Results 191 to 200 of about 3,983 (210)
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Journal of Petroleum Science and Engineering, 2019
Abstract Slotting–directional hydraulic fracturing (SDHF) is a promising technology for extracting CBM, because it can achieve directional propagation of fractures, and solve the problem of non-uniform permeability enhancement in hydraulic fracturing.
Zhaolong Ge +6 more
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Abstract Slotting–directional hydraulic fracturing (SDHF) is a promising technology for extracting CBM, because it can achieve directional propagation of fractures, and solve the problem of non-uniform permeability enhancement in hydraulic fracturing.
Zhaolong Ge +6 more
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The 2nd International Conference on Information Science and Engineering, 2010
The accurate prediction of Coalbed methane vertical well production water is an important guarantee for reasonable work and CBM high-production during the drainage gas recovery. Based on different logging response in different coal reservoir, using logging curve, original permeability of the coal reservoir is predicted.
null Chen Peng +2 more
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The accurate prediction of Coalbed methane vertical well production water is an important guarantee for reasonable work and CBM high-production during the drainage gas recovery. Based on different logging response in different coal reservoir, using logging curve, original permeability of the coal reservoir is predicted.
null Chen Peng +2 more
openaire +1 more source
Review of Scientific Instruments
Developing coalbed methane (CBM) aligns with global climate change policies and sustainable energy development. Currently, methods for testing gas and water production profiles in CBM wells are diverse. A downhole constant-flow thermal mass flowmeter (TMF) was designed to address the difficulty of testing gas production above the liquid level in low ...
Lei Li, Ming Wang, Dahai Wang
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Developing coalbed methane (CBM) aligns with global climate change policies and sustainable energy development. Currently, methods for testing gas and water production profiles in CBM wells are diverse. A downhole constant-flow thermal mass flowmeter (TMF) was designed to address the difficulty of testing gas production above the liquid level in low ...
Lei Li, Ming Wang, Dahai Wang
openaire +2 more sources
SPE Asia Pacific Oil and Gas Conference and Exhibition, 2010
Abstract Detecting and locating microseismic events that occur during a hydraulic treatment of a coalbed-methane (CBM) formation can be challenging because of the special properties of the formation itself and the specific treatment parameters.
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Abstract Detecting and locating microseismic events that occur during a hydraulic treatment of a coalbed-methane (CBM) formation can be challenging because of the special properties of the formation itself and the specific treatment parameters.
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Energy & Fuels, 2017
Gas flow in coal seam consists of laminar flow through coal cleat and diffusion through pores of coal matrix. Previous studies on the prediction of CBM production mostly focused on the impact of permeability change while the gas exchange between matrix and cleat was assumed to obey unipore diffusion assumption with a single diffusion coefficient ...
Gongda Wang +4 more
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Gas flow in coal seam consists of laminar flow through coal cleat and diffusion through pores of coal matrix. Previous studies on the prediction of CBM production mostly focused on the impact of permeability change while the gas exchange between matrix and cleat was assumed to obey unipore diffusion assumption with a single diffusion coefficient ...
Gongda Wang +4 more
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Journal of Petroleum Science and Engineering, 2012
Abstract The accumulation of CBM depends on a favorable combination of the right properties of the coal that produces and reservoirs CBM, an adequate pressure and temperature regime and the right preservation conditions. Recent exploration has shown that there are widespread CBM accumulations in synclines world wide. The favorable trapping mechanisms
Yan Song +6 more
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Abstract The accumulation of CBM depends on a favorable combination of the right properties of the coal that produces and reservoirs CBM, an adequate pressure and temperature regime and the right preservation conditions. Recent exploration has shown that there are widespread CBM accumulations in synclines world wide. The favorable trapping mechanisms
Yan Song +6 more
openaire +1 more source
Applied Mechanics and Materials, 2013
This paper discusses the structural characteristics and tectonic evolution, as well as the accumulation history and preservation conditions of coalbed methane (CBM) in Zhengzhuang block located in southeastern Qinshui basin. Deformed by the Hercynian, Indo-China, Yanshan and Himalayan four tectonic movements, the study area emerges the structure ...
Hong Wei Zhang +5 more
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This paper discusses the structural characteristics and tectonic evolution, as well as the accumulation history and preservation conditions of coalbed methane (CBM) in Zhengzhuang block located in southeastern Qinshui basin. Deformed by the Hercynian, Indo-China, Yanshan and Himalayan four tectonic movements, the study area emerges the structure ...
Hong Wei Zhang +5 more
openaire +1 more source
Proceedings of SPE Eastern Regional Meeting, 2006
Abstract Operators of shallow, low flow oil and gas wells have commonly relied on conventional beam pump and other artificial lift methods to produce these types of wells. Often, the use of these pumping systems results in inefficiencies, short run-life and environmental challenges that affect the overall economics of the operation.
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Abstract Operators of shallow, low flow oil and gas wells have commonly relied on conventional beam pump and other artificial lift methods to produce these types of wells. Often, the use of these pumping systems results in inefficiencies, short run-life and environmental challenges that affect the overall economics of the operation.
openaire +1 more source
Asia Pacific Oil and Gas Conference & Exhibition, 2009
Abstract The increase of successful exploration and economical importance of coalbed methane makes the understanding of petrophysical properties-stress-dependent more essential. This paper presents the results of experimental investigations into the influence of net stress on porosity, permeability, and reservoir quality ...
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Abstract The increase of successful exploration and economical importance of coalbed methane makes the understanding of petrophysical properties-stress-dependent more essential. This paper presents the results of experimental investigations into the influence of net stress on porosity, permeability, and reservoir quality ...
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2017 25th International Conference on Geoinformatics, 2017
Coalbed methane (CBM) productivity is the comprehensive indicator for measuring potential gas production of CBM wells. The productivity directly affects the economic benefits of CBM project. Thus, the development of an effective CBM productivity prediction model presents guiding significance to the exploration and development of CBM Wells. CBM is saved
Haoming Xia +4 more
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Coalbed methane (CBM) productivity is the comprehensive indicator for measuring potential gas production of CBM wells. The productivity directly affects the economic benefits of CBM project. Thus, the development of an effective CBM productivity prediction model presents guiding significance to the exploration and development of CBM Wells. CBM is saved
Haoming Xia +4 more
openaire +1 more source