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Journal of Canadian Petroleum Technology, 2010
Summary One of the horizons of interest for future unconventional-resource development is deep- (> 5,000 ft) coalbed-methane (CBM) production. Unfortunately, coal permeability is highly sensitive to changes in stress, leading to the belief of limited permeability in deep coals.
R. R. Tonnsen, J. L. Miskimins
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Summary One of the horizons of interest for future unconventional-resource development is deep- (> 5,000 ft) coalbed-methane (CBM) production. Unfortunately, coal permeability is highly sensitive to changes in stress, leading to the belief of limited permeability in deep coals.
R. R. Tonnsen, J. L. Miskimins
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Study on Evaluation System for Coalbed Methane from Deep Coal Seams in China
Advanced Materials Research, 2014In this study, data from 244 CBM production wells were collected and analyzed in China. Based on the data, coalbed methane (CBM) reservoir properties and geological factors were studied. Combined with previous study results, the current situation of CBM resource evaluation, the classification of evaluation indexes and evaluation standard were analyzed.
Xue Zheng Zhu +2 more
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Journal of Energy Resources Technology, 2021
Abstract The borehole stability of the coalbed methane (CBM) well has always been vital in deep CBM exploration and development. The borehole instability of the deep CBM well is due to many complicated reasons. The change in the surrounding rock temperature is an important and easily overlooked factor among many reasons. In this research,
Cuinan Li +6 more
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Abstract The borehole stability of the coalbed methane (CBM) well has always been vital in deep CBM exploration and development. The borehole instability of the deep CBM well is due to many complicated reasons. The change in the surrounding rock temperature is an important and easily overlooked factor among many reasons. In this research,
Cuinan Li +6 more
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Gas Transportation and Enhanced Coalbed Methane Recovery Processes in Deep Coal Seams: A Review
Energy & Fuels, 2016Coalbed methane (CBM) is a potential green energy supply for addressing the worldwide energy crisis. However, the recovery of economically viable amounts of methane requires the application of production-enhancement techniques. The greater effectiveness of enhanced coalbed methane (ECBM) recovery compared to traditional pressure depletion and hydraulic
Mandadige Samintha Anne Perera +5 more
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International Journal of Coal Geology, 2014
Abstract The Dacheng Salient of the northeast Jizhong Depression is one of the most promising areas for deep coalbed methane (CBM) development in China. This work investigates the Permo-Carboniferous (C-P) Taiyuan and Shanxi Formation coals and CBM geology and gas accumulation characteristics in the Dacheng Salient based on field data from 24 wells ...
Qiulei Guo +5 more
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Abstract The Dacheng Salient of the northeast Jizhong Depression is one of the most promising areas for deep coalbed methane (CBM) development in China. This work investigates the Permo-Carboniferous (C-P) Taiyuan and Shanxi Formation coals and CBM geology and gas accumulation characteristics in the Dacheng Salient based on field data from 24 wells ...
Qiulei Guo +5 more
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Journal of Natural Gas Science and Engineering, 2021
Abstract The objective of this study is to reveal the implications of geological conditions on gas content and geochemistry of deep coalbed methane (CBM) reservoirs. It is of great practical significances to improve the theory and technology for deep CBM development.
Huihu Liu +6 more
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Abstract The objective of this study is to reveal the implications of geological conditions on gas content and geochemistry of deep coalbed methane (CBM) reservoirs. It is of great practical significances to improve the theory and technology for deep CBM development.
Huihu Liu +6 more
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Energy Conversion and Management, 1997
Abstract A huge incentive to develop Alberta's deep coalbed methane (CBM) resources is found in evolving enhanced gas recovery (EGR) technologies using CO2 injection, somewhat similar to enhanced oil recovery (EOR). However, unlike CO2-EOR where CO2-breakthru eventually occurs, the injected CO2 is sequestered in the reservoir by sorption to the coal ...
R.J.H Richardson +3 more
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Abstract A huge incentive to develop Alberta's deep coalbed methane (CBM) resources is found in evolving enhanced gas recovery (EGR) technologies using CO2 injection, somewhat similar to enhanced oil recovery (EOR). However, unlike CO2-EOR where CO2-breakthru eventually occurs, the injected CO2 is sequestered in the reservoir by sorption to the coal ...
R.J.H Richardson +3 more
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Chemistry and Technology of Fuels and Oils, 2019
In this paper, we propose a method for multi-vertical well synchronous hydraulic fracturing and compare with synchronous fracturing technologies used in shale. Based on theoretical analysis and triaxial fracturing experiments, we have shown that “face interference” in multi-vertical well synchronous fracturing helps to connect the cleats and generate ...
Xiaogang Li +5 more
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In this paper, we propose a method for multi-vertical well synchronous hydraulic fracturing and compare with synchronous fracturing technologies used in shale. Based on theoretical analysis and triaxial fracturing experiments, we have shown that “face interference” in multi-vertical well synchronous fracturing helps to connect the cleats and generate ...
Xiaogang Li +5 more
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AAPG Bulletin, 2005
The permeability of deep (1000 m; 3300 ft) coal seams is commonly low. For deep coal seams, significant reservoir pressure drawdown is required to promote gas desorption because of the Langmuir-type isotherm that typifies coals. Hence, a large permeability decline may occur because of pressure drawdown and the resulting increase in effective stress ...
Xiaojun Cui, R. Marc Bustin
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The permeability of deep (1000 m; 3300 ft) coal seams is commonly low. For deep coal seams, significant reservoir pressure drawdown is required to promote gas desorption because of the Langmuir-type isotherm that typifies coals. Hence, a large permeability decline may occur because of pressure drawdown and the resulting increase in effective stress ...
Xiaojun Cui, R. Marc Bustin
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Deep Coalbed Methane Reservoir Stimulation Technology In Shenfu Block
International Petroleum Technology ConferenceAbstract With the continuous deepening of exploration and development, the availability of medium and shallow coalbed methane sources for scale benefit development is decreasing, and the coalbed methane exploration field in China has gradually changed from shallow to deep.
F. Yang, B. Li, Z. Hao
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