([O-])(=O)=O XMVONEAAOPAGAO-UHFFFAOYSA-N 0.000 description 1
- RWVGQQGBQSJDQV-UHFFFAOYSA-M sodium;3-[[4-[(e)-[4-(4-ethoxyanilino)phenyl]-[4-[ethyl-[(3-sulfonatophenyl)methyl]azaniumylidene]-2-methylcyclohexa-2,5-dien-1-ylidene]methyl]-n-ethyl-3-methylanilino]methyl]benzenesulfonate Chemical compound [Na+].C1=CC(OCC)=CC=C1NC1=CC=C(C(=C2C(=CC(C=C2)=[N+](CC)CC=2C=C(C=CC=2)S([O-])(=O)=O)C)C=2C(=CC(=CC=2)N(CC)CC=2C=C(C=CC=2)S([O-])(=O)=O)C)C=C1 RWVGQQGBQSJDQV-UHFFFAOYSA-M 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- 238000012360 testing method Methods 0.000 description 1
- 150000004685 tetrahydrates Chemical class 0.000 description 1
- RYCLIXPGLDDLTM-UHFFFAOYSA-J tetrapotassium;phosphonato phosphate Chemical compound [K+].[K+].[K+].[K+].[O-]P([O-])(=O)OP([O-])([O-])=O RYCLIXPGLDDLTM-UHFFFAOYSA-J 0.000 description 1
- 235000013343 vitamin Nutrition 0.000 description 1
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- 229930003231 vitamin Natural products 0.000 description 1
- 238000004832 voltammetry Methods 0.000 description 1
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 1
- 229960001763 zinc sulfate Drugs 0.000 description 1
- 229910000368 zinc sulfate Inorganic materials 0.000 description 1
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
- E21B43/164—Injecting CO2 or carbonated water
-
- 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
- E21B43/006—Production of coal-bed methane
-
- 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
- C09K8/582—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of bacteria
-
- 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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Definitions
- the present technology relates to conversion material recovery. More specifically, the present technology relates to enhanced biological methane generation and identification.
- Methods of producing hydrocarbon materials from a geologic formation may include accessing a consortium of microorganisms in a geologic formation that includes a carbonaceous material.
- the methods may include delivering an aqueous material incorporating deuterium oxide to the consortium of microorganisms.
- the methods may include increasing production of hydrocarbon materials by the consortium of microorganisms.
- the methods may include recovering a deuterium-containing hydrocarbon from the geologic formation.
- the deuterium-containing hydrocarbon may be or include a deuterium-containing methane.
- the methods may also include determining an amount of newly produced gaseous materials.
- the determining may include identifying a concentration of deuterium within in-situ hydrocarbons prior to delivering the aqueous material.
- the determining may include identifying a concentration of deuterium within recovered hydrocarbons.
- the determining may include determining an amount of hydrocarbons resulting from increasing production of the hydrocarbon materials.
- the methods may include differentiating between 13 CH4 and DCTU within the hydrocarbons. The differentiating may be performed with isotope ratio mass spectrometry or cavity ring down spectroscopic detection.
- the aqueous material may also include incorporated metals.
- the incorporated metals may include one or more of cobalt, copper, manganese, molybdenum, nickel, tungsten, or zinc.
- the aqueous material may also include yeast extract.
- the aqueous material may include a phosphorous-containing compound.
- the geologic formation may be a coal bed, and the aqueous material may be delivered into a cleat characterized by a sub- bituminous coal maturity.
- Some embodiments of the present technology may encompass methods of producing hydrocarbon materials from a geologic formation.
- the methods may include accessing a consortium of microorganisms in a geologic formation that includes a carbonaceous material.
- the methods may include determining a concentration of deuterium of in-situ methane within the geologic formation.
- the methods may include delivering an aqueous material incorporating a deuterium-containing compound to the consortium of microorganisms.
- the methods may include increasing production of methane by the consortium of microorganisms.
- the methods may include recovering a deuterium-containing methane from the geologic formation.
- the methods may include determining a concentration of deuterium in the recovered deuterium-containing methane.
- the methods may include determining a volume of new methane produced by the method.
- the geologic formation may be a deposit including oil, natural gas, coal, bitumen, tar sands, lignite, peat, carbonaceous shale or sediments rich in organic matter.
- the methods may include differentiating between 13 CH and DCFb within the deuterium-containing methane.
- the aqueous material may include incorporated metals, yeast extract, or a phosphorus-containing compound.
- Some embodiments of the present technology may encompass methods of producing hydrocarbon materials from a geologic formation.
- the methods may include accessing a consortium of microorganisms in a geologic formation that includes a carbonaceous material.
- the methods may include determining within the geologic formation a concentration of a material including a naturally occurring, stable isotope for one or more of the elements carbon, hydrogen, oxygen, nitrogen, or sulfur of in-situ methane.
- the methods may include delivering to the consortium of microorganisms an aqueous material incorporating a compound including the stable isotope for the one or more of the elements carbon, hydrogen, oxygen, nitrogen, or sulfur.
- the methods may include increasing production of a compound by the consortium of microorganisms.
- the methods may include recovering from the geologic formation the material produced including the stable isotope for the one or more of the elements carbon, hydrogen, oxygen, nitrogen, or sulfur.
- the compound may be or include water, and the stable isotope may be or include 2 H or 18 0.
- the compound may be or include carbon dioxide, and the stable isotope may be or include 13 C or 18 0.
- the compound may be or include molecular hydrogen, and the stable isotope may be or include 2 H.
- the compound may be acetic acid or its conjugate base, and the stable isotope may be or include 2 H or 13 C.
- the produced material may be or include methane, carbon dioxide, or hydrogen that includes the stable isotope.
- Such technology may provide numerous benefits over conventional systems and techniques. For example, by producing and extracting new and identifiable methanogenic products, a renewable energy source may be produced. Additionally, by utilizing non radioactive isotopes, safer production and recovery may occur.
- FIG. 1 is a flowchart illustrating exemplary operations in a method of producing hydrocarbon materials from a geologic formation according to some embodiments of the present technology.
- FIG. 2 is a flowchart illustrating exemplary operations in a method of producing hydrocarbon materials from a geologic formation according to some embodiments of the present technology.
- FIG. 3 is a chart illustrating a DNA sequencing profile for a microbial community within a formation environment according to some embodiments of the present technology.
- FIG. 4 is a chart illustrating a DNA sequencing profile for a microbial community within a formation environment according to some embodiments of the present technology.
- Biological methane generation is a common source of methane in hydrocarbon bearing formations.
- the gas present is frequently if not exclusively the result of biological degradation of the coal, producing methane with specific characteristics that would be nearly identical to gas produced in non-geologic time periods as a result of stimulated methanogenesis, and that was also produced by the biological degradation of coal or other carbonaceous materials.
- differentiating between existing gas and newly produced gas may be needed.
- the present technology may afford discrimination between new and old gas by modifying a measurable characteristic of new gas produced. This may occur by providing a treatment material for stimulating methanogenesis, where the material provided may include one or more compounds including a naturally occurring, stable isotope for one or more elements of a product or byproduct to be produced, whether that product or byproduct may be or include newly produced methane, hydrogen, carbon dioxide, acetic acid or its conjugate base, or any other material or intermediate material associated with methanogenic activity.
- FIG. 1 illustrates a method 100 of producing hydrocarbon or other materials from a geologic formation.
- the method is designed to stimulate a consortium of microorganisms in the geologic formation to produce methane and other byproducts that may incorporate within or be utilized by microorganisms that may consume materials or be stimulated by materials to produce methane.
- the methods performed may stimulate and/or activate a consortium in the formation to start producing methane, and may increase production of an amount of methane that may be naturally formed within the environment.
- the methods may further include stopping or decreasing a “rollover” effect such as when the concentration of methane or other metabolic products starts to plateau after a period of monotonically increasing. These and other stimulation effects may be promoted by the materials delivered to the environment according to the method.
- the method 100 may include accessing a consortium of microorganisms within the geologic formation at operation 105.
- the microorganisms may reside in oil, formation water, in a biofilm on a solid surface, or at an interface between any of these surfaces.
- the geologic formation may be a carbonaceous material-containing subterranean formation, such as a coal deposit, natural gas deposit, carbonaceous shale, bitumen, tar sands, lignite, peat, other sediments rich in organic matter, or other naturally occurring carbonaceous material.
- the geologic formation may be a non-carbonaceous material having a pore structure containing water that may include inorganic carbon content in the form of carbonates and ionic forms of carbon dioxide.
- access to the formation can involve utilizing previously mined or drilled access points to the formation, such as a well, for example.
- accessing the formation may involve digging or drilling through a surface layer to access the underlying site where the microorganisms may be located.
- an aqueous material may be provided to the microorganisms at operation 110.
- an optional transfer of one or more materials may occur from the formation environment, such as into a bioreactor, or a bioreactor may be formed underground with materials. Material transfer may occur under controlled conditions, such as under anaerobic conditions, which may protect microorganisms.
- the aqueous material may be delivered to a sealed bioreactor or ex-situ environment.
- the aqueous material may be a water or other fluid injection, and in embodiments of the present technology, the aqueous material may be modified to incorporate a compound including a stable isotope of one or more of the elements carbon, hydrogen, oxygen, nitrogen, or sulfur.
- production of gaseous materials by the consortium of microorganisms may be increased through metabolizing materials within the aqueous material.
- These gaseous materials may be or include methane or other hydrocarbons, carbon dioxide, hydrogen, as well as other intermediate materials, which may not be gaseous, such as acetic acid or its conjugate base, for example.
- a product may be recovered from the formation environment, and the product may be characterized by including the stable isotope provided in operation 110 for the one or more elements carbon, hydrogen, oxygen, nitrogen, or sulfur.
- the compound including the stable isotope may affect or be consumed by microorganisms within the formation environment, the compound may then be transferred or transformed into a product or byproduct including the stable isotope.
- the aqueous material may be or include water in some embodiments, and the water may be modified to one or more materials within the fluid, including a compound including the stable isotope of the elements carbon, hydrogen, oxygen, nitrogen, sulfur, or other materials.
- a simple biological transformation that can be used to result in “new” methane is the acetoclastic methanogenesis pathway. In one pathway, one acetate ion is converted to one methane and one carbon dioxide. The carbon marked in the equation below with a * is always the carbon that ends up as methane.
- a radioactive isotope 14 C may be used on labeled precursor molecules, and thus, if biologically transformed, the result is radioactive 14 C-methane, or 14 CH4. Detection of radioactively labeled methane may be sensitive and specific, however, an exposure and contamination risk with radioactive isotopes may outweigh the sensitivity of using such an isotope. Accordingly, in some embodiments, the present technology may not use a radioactive isotope in any of the methods discussed.
- An additional method for distinguishing new gas generation may utilize 13 C, and following the transformation of a molecule with this isotope through the microbial process.
- 13 C there is a natural abundance of 13 C of -1%, meaning that this method has limitations on sensitivity or identifying new gas generated relative to pre-existing amounts of material incorporating 13 C.
- the natural abundance of 13 CH4 may in some instances be high enough to obscure any change due to a microbial stimulation.
- Deuterating a precursor, by switching one 'H to 2 H, also referred to as “D”, can eliminate the background issue with 13 C.
- the natural abundance of 2 H is -1:6,500, so there is less background interference using this isotope.
- D2O may be substituted with water in a one-to-one ratio, which may facilitate use in treatments based on water delivery, such as described above.
- the use of stable isotopes may cause additional challenges.
- MS mass spectrometry
- methane may be a target produce
- the identification may use a gas separation technique with MS detection.
- a compound can have its mass to charge ratio (m/z) determined to roughly a mass resolution of about 0.7, meaning that a mass to charge difference of one neutron can be measured.
- m/z mass to charge ratio
- a single deuteron in a compound has a mass increase of 1, as does a single 13 C.
- DCH3 may not be distinguishable from 13 CH4 using standard analysis techniques.
- enhanced identification techniques may be used to differentiate between 13 CH4 and DCH3 within the produced materials.
- the amount of isotopically labeled precursor used may not be equivalent to a stimulatory treatment.
- the total number of isotopically labeled methane molecules made may not be the total number of moles of methane made by the community.
- a factor that may be used is the ratio of methanogenesis rates between a stimulated and unstimulated (natural) community.
- These techniques may operate on one or two metabolic pathways: methylotrophic or acetoclastic methanogenic activity of the microorganism community. As noted, these metabolic pathways may not afford enough sensitivity to reliably identify what may be newly produced material.
- the present technology may be or include a process in which stable isotopes can be used as markers of biological activity in the environment, but at greater sensitivity than is possible using conventional or laboratory methods.
- This process may advantageously occur by a third methanogenic pathway, called hydrogenotrophic methanogenesis, which may use dissolved hydrogen and carbon dioxide within the formation environment to produce methane.
- Microbes may extract the majority of hydrogen used for this type of metabolic activity from water.
- the addition of deuterium oxide, D2O or 2 H20, as the compound including the stable isotope may allow the material to act as a stable isotope marker for hydrogenotrophic activity.
- the resulting uptake of deuterium instead of hydrogen by microbes may result in a distribution of isotopically unique methane, primarily DCFb.
- this compound may not be distinguishable by conventional gas chromatography -mass spectrometry from 13 CH4, which may be naturally included within the formation environment. Consequently, during identification operations, isotope ratio mass spectrometry, or a more advanced technique that allows for specific measurements of isotope ratios without other isotopic interference may be used.
- cavity ring down spectroscopic detection may also be used to determine the isotope ratio of the resulting methane to allow a determination of the amount produced material resulting from increasing production of methane or other materials relative to pre-existing or otherwise produced materials, without interference from outer isotopologues.
- the methods may also include providing one or more additional materials into the formation environment with the aqueous material.
- a solution or mixture of materials incorporated within water such as deionized water, may also be delivered.
- the materials included within the additional materials may include metals, salts, acids, and/or extracts.
- the salts or materials may be included in any hydrate variety, including monohydrate, dihydrate, tetrahydrate, pentahydrate, hexahydrate, heptahydrate, or any other hydrate variety.
- Exemplary materials may include metals or metallic compounds including one or more of cobalt, copper, manganese, molybdenum, nickel, tungsten, or zinc.
- Yeast extract may be included to provide further nutrients to the microorganisms and may include digests and extracts of commercially available brewers and bakers yeasts.
- materials that may be included in any amount or ratio include ammonium chloride, cobalt chloride, copper chloride, manganese sulfate, nickel chloride, nitrilotriacetic acid trisodium salt, potassium monophosphate, potassium diphosphate, sodium molybdate dihydrate, sodium tripolyphosphate, sodium tungstate, zinc sulfate, or some other phosphorus-containing compound, sodium-containing compound, sulfur-containing compound, or carboxylate-containing compounds, such as acetate and formate, for example.
- the aqueous materials as well as any of the incorporated materials may be provided to the formation in a single amendment, or they may be provided in separate stages.
- both the additional materials and the compound including the stable isotope may be incorporated within an aqueous material delivered into the formation environment.
- separate aqueous materials may be delivered into the formation environment with one including the compound including the stable isotope, and another including the additional materials.
- the compound including the stable isotope and additional materials are introduced to the formation simultaneously or separately, they may be combined in situ and exposed to microorganisms.
- the combination of the hydrogen and materials can stimulate the microorganisms to increase methane or other material production, which can then be recovered from the geologic formation, or further utilized by the microorganisms.
- the methods may also include measuring the concentration of methane or other target material prior to recovery of products from the formation environment.
- the partial pressure of the product in the formation may be measured, while aqueous metabolic products may involve measurements of molar concentrations. Measurements may be made before providing the amendment, and a comparison of the product concentration before and after the amendment may also be made.
- Additional operations that may be performed in some embodiments may include determining an amount of newly produced material from the formation environment.
- a calculation may be performed. For example, prior to delivering the aqueous solution, a concentration of deuterium or some other stable isotope within in-situ hydrocarbons, such as methane, or other materials may be identified.
- a concentration of deuterium or some other stable isotope within produced or recovered hydrocarbons, such as methane, or other materials may be identified.
- a determination of the amount of hydrocarbons or other materials resulting from increasing production within the formation environment may then be performed. For example, for a methane producing process, the following calculation may be performed: 100
- V may be a relative abundance of methane resulting from the stimulation
- Cold may be the concentration, such as in ppm, of deuterium or some other stable isotope in the in-situ methane prior to stimulation
- Cnew may be the concentration, such as in ppm, of deuterium or some other stable isotope in the produced methane from stimulation
- Cm may be the concentration, such as in ppm, of deuterium or some other stable isotope in the produced methane collected, and which may be a combination of the two other concentrations.
- Cmix and Cold may be directly measured from gas samples collected from the treated field, whereas Cnew may be calculated based on the deuterium in the aqueous solution and the measured deuterium content of the water in the formation, which may provide a dilution factor of the aqueous solution.
- FIG. 2 illustrates exemplary operations in a method 200 for producing hydrocarbon materials from a geologic formation.
- Method 200 may include any of the operations, materials, or characteristics discussed previously with respect to method 100.
- method 200 may include accessing microorganisms in a geologic formation that includes a carbonaceous material at operation 205. Measurements may be performed to detect, identify, or determine within the geologic formation a concentration of a material including a naturally occurring, stable isotope for one or more of the elements carbon, hydrogen, oxygen, nitrogen, or sulfur at operation 210.
- the element may not be a radioactive element.
- method 200 may include delivering an aqueous material into the reservoir at operation 215.
- the aqueous fluid may be characterized by or may include a compound including the naturally occurring, stable isotope for one or more of the elements carbon, hydrogen, oxygen, nitrogen, or sulfur.
- a number of different compounds may be included or provided in embodiments of the present technology.
- the compound may be or include one or more of water, and the stable isotope may be 2 H or 18 0, carbon dioxide, and the stable isotope may be 13 C or 18 0, molecular hydrogen, and the stable isotope may be 2 H, or acetic acid or its conjugate base, and the stable isotope may be 2 H or 13 C.
- Method 200 may include increasing production within the reservoir or any of the previously -noted materials, such as methane or some other byproduct in which the stable isotope may be included, at operation 220. Subsequently, a produced material may be recovered from the reservoir at operation 225, which may at least partially include produced material including the naturally occurring, stable isotope for one or more of the elements carbon, hydrogen, oxygen, nitrogen, or sulfur. An analysis may then be performed as described above to determine a relative amount of material produced, which may be directly attributed to the stimulation performed, and which may represent a renewable amount of material, which may be subsequently produced again by repeating one or more operations of the method.
- a relative amount of material produced which may be directly attributed to the stimulation performed, and which may represent a renewable amount of material, which may be subsequently produced again by repeating one or more operations of the method.
- Identifying where stimulation may be performed may include any number of factors.
- the stimulation or method may be performed in a region where production of material, such as methane or any other produce, may have decreased. This decrease in production may be indicative of a rollover effect.
- Rollover may be a condition where the rate of biogenic methane production starts to plateau as the in-situ methane concentration reaches a certain level. In many instances, the rate flattens to zero, and the methane concentration remains constant over time.
- the rollover point, or the point where the methane concentration may begin to break from a monotonically increasing state may vary between microorganism consortia, but may be reached in almost all unamended environments of carbonaceous material that have been examined. By performing any of the noted processes or methods, rollover may be reversed to increase production of methane once again.
- Uptake of the isotope may be affected by the formation environment through dilution by formation water or other materials. Accordingly, in some embodiments injection or delivery of the aqueous material may be provided to select locations of a reservoir or formation environment, which may be at least partially depleted in water. These locations may be readily available in coal-bed methane operation, as water pumping may be performed to cause the depressurization and release of the original gas reserve. Reservoir recharge can be observed and avoided to some extent, but in environments with significant water drives, D2O usage as an isotope marker may be challenged. Accordingly, in some embodiments a formation environment analysis may be performed to determine an amount of in-situ formation water, as well as any other number of characteristics as will be discussed further below.
- Coal maturation may afford smaller cleat volumes as a proportion of the total coal volume in the formation.
- This cleat volume may represent the entire space where biological activity takes place.
- the volume may also be the space that may be most likely to be contactable by an injection bolus of stimulation materials delivered. In very immature or extremely fractured coals, this volume may increase, meaning that the proportion of contacted microbes may decrease as compared to more mature coals.
- additional analysis may be performed on the maturity of the coal to identify preferential regions. For example, coal maturity where the coal may have reached sub-bituminous levels of maturity may increase the effects of the methods with regard to resulting methane responses.
- a corollary to this principle may be that with the use of D2O, any transport outside of the biologically relevant contacted surface area in cleats may result in losses, which may decrease biological transformation into detectable methane.
- Deuterium may be used as the stable isotope in some embodiments as many coal seams have multiple biological fractionation events over geologic periods of time. This may result in significant depletion of deuterium.
- Coal is a biomass derived product, and thus the original biomass growth may have fractionated isotopes, favoring 'H.
- the biodegradation of the coal may also favor 'H over 2 H.
- typical 5D values which may be parts per thousand differences from a reference standard, for biogenic methane may range from -150-450%o.
- a change of a few parts per million more deuterium than the environmental background may result in a measurable signal, and may result in improved accuracy and quantification of identified new gas produced.
- the amount of any particular dosage of D2O or other compound including a stable isotope may be included in an amount greater than a threshold to result in the generation of the desired product for measurement, such as DCFb, in the subsurface at levels that can be detected using existing gas and liquid isotope ratio methods noted above.
- a threshold to result in the generation of the desired product for measurement, such as DCFb, in the subsurface at levels that can be detected using existing gas and liquid isotope ratio methods noted above.
- a minimum enrichment of 1D:8000H in an injection of a bolus of stimulation chemicals may be sufficient to produce a measurable amount of enriched methane.
- this may be a value of approximately +1800%o over the reference standard, although the total observed change may be relatively small due to the large dilution effect of water in the coal seam, as well as dilution due to the presence of isotopically depleted methane.
- Any of the methods of the present technology may also include an analysis of the microorganism formation environment, which may include measuring the chemical composition that exists in the environment. This may include an in-situ analysis of the chemical environment, and/or extracting gases, liquids, and solid substrates from the formation for a remote analysis.
- extracted formation samples may be analyzed using spectrophotometry, NMR, HPLC, gas chromatography, mass spectrometry, voltammetry, and other chemical instrumentation.
- the tests may be used to determine the presence and relative concentrations of elements like dissolved carbon, phosphorous, nitrogen, sulfur, magnesium, manganese, iron, calcium, zinc, tungsten, cobalt and molybdenum, among other elements.
- the analysis may also be used to measure quantities of polyatomic ions such as PC 3 , PCh 3 , and PO4 3 , NH + , NO2 , NO3 , and SO4 2 , among other ions.
- the quantities of vitamins, and other nutrients may also be determined.
- An analysis of the pH, salinity, oxidation potential (Eh), and other chemical characteristics of the formation environment may also be performed.
- a biological analysis of the microorganisms may also be conducted. This may include a quantitative analysis of the population size determined by direct cell counting techniques, including the use of microscopy, DNA quantification, phospholipid fatty acid analysis, quantitative PCR, protein analysis, or any other identification mechanism.
- the identification of the genera and/or species of one or more members of the microorganism consortium by genetic analysis may also be conducted.
- an analysis of the DNA of the microorganisms may be done where the DNA is optionally cloned into a vector and suitable host cell to amplify the amount of DNA to facilitate detection.
- the detecting is of all or part of DNA or ribosomal genes of one or more microorganisms.
- Detection may be by use of any appropriate means known to the skilled person.
- Non-limiting examples include 16s Ribosomal DNA metagenomic sequencing; restriction fragment length polymorphism (RFLP) or terminal restriction fragment length polymorphism (TRFLP); polymerase chain reaction (PCR); DNA-DNA hybridization, such as with a probe, Southern analysis, or the use of an array, microchip, bead based array, or the like; denaturing gradient gel electrophoresis (DGGE); or DNA sequencing, including sequencing of cDNA prepared from RNA as non-limiting examples.
- RFLP restriction fragment length polymorphism
- TRFLP terminal restriction fragment length polymorphism
- PCR polymerase chain reaction
- DNA-DNA hybridization such as with a probe, Southern analysis, or the use of an array, microchip, bead based array, or the like
- DGGE denaturing gradient gel electrophoresis
- DNA sequencing including sequencing of cDNA prepared from RNA as non-limiting examples.
- the effect of the injected materials may be analyzed by measuring the concentration of a metabolic intermediary or metabolic product in the formation environment. If the product concentration and/or rate of product generation does not appear to be reaching a desired level, adjustments may be made to the composition of the amendment. For example, if a particular amendment of aqueous material does not appear to be providing the desired increase in methane production, dissolved hydrogen concentration may be adjusted within the aqueous fluid, or additional or alternative metals or other materials may be incorporated within the aqueous fluid.
- FIG. 3 is shown a chart illustrating a DNA sequencing profile for a microbial community within a formation environment according to some embodiments of the present technology.
- the archaeal profile is shown. Regions shaded similar to section 305 may represent archaeal species that may directly use materials provided or delivered to a formation environment as noted previously to produce methane.
- a treatment such as any of the treatments or aspects of treatments described above, that metabolic pathway may be the dominant pathway observed, as illustrated in the top bar for a reference treated well.
- the rest of the wells illustrated were dominated by the hydrogenotrophic pathway as described above, except for well 8.
- FIG. 4 is a chart illustrating another DNA sequencing profile for a microbial community within a formation environment according to some embodiments of the present technology. Two groups of microorganisms are identified in this chart. Regions shaded similar to section 405 may illustrate a portion of the community representing traditional fermentative eubacteria, which may facilitate the biodegradation process. The regions shaded similar to section 410 may also illustrate a portion of the community representing fermentative bacteria, however these species may be more likely to form syntrophic partnerships with methanogens to produce a beneficial metabolic arrangement, and which may further benefit from exposure to treatment materials described above. Finding these relationships may identify locations where a greater amount of methane or other materials may be produced using methods according to embodiments of the present technology. By utilizing aspects of the present technology, renewable methane and other material resources may be stimulated and utilized.
- any narrower range between any stated values or unstated intervening values in a stated range and any other stated or intervening value in that stated range is encompassed.
- the upper and lower limits of those smaller ranges may independently be included or excluded in the range, and each range where either, neither, or both limits are included in the smaller ranges is also encompassed within the technology, subject to any specifically excluded limit in the stated range. Where the stated range includes one or both of the limits, ranges excluding either or both of those included limits are also included.
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MX2022007279A MX2022007279A (en) | 2019-12-13 | 2020-12-14 | Methods and materials for producing identifiable methanogenic products. |
BR112022011667A BR112022011667A2 (en) | 2019-12-13 | 2020-12-14 | METHODS AND MATERIALS TO PRODUCE IDENTIFIABLE METHANOGEN PRODUCTS |
AU2020398966A AU2020398966A1 (en) | 2019-12-13 | 2020-12-14 | Methods and materials for producing identifiable methanogenic products |
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NO20220793A NO20220793A1 (en) | 2019-12-13 | 2020-12-14 | Methods and materials for producing identifiable methanogenic products |
ECSENADI202254942A ECSP22054942A (en) | 2019-12-13 | 2022-07-13 | METHODS AND MATERIALS TO PRODUCE IDENTIFIABLE METHANOGENIC PRODUCTS |
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US6143534A (en) * | 1985-01-22 | 2000-11-07 | Reliant Energy Incorporated | Microbial process for producing methane from coal |
US20090308598A1 (en) * | 2008-06-17 | 2009-12-17 | Robert Gardes | Process to Increase the Area of Microbial Stimulation in Methane Gas Recovery in a Multi Seam Coal Bed/methane Dewatering and Depressurizing Production System Through the Use of Horizontal or Multilateral Wells |
US20120036923A1 (en) * | 2009-04-23 | 2012-02-16 | The Regents Of The University Of California | Tracer method to estimate rates of methane generation through augmentation or biostimulation of the sub-surface |
US20120083041A1 (en) * | 2010-10-01 | 2012-04-05 | Synthetic Genomics, Inc. | Mass spectrometry method |
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US6143534A (en) * | 1985-01-22 | 2000-11-07 | Reliant Energy Incorporated | Microbial process for producing methane from coal |
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US20120036923A1 (en) * | 2009-04-23 | 2012-02-16 | The Regents Of The University Of California | Tracer method to estimate rates of methane generation through augmentation or biostimulation of the sub-surface |
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