Results 111 to 120 of about 4,868 (217)

Characterization of brittleness property for deep coalbed methane reservoirs based on ultrasonic test data

矿业科学学报
To explore the brittleness and its anisotropy of deep coalbed methane reservoir, the effects of parameters such as the total content of organic matter and clay and the preferred orientation degree, equivalent porosity and pore aspect ratio on the ...
GUO Yonghong, WANG Guowei, ZHANG Yingchun, LIU Yi, ZHANG Le, YANG Xiaoyong, CHEN Hao   +6 more
doaj   +1 more source

Deep coalbed methane resource and its exploration and development prospect in East China

Youqicang pingjia yu kaifa, 2023
Deep coalbed methane（CBM） development in East China is of great significance to ensure regional energy demand, optimize regional energy structure and realize the dual carbon goal. Based on the systematic investigation and previous works, the current situations of CBM extraction in East China were summarized, and the gas-bearing attributes and resources
openaire   +1 more source

Study of the Methane Adsorption Characteristics in a Deep Coal Reservoir Using Adsorption Potential Theory

Applied Sciences
The gas adsorption characteristics in deep coal reservoirs are the focus of deep coalbed methane geology research. In order to reveal the adsorption characteristics in deep coal reservoirs and quantitatively characterize the amount of adsorbed methane in
Zhengjiang Long, Xushuang Zhu, Junqiao Liao, Dingnan Ye, Run Chen   +4 more
doaj   +1 more source

Analysis of Occurrence of Deep Coalbed Methane and Its “Desorption–Diffusion–Seepage” Process

Separations
China has abundant deep coalbed methane (CBM) resources; however, high temperature, stress, and reservoir pressure complicate the gas adsorption–desorption–diffusion–seepage processes, severely restricting the development of deep CBM. Through experimental research on adsorption, desorption, diffusion, and seepage behaviors of various coal samples, the ...
Bingwen Zhang, Tao Jiang, Li Niu, Sha Li, Shu Tao   +4 more
openaire   +1 more source

Progress and insights from worldwide deep coalbed methane exploration and development

Shiyou shiyan dizhi
Since 2021, China has achieved significant breakthroughs in deep coalbed methane (CBM) exploration and development, making it a strategic resource for increasing natural gas reserves and production. To further support the high-quality development of deep CBM in China, it is urgent to study the CBM resource endowments and exploration and development ...
Jiaqi ZHANG, Zengqin LIU, Baojian SHEN, Shihu ZHAO, Xinjun CHEN, Jincheng YE   +5 more
openaire   +1 more source

Research on a Sand-Carrying Model of Horizontal Sections of Deep Coalbed Methane Wells

Processes
Deep coalbed methane wells often encounter challenges such as inefficient sand transport and sand accumulation in the horizontal sections during drainage, which significantly impact the stability of gas production and the efficiency of the gas lift system.
Longfei Sun, Weilin Qi, Wei Qi, Li Hao, Anda Tang, Lin Yang, Kang Zhang, Yun Zhang   +7 more
openaire   +1 more source

Developing and Producing Coalbed Gas: Ownership, Regulation, and Environmental Concerns [PDF]

, 1984
Cohen, Harry
core   +2 more sources

Current status and development trends of deep coalbed methane research in China

Shiyou shiyan dizhi
Deep coalbed methane (CBM) possesses enormous resource potential and is essential for increasing unconventional natural gas reserves and production on a large scale in China. To understand the current status of CBM research and development in China, systematic retrieval and classification of deep CBM-related publications are conducted using the China ...
Wei JU, Shu TAO, Zhaobiao YANG, Jiayao CHENG, Haiyan SHANG, Weike NING, Chunlong WU   +6 more
openaire   +1 more source

Research on Wellbore Stability Prediction of Deep Coalbed Methane Under Multifactor Influences

Applied Sciences
To address the problem of wellbore instability in the development of deep coalbed methane reservoirs in Daniudi gas field, this study takes the coal seam cores from Member 1 of the Taiyuan Formation at a depth of approximately 2880 m as the research object.
Xugang Liu, Binghua Dang, Lei Li, Shuo Bai, Qiang Tan, Qinghua Sun   +5 more
openaire   +1 more source

Prediction of geological and engineering integrated sweet spots of deep coalbed methane

Meitian dizhi yu kantan
ObjectiveDeep coalbed methane (CBM) has emerged as a hot topic in CBM resource development. However, deep CBM has characteristics such as great burial depths, complex stress environments, and strong reservoir heterogeneity, which seriously restrict sweet spot prediction and accurate well location deployment in its large-scale exploitation.
Zhengrong CHEN, Wei LIU, Xueshen ZHU, Yongjing TIAN, Xin XIE   +4 more
openaire   +1 more source