Results 61 to 70 of about 1,026 (173)

Study on the Influence of Deep Coalbed Methane Horizontal Well Deployment Orientation on Production

Energies
The development of deep coalbed methane has become an important way to obtain natural gas in China. The development of deep CBM mainly depends on horizontal well technology.
Ruyong Feng, Chen Li, Lichun Sun, Jian Wang, Jia Liu, Na Li   +5 more
doaj   +1 more source

Mechanism of fracturing geological characteristics controlling gas well productivity in medium-rank coalbed methane reservoirs

Meitan kexue jishu
Medium-rank coalbed methane is the core target for deep coalbed methane exploration and development in China. Conducting research on the influence laws and control mechanisms of fracturing geological characteristics of coal reservoirs at this metamorphic
Lichao CHEN, Daibing MA, Shibing LI, Wentao MA, Xingxing GUO, Jingdan LIU, Yanwu CHEN, Xi ZHAO   +7 more
doaj   +1 more source

Influence of deep coal pore and fracture structure on occurrence of coalbed methane: a case study of Daning-Jixian Block in eastern margin of Ordos Basin

Meitan kexue jishu
The pore-fracture structure of deep coal reservoir is of great significance to the evaluation and exploration of deep coalbed methane resource potential.
Ze DENG, Hongyan WANG, Zhenxue JIANG, Rong DING, Yongzhou LI, Tao WANG   +5 more
doaj   +1 more source

Study on dynamic stress field of fracturing in horizontal wells of deep coal seams: A case study of Daning-Jixian block in Ordos Basin [PDF]

Youqicang pingjia yu kaifa
China’s deep coalbed methane demonstration base has been preliminarily established and is gradually entering an important stage of large-scale exploration and development.
ZHAO Haifeng, WANG Chengwang, XI Yue, WANG Chaowei
doaj   +1 more source

Design of a Pressure-Preservation Coring Tool for Deep and Ultra-Deep Coalbed Methane Samples

Shiyou jixie, 2020
Conventional coalbed methane coring tools and pressure/temperature-controlled oil-gas coring tools are difficult to obtain valuable coal cores from deep coal reservoirs.
Wang Xigui, Zou Deyong, Yang Liwen, Liu Xiaoao   +3 more
doaj  

Optimization Design of Deep-Coalbed Methane Deliquification in the Linxing Block, China

Processes
The production of deep-coalbed methane (CBM) wells undergoes four stages sequentially: drainage depressurization, unstable gas production, stable gas production, and gas production decline. Upon entering the stable production stage, the recovery rate of deep CBM wells is constrained by bottom hole flowing pressure (BHFP).
Bing Zhang, Wenbo Jiang, Haifeng Zhang, Yongsheng An   +3 more
openaire   +1 more source

Regulation mechanism of slickwater on desorption interface of deep coalbed methane

Duankuai youqitian
Aiming at the problems of difficult desorption of deep coalbed methane (methane) and low productivity after fracturing in the development of deep coalbed methane in Daniudi Gasfield, experiments such as methane desorption performance testing, core damage
LUO Yi,FANG Yanjun,QIAO Qianyu
doaj   +1 more source

Factors influencing the production of coalbed methane from deep reservoirs

Meitian dizhi yu kantan
ObjectiveThe production characteristics of coalbed methane (CBM) from deep reservoirs differ significantly from those of CBM from shallow reservoirs. Key challenges in deep CBM production include maintaining reservoir permeability or minimizing permeability loss, enhancing CBM (CH4) desorption efficiency, and accurately predicting the laws of CH4 ...
Zhenzhi WANG, Xuehai FU, Jienan PAN, Yi JIN, Haichao WANG   +4 more
openaire   +1 more source

An Analysis of Hydrogeological Conditions of Deep Coalbed Methane

OALib, 2023
openaire   +1 more source

Geological characteristics and resource potential of deep coalbed methane in Guizhou

Meitan xuebao
Accelerating the exploration and development of deep ( > 1 000 m)coalbed methane (CBM) resources is an important way for the large-scale development of CBM and an important development direction in recent years. Guizhou Province is rich in CBM resources, with a large proportion of deep CBM resources.
Zhaobiao YANG, Wei GAO, Yong QIN, Mengjiang ZHANG, Cunlei LI, Zhihua YAN, Yuhui LIANG, Benju LU, Yilin CHEN, Caifang WU, Jie CHEN, Geng LI, Dexiu WEN   +12 more
openaire   +1 more source