Results 21 to 30 of about 246,283 (173)

Geological characteristics and development effect evaluation of coalbed methane reservoirs in Panguan syncline, Guizhou Province

Shiyou shiyan dizhi
The Upper Permian Longtan Formation in Guizhou Province contains multiple coal seams with abundant coalbed methane (CBM) resources, providing a solid base for CBM development.
Haiyang HU, Fuqin YANG, Jie CHEN, Yi LOU, Yuting WAN   +4 more
doaj   +1 more source

Influence of depressurization rate on gas production capacity of high-rank coal in the south of Qinshui Basin, China

Petroleum Exploration and Development, 2019
A desorption simulation experiment with the condition of simulated strata was designed. The experiment, under different depressurizing rates and the same fluid saturation, was conducted on the sample from 3# coal of Daning coal mine in Jincheng, Shanxi ...
Xuefeng SU, Yan LIU, Zhouqi CUI, Jianguo ZHANG, Li YU, Kai WANG   +5 more
doaj   +1 more source

Construction and application of workover priority evaluation model for surface coalbed methane low production wells based on Entropy-TOPSIS

Frontiers in Energy Research
Affected by geology and mining, a certain number of low-yield wells will appear after a period of production in coalbed methane wells, and technical repairs are urgently needed to restore their production capacity to the maximum.
Yanhe Li, Lin Zhu, Runsheng Lv, Runsheng Lv, Xiaoming Ni   +4 more
doaj   +1 more source

Characteristics of low-rank coal reservoir and exploration potential in Junggar Basin: new frontier of low-rank CBM exploration in China

Journal of Petroleum Exploration and Production Technology, 2020
Low-rank coal reservoirs of Badaowan Formation and Xishanyao Formation are mainly developed in Junggar Basin. This paper discussed their features and coalbed methane (CBM) exploration potential based on geological survey, coal samples testing and ...
Yuanjiang Yu, Yonghua Wang
doaj   +1 more source

Key technology of 3D animation simulation of coalbed methane exploitation

Meikuang Anquan, 2021
Aiming at the problems of how to improve the accuracy of simulation animation and rendering time efficiency in the production of video animation of coalbed methane mining mode, this paper analyzes and summarizes the production process of 3D animation ...
ZHANG Wei, XU Hualong
doaj   +1 more source

Seasonal variation of microbial community and methane metabolism in coalbed water in the Erlian Basin, China

Frontiers in Microbiology, 2023
Coalbed water is a semi-open system connecting underground coalbeds with the external environment. Microorganisms in coalbed water play an important role in coal biogasification and the carbon cycle.
Li Fu, Shouchao Lai, Zhuo Zhou, Zhenhong Chen, Lei Cheng   +4 more
doaj   +1 more source

Surface permeability improvement and gas control extraction test of low permeability thin coal seam in Guizhou province——Taking the YP-7 well of Shanjiaoshu Mine as an example

Meitan kexue jishu, 2023
Multiple and thin coal seams develop in Guizhou province, and the thin coal seams below 1.5 m in the coal measures of Longtan Formation account for more than 50% of the total coal seams. As for the surface gas control technology of thin coal seam mining,
Jie CHEN, Haiyang HU, Yi LOU, Linjie SHAO, Fuqin YANG, Quanzhong LI, Zhigang DU   +6 more
doaj   +1 more source

Multiple injection techniques to stimulate complex fracture networks in coal reservoirs: A case study on gas disaster reduction of subsurface coal mine in southwest China

Deep Underground Science and Engineering, Volume 5, Issue 3, Page 787-808, September 2026.
An experimental device for physical simulation of hydraulic fracturing, comprising: a load‐bearing mechanism with multiple interconnected plates that collectively form an sample chamber; a load‐generating mechanisms, with multiple load‐generating mechanisms arranged within the experimental chamber.
Delei Shang, Farui Shi, Jun Lu, Minghui Li, Cunbao Li, Heping Xie   +5 more
wiley   +1 more source

COALBED METHANE COMPREHENSIVE CHARACTERIZATION AND MODELING – BIG GEORGE COAL, POWDER RIVER BASIN, WYOMING [PDF]

, 2019
Over the past two decades, coalbed methane (CBM) has become one of the major unconventional gas resources in the US, Canada, Australia, and other countries.
Mohamed, Tarek
core  

Optimal design of coalbed methane wells in mining area with thin to medium thick coal seam group

Meitan kexue jishu
In mining areas, utilizing coalbed methane (CBM) wells to extract stress relief coalbed methane from adjacent coal seams is an efficient strategy. To enhance CBM extraction, it is vital to reveal the dynamics of stress and fracture fields evolution and ...
Ang XU, Shuxun SANG, Xiaozhi ZHOU, Sijie HAN, Jie CHEN, Yunfei FENG, Yi LOU, Zhihua YAN, Wei GAO   +8 more
doaj   +1 more source