Results 101 to 110 of about 6,533 (232)

History and development direction of iterative upgrading of deep coalbed methane reservoir reconstruction technology：Taking the Daji Block in the eastern margin of the Ordos Basin as an example

Meitan kexue jishu
In 2019, PetroChina’s Coalbed Methane (CBM) Company achieved a groundbreaking breakthrough in the profitable development of deep coalbed methane reservoirs.
Fengyin XU, Huaibin ZHEN, Shuguang LI, Feng WANG, Lei ZHANG, Yubin WANG, Weichu YU, Weiping ZHU, Borui XU, Yun YANG, Haifeng ZHAO, Kunsen BAI   +11 more
doaj   +1 more source

Pressure monitoring and observed effects of mining at the Oak Grove, AL, coalbed degasification pattern [PDF]

"The U.S. Bureau of Mines and the United States steel corporation evaluated the progress of methane drainage at the Oak Grove, Alabama, degasification pattern. Coalbed pressures were monitored between December 1981 and November 1985. Formation pressures,

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Research on coalbed methane extraction technology based on in-situ microwave heating

Meitan kexue jishu
Microwave heating, as a fast and controllable heating method, can quickly increase the temperature and permeability of coal seams, and thus enhance the recovery rate of coalbed methane.
Feng WANG, Chuangye WANG, Meng LIU, Xiaogai TAN, Ersi GAO, Tengze GE, Danlu LIU, Xiaohu XU   +7 more
doaj   +1 more source

Fundamentals of coalbed methane reservoir engineering [PDF]

This straightforward introduction to coalbed methane gives insight and detail to industry professionals involved with this unique energy resource. Author John Seidle reviews global and U.S.
Seidle, John
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Development mechanism and practical significance of deep coalbed methane (coal rock gas) infiltration and displacement

Meitan xuebao
A pilot test on the horizontal well JS6-7P01 in the eastern margin of Ordos Basin achieved a significant breakthrough in the first large-scale hydraulic fracturing of deep coalbed methane (CBM, or coal-measure gas), promoting nationwide exploration and ...
Lihong ZHOU, Xia YAN, Hongtao LIU, Xianyue XIONG, Feng WANG, Shuguang LI, Jiyuan ZHANG, Chuanqing LIU, Xiong HU, Pu YUAN, Qianli MA, Xueguang ZHU   +11 more
doaj   +1 more source

Optimization Design Method and Application of Nitrogen Horizontal Well Drilling Technology in Coalbed Methane Reservoirs

Energy Science & Engineering
Due to characteristics such as low permeability, low pressure, low gas saturation, low water content, and high structural stress, Yuwang coalbed methane (CBM) is prone to issues such as well leakage, coal sensitivity to water, and coal fines blockage ...
Hu Jiachen, Tan Zhanglong, Yang Fan, Hao Zhaobing, Yang Qi, Feng Lei, Wang Peng   +6 more
doaj   +1 more source

Study on CRIP process of underground coal gasification coupled with high-power microwave heating

Meitan kexue jishu
The Controlled Retraction Injection Point (CRIP) process of underground coal gasification can mine in situ medium-deep coal resources efficiently and transform rich coal resources in China into strategic and scarce gas resources.
Tengze GE, Chuangye WANG, Meng LIU, Danlu LIU, Ersi GAO, Song WU, Shuxia YUAN, Yuguang FAN   +7 more
doaj   +1 more source

Prediction of estimate ultimate recoverable of coalbed methane horizontal wells in Zhengzhuang block of Southern Qinshui Basin and technical countermeasures for enhancing recovery rate

Meitan kexue jishu
The single-casing segmented-fracturing horizontal well has currently become the main development well type in the Zhengzhuang block. However, it is currently characterized by large differences in single-well production, rapid local production decline ...
Cong ZHANG, Kexin LI, Lilong WANG, Chunchun LIU, Ruiqiang YANG, Guangjie SANG, Wuchang ZHANG, Jun LI, Shan HE, Zelong WANG   +9 more
doaj   +1 more source

The Optimization of Well Spacing in a Coalbed Methane Reservoir [PDF]

, 2010
Numerical reservoir simulation has been used to describe mechanism of methane gas desorption process, diffusion process, and fluid flow in a coalbed methane reservoir.
Sinurat, Pahala Dominicus
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Degasification Study from an Air Shaft in the Beckley Coalbed [PDF]

"The Bureau of Mines conducted research to degasify a virgin block of coal in the Beckley coalbed using long horizontal holes drilled in an array from the bottom of a ventilation air shaft. Eight horizontal holes and an in situ pressure hole were drilled

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