Numerical study on the development of coalbed methane in multilateral horizontal wells considering coal seam cleats [PDF]
There are various forms of multilateral horizontal wells for developing coalbed methane, and the role of cleats in the development process is unclear.
Dandan DONG +5 more
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Research on key technology for efficient drilling and completion well of L-shaped horizontal well of surface mining [PDF]
The L-shaped horizontal shaft of surface mining is an effective technical means to realize the corner gas control in the upper corner of coal mining face.
Jing ZHANG, Yi WANG, Yuanzhi ZHANG
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Seepage model and productivity prediction of fractured wells in shale gas reservoirs with discontinuous micro-fractures [PDF]
, 2016 A dual-porosity medium with micro-fractured spherical matrix blocks was achieved on the basis of the structure characteristics of nano-micro pores and micro-fractures in shale gas reservoirs.
DENG Jia, MA Qian, QI Qian, ZHU Wei-yao
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Critical technologies and geology-engineering integration practices for deep CBM production in the Yanchuannan CBM field [PDF]
Objective and Methods This study introduces the adjustments for coalbed methane (CBM) production in the Yanchuannan CBM field‒the first deep CBM field in China.
Bin CUI +6 more
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Progress and trend of key technologies of CBM development and utilization in China coal mine areas [PDF]
, 2022 The key to coordinated development of coal mine methane and coal is to coordinate the spatio-temporal relationship between coal mining and coal mine methane development.
Haitao SUN +3 more
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Study on technology and effect of gas extraction in horizontal well with segmental hydraulic fracture in roof of coal seam in Huainan mining area [PDF]
Huainan mining area is a typical high-gas area, with broken soft coal seam, low permeability, high gas content, and difficulty in extraction. In order to probe into the technical feasibility and gas control effect of the horizontal well for segmental ...
Benliang CHEN +7 more
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China’s CBM exploration and production and associated technological advancements: A review and reflections [PDF]
Objective and Methods Based on extensive scientific and technical literature and technical data on coalbed methane (CBM) exploration and production projects, this study conducted a comparative analysis of the development process and latest advances in ...
Jianping YE
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Extraction mode and engineering demonstration of pressure relief three-dimensional of multi-coal seams in Pingdingshan mining area [PDF]
There are many coal seams and gas-bearing strata in Pingdingshan mining area, and the amount of underground gas control project is large and difficult.
Jinsheng JIA, Xiaoming NI, Yanhe LI
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Fluid–solid coupling productivity analysis of multi-stage fractured horizontal wells in shale reservoirs [PDF]
Starting from the micro/macro dynamics of seepage behavior, stress-sensitive experiments are conducted to investigate the fluid–solid coupling and fluid flow law in shale gas reservoirs.
Ming YUE +3 more
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Review and prospect of coal rock hydraulic fracturing physical experimental research [PDF]
, 2022 Physical simulation of hydraulic fracturing is an approximate representation of fracture evolution and its dynamic process, which represents an important direction of fracture evolution research.
Le LIU +8 more
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