CA2196369A1 - Chemically induced stimulation of coal cleat formation - Google Patents
Chemically induced stimulation of coal cleat formationInfo
- Publication number
- CA2196369A1 CA2196369A1 CA002196369A CA2196369A CA2196369A1 CA 2196369 A1 CA2196369 A1 CA 2196369A1 CA 002196369 A CA002196369 A CA 002196369A CA 2196369 A CA2196369 A CA 2196369A CA 2196369 A1 CA2196369 A1 CA 2196369A1
- Authority
- CA
- Canada
- Prior art keywords
- formation
- coal
- chemically induced
- induced stimulation
- cleats
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000015572 biosynthetic process Effects 0.000 title abstract 9
- 239000003245 coal Substances 0.000 title abstract 7
- 230000000638 stimulation Effects 0.000 title 1
- 238000005755 formation reaction Methods 0.000 abstract 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract 4
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical class OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 abstract 2
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- 239000007800 oxidant agent Substances 0.000 abstract 2
- 230000001590 oxidative effect Effects 0.000 abstract 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical class [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical class [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 239000008398 formation water Substances 0.000 abstract 1
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical class ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 abstract 1
- 239000001301 oxygen Chemical class 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 230000004936 stimulating effect Effects 0.000 abstract 1
Classifications
-
- 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
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/84—Compositions based on water or polar solvents
- C09K8/845—Compositions based on water or polar solvents containing inorganic compounds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C1/00—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon
-
- 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
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/62—Compositions for forming crevices or fractures
- C09K8/66—Compositions based on water or polar solvents
- C09K8/665—Compositions based on water or polar solvents containing inorganic compounds
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/006—Production of coal-bed methane
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/17—Interconnecting two or more wells by fracturing or otherwise attacking the formation
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
- E21B43/27—Methods for stimulating production by forming crevices or fractures by use of eroding chemicals, e.g. acids
Abstract
A method for increasing the production of methane from a subterranean coal formation by chemically stimulating the formation of cleats in the coal formation in order to facilitate removal of formation water, and increase the rate of methaneproduction from the coal formation.
The method comprises injecting an aqueous oxidant solution into the coal formations to stimulate the formation of cleats in the coal formation; and thereafter producing methane from the coal formations at an increased rate. The aqueous oxidant solution preferably comprises hypochlorite, metaic salts of hypochlorous acid, hydrogen peroxide, ozone, oxygen and combinations thereof.
The method comprises injecting an aqueous oxidant solution into the coal formations to stimulate the formation of cleats in the coal formation; and thereafter producing methane from the coal formations at an increased rate. The aqueous oxidant solution preferably comprises hypochlorite, metaic salts of hypochlorous acid, hydrogen peroxide, ozone, oxygen and combinations thereof.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/594,725 US5669444A (en) | 1996-01-31 | 1996-01-31 | Chemically induced stimulation of coal cleat formation |
US08/594,725 | 1996-01-31 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2196369A1 true CA2196369A1 (en) | 1997-08-01 |
CA2196369C CA2196369C (en) | 2002-07-23 |
Family
ID=24380122
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002196369A Expired - Fee Related CA2196369C (en) | 1996-01-31 | 1997-01-30 | Chemically induced stimulation of coal cleat formation |
Country Status (11)
Country | Link |
---|---|
US (1) | US5669444A (en) |
CN (1) | CN1082605C (en) |
AU (1) | AU1241297A (en) |
CA (1) | CA2196369C (en) |
DE (1) | DE19703448C2 (en) |
EA (1) | EA000054B1 (en) |
GB (1) | GB2309719B (en) |
IN (1) | IN191373B (en) |
PL (1) | PL185041B1 (en) |
UA (1) | UA45348C2 (en) |
ZA (1) | ZA97789B (en) |
Families Citing this family (39)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5967233A (en) * | 1996-01-31 | 1999-10-19 | Vastar Resources, Inc. | Chemically induced stimulation of subterranean carbonaceous formations with aqueous oxidizing solutions |
US5944104A (en) * | 1996-01-31 | 1999-08-31 | Vastar Resources, Inc. | Chemically induced stimulation of subterranean carbonaceous formations with gaseous oxidants |
US5865248A (en) * | 1996-01-31 | 1999-02-02 | Vastar Resources, Inc. | Chemically induced permeability enhancement of subterranean coal formation |
US5964290A (en) * | 1996-01-31 | 1999-10-12 | Vastar Resources, Inc. | Chemically induced stimulation of cleat formation in a subterranean coal formation |
DE19842435B4 (en) * | 1997-09-22 | 2008-04-10 | Vastar Resources, Inc., Houston | Chemically induced stimulation of subterranean carbonaceous formations with aqueous, oxidizing solutions |
US8297377B2 (en) | 1998-11-20 | 2012-10-30 | Vitruvian Exploration, Llc | Method and system for accessing subterranean deposits from the surface and tools therefor |
US6425448B1 (en) | 2001-01-30 | 2002-07-30 | Cdx Gas, L.L.P. | Method and system for accessing subterranean zones from a limited surface area |
US6598686B1 (en) | 1998-11-20 | 2003-07-29 | Cdx Gas, Llc | Method and system for enhanced access to a subterranean zone |
US7048049B2 (en) | 2001-10-30 | 2006-05-23 | Cdx Gas, Llc | Slant entry well system and method |
US8376052B2 (en) | 1998-11-20 | 2013-02-19 | Vitruvian Exploration, Llc | Method and system for surface production of gas from a subterranean zone |
US7025154B2 (en) | 1998-11-20 | 2006-04-11 | Cdx Gas, Llc | Method and system for circulating fluid in a well system |
US6662870B1 (en) | 2001-01-30 | 2003-12-16 | Cdx Gas, L.L.C. | Method and system for accessing subterranean deposits from a limited surface area |
US6681855B2 (en) | 2001-10-19 | 2004-01-27 | Cdx Gas, L.L.C. | Method and system for management of by-products from subterranean zones |
US6679322B1 (en) | 1998-11-20 | 2004-01-20 | Cdx Gas, Llc | Method and system for accessing subterranean deposits from the surface |
US6454000B1 (en) | 1999-11-19 | 2002-09-24 | Cdx Gas, Llc | Cavity well positioning system and method |
US6708764B2 (en) | 2002-07-12 | 2004-03-23 | Cdx Gas, L.L.C. | Undulating well bore |
US6280000B1 (en) | 1998-11-20 | 2001-08-28 | Joseph A. Zupanick | Method for production of gas from a coal seam using intersecting well bores |
DE60121423T2 (en) * | 2000-02-25 | 2007-02-15 | Sofitech N.V., Uccle | FOAMS FOR USE IN COAL LUBRICATIONS |
US6412556B1 (en) | 2000-08-03 | 2002-07-02 | Cdx Gas, Inc. | Cavity positioning tool and method |
US6591903B2 (en) | 2001-12-06 | 2003-07-15 | Eog Resources Inc. | Method of recovery of hydrocarbons from low pressure formations |
US6725922B2 (en) | 2002-07-12 | 2004-04-27 | Cdx Gas, Llc | Ramping well bores |
US8333245B2 (en) | 2002-09-17 | 2012-12-18 | Vitruvian Exploration, Llc | Accelerated production of gas from a subterranean zone |
CN100351491C (en) * | 2002-12-13 | 2007-11-28 | 石油大学(北京) | Thermal recovery method for coal seam gas |
CN100347402C (en) * | 2002-12-13 | 2007-11-07 | 石油大学(北京) | Thermal recovery method for coal seam gas |
US7051809B2 (en) * | 2003-09-05 | 2006-05-30 | Conocophillips Company | Burn assisted fracturing of underground coal bed |
US20050082058A1 (en) * | 2003-09-23 | 2005-04-21 | Bustin Robert M. | Method for enhancing methane production from coal seams |
US7185702B2 (en) * | 2005-02-25 | 2007-03-06 | Halliburton Energy Services, Inc. | Methods and compositions for the in-situ thermal stimulation of hydrocarbons using peroxide-generating compounds |
US7681639B2 (en) * | 2008-06-17 | 2010-03-23 | Innovative Drilling Technologies LLC | 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 |
CN102105559B (en) * | 2008-07-28 | 2014-06-25 | 福布斯油气私人有限公司 | Apparatus for liquefaction of carbonaceous material |
WO2010027455A1 (en) * | 2008-09-04 | 2010-03-11 | Ciris Energy, Inc. | Solubilization of algae and algal materials |
EA201290503A1 (en) * | 2009-12-15 | 2012-12-28 | Шеврон Ю.Эс.Эй. Инк. | SYSTEM, METHOD AND CONFIGURATION FOR MAINTENANCE AND OPERATION OF BOTTLES |
CA2784061A1 (en) | 2009-12-18 | 2011-06-23 | Ciris Energy, Inc. | Biogasification of coal to methane and other useful products |
CN102162351A (en) * | 2011-03-15 | 2011-08-24 | 彭仁田 | Application of hydrogen peroxide to thickened oil dilution |
CN105422067B (en) * | 2015-12-29 | 2017-11-28 | 中国石油大学(华东) | The method of active water displacement exploiting coal bed methane |
CN107165613B (en) * | 2017-07-07 | 2023-03-14 | 新疆国利衡清洁能源科技有限公司 | Safety guarantee system for underground coal gasification mine type gasification furnace and implementation method |
CN107325851A (en) * | 2017-08-25 | 2017-11-07 | 太原理工大学 | A kind of method that biological methane yield is improved by raw material of liquefaction coal |
RU2689012C1 (en) * | 2018-02-19 | 2019-05-23 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Кубанский государственный технологический университет" (ФГБОУ ВО "КубГТУ") | Gas production method of gas at hydrate deposits |
CN109779594A (en) * | 2019-01-31 | 2019-05-21 | 中国科学技术大学 | Fracturing technology, device for producing hydrogen |
CN114856499A (en) * | 2022-05-12 | 2022-08-05 | 重庆大学 | Method for improving yield of coal-bed gas well by generating carbon dioxide through in-situ oxidation |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4032193A (en) * | 1974-03-28 | 1977-06-28 | Shell Oil Company | Coal disaggregation by basic aqueous solution for slurry recovery |
US4043395A (en) * | 1975-03-13 | 1977-08-23 | Continental Oil Company | Method for removing methane from coal |
NL7800005A (en) * | 1978-01-02 | 1979-07-04 | Stamicarbon | PROCEDURE FOR GETTING METHANE IN SITU FROM GREAT DEPTH CARBON LAYERS. |
US4440651A (en) * | 1980-09-08 | 1984-04-03 | Standard Oil Company | Use of peroxide in waterflood oil recovery |
US4424863A (en) * | 1981-10-06 | 1984-01-10 | Mobil Oil Corporation | Oil recovery by waterflooding |
US4537252A (en) * | 1982-04-23 | 1985-08-27 | Standard Oil Company (Indiana) | Method of underground conversion of coal |
US4662439A (en) * | 1984-01-20 | 1987-05-05 | Amoco Corporation | Method of underground conversion of coal |
US4747642A (en) * | 1985-02-14 | 1988-05-31 | Amoco Corporation | Control of subsidence during underground gasification of coal |
US4662443A (en) * | 1985-12-05 | 1987-05-05 | Amoco Corporation | Combination air-blown and oxygen-blown underground coal gasification process |
US4765407A (en) * | 1986-08-28 | 1988-08-23 | Amoco Corporation | Method of producing gas condensate and other reservoirs |
US4762543A (en) * | 1987-03-19 | 1988-08-09 | Amoco Corporation | Carbon dioxide recovery |
US4883122A (en) * | 1988-09-27 | 1989-11-28 | Amoco Corporation | Method of coalbed methane production |
US5014788A (en) * | 1990-04-20 | 1991-05-14 | Amoco Corporation | Method of increasing the permeability of a coal seam |
US5099921A (en) * | 1991-02-11 | 1992-03-31 | Amoco Corporation | Recovery of methane from solid carbonaceous subterranean formations |
US5332036A (en) * | 1992-05-15 | 1994-07-26 | The Boc Group, Inc. | Method of recovery of natural gases from underground coal formations |
GB9319696D0 (en) * | 1993-09-23 | 1993-11-10 | Petroleum Recovery Inst | Process of well stimulation by chemically removing pyrobitu-men from subterranean formation for oil fields |
US5416286A (en) * | 1993-10-19 | 1995-05-16 | Dixon, Jr.; Alfred R. | High amperage, high efficiency electrical slide switch assembly with plug and socket contacts |
US5388642A (en) * | 1993-11-03 | 1995-02-14 | Amoco Corporation | Coalbed methane recovery using membrane separation of oxygen from air |
US5388645A (en) * | 1993-11-03 | 1995-02-14 | Amoco Corporation | Method for producing methane-containing gaseous mixtures |
US5419396A (en) * | 1993-12-29 | 1995-05-30 | Amoco Corporation | Method for stimulating a coal seam to enhance the recovery of methane from the coal seam |
US5417286A (en) * | 1993-12-29 | 1995-05-23 | Amoco Corporation | Method for enhancing the recovery of methane from a solid carbonaceous subterranean formation |
US5439054A (en) * | 1994-04-01 | 1995-08-08 | Amoco Corporation | Method for treating a mixture of gaseous fluids within a solid carbonaceous subterranean formation |
US5501273A (en) * | 1994-10-04 | 1996-03-26 | Amoco Corporation | Method for determining the reservoir properties of a solid carbonaceous subterranean formation |
-
1996
- 1996-01-31 US US08/594,725 patent/US5669444A/en not_active Expired - Lifetime
-
1997
- 1997-01-29 GB GB9701833A patent/GB2309719B/en not_active Expired - Fee Related
- 1997-01-29 EA EA199700009A patent/EA000054B1/en not_active IP Right Cessation
- 1997-01-30 AU AU12412/97A patent/AU1241297A/en not_active Abandoned
- 1997-01-30 CN CN97102507A patent/CN1082605C/en not_active Expired - Fee Related
- 1997-01-30 IN IN177CA1997 patent/IN191373B/en unknown
- 1997-01-30 CA CA002196369A patent/CA2196369C/en not_active Expired - Fee Related
- 1997-01-30 ZA ZA97789A patent/ZA97789B/en unknown
- 1997-01-30 PL PL97318207A patent/PL185041B1/en not_active IP Right Cessation
- 1997-01-30 UA UA97010369A patent/UA45348C2/en unknown
- 1997-01-30 DE DE19703448A patent/DE19703448C2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN1082605C (en) | 2002-04-10 |
GB2309719A (en) | 1997-08-06 |
EA000054B1 (en) | 1998-04-30 |
US5669444A (en) | 1997-09-23 |
ZA97789B (en) | 1998-07-30 |
UA45348C2 (en) | 2002-04-15 |
PL318207A1 (en) | 1997-08-04 |
IN191373B (en) | 2003-11-29 |
CN1165236A (en) | 1997-11-19 |
EA199700009A1 (en) | 1997-09-30 |
GB2309719B (en) | 1999-07-21 |
DE19703448C2 (en) | 2000-02-17 |
AU1241297A (en) | 1997-08-07 |
DE19703448A1 (en) | 1997-08-07 |
PL185041B1 (en) | 2003-02-28 |
GB9701833D0 (en) | 1997-03-19 |
CA2196369C (en) | 2002-07-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |
Effective date: 20160201 |