Results 41 to 50 of about 2,665,111 (174)

Stimulation practice of geology-engineering integration fracturing for deep CBM in Yanchuannan Field

Youqicang pingjia yu kaifa, 2021
As a new field of unconventional natural gas exploration and development, deep coalbed methane（CBM） has great resource potential, but its benefit development faces great challenges.
YAO Hongsheng, CHEN Zhenlong, GUO Tao, LI Xin, XIAO Cui, XIE Fei   +5 more
doaj  

Multi-scale structural inheritance of fracture systems pattern in coal-bearing measures of the Lorraine-Saar coal Basin

Геофизический журнал, 2022
The Lorraine-Saar Basin (LSB) is one of the major Paleozoic coalfields of Western Europe that has been shapedover two centuries as a heartland of underground coal mining and associated industrial activities in the transborderarea of France and Germany ...
V. Pryvalov , J. Pironon, P. de Donato , R. Michels, A. Izart, C. Morlot, O. Panova   +6 more
doaj   +1 more source

A study on Mechanical Seepage Characteristics of Coal‐Rock Mass Under the Combined Action of Multiple Factors

Safety Science and Technology, Volume 1, Issue 1, March 2026.
Schematic diagram of a triaxial fluid–solid coupling device based on the mapping function. ABSTRACT In deep coal mining, the influence of temperature–pressure coupling on the mechanical properties of coal is a crucial factor inducing dynamic disasters.
Musen Gao, Heng Ma, Xiaoqi Wang, Ke Gao
wiley   +1 more source

Integrated Analysis of Pore and Fracture Networks in Deep Coal Seams: Implications for Enhanced Reservoir Stimulation

Energies
This study systematically investigates the pore–fracture architecture of deep coal seams in the JiaTan (JT) block of the Ordos Basin using an integrated suite of advanced techniques, including nuclear magnetic resonance (NMR), high-pressure mercury ...
Kaiqi Leng, Baoshan Guan, Chen Jiang, Weidong Liu   +3 more
doaj   +1 more source

Research on the Mechanism of Sand Bridge Stuck Drill in Deep Coal and Rock Gas Horizontal Wells

Energy Science &Engineering, Volume 14, Issue 2, Page 854-865, February 2026.
Accounting for wellbore collapse debris and the bulldozer effect, this study develops models for permeable and impermeable sand bridge sticking in deep CBM horizontal wells, deriving resistance and volume formulations. Validated in Changqing, results show impermeable bridges dominate; controls (fluid optimization, staged drilling, circulation, speed ...
Cheng Hui, Yong Ouyang, Zhifeng Duan, Xiaoyue Xu, Yuxiang Teng, Mingyang Liu, Hui Zhang, Long Chen   +7 more
wiley   +1 more source

Mitigating Surface Tension Effects in Multi‐Coalbed Methane Reservoirs: Case Study of Liupanshui Field

International Journal of Energy Research, Volume 2026, Issue 1, 2026.
Water locking effect caused by surface tension severely restricts coalbed methane (CBM) productivity in multilayer reservoirs. The Songhe demonstration area features main target coal seams with overpressure, high gas content, and high gas saturation, presenting favorable CBM development conditions.
Zhu Liu, Yu Xiong, Shiliang Zhu, Zong Ren, Xiao Wang, Xixi Hao, Yun Feng, Mahmoud Ahmed   +7 more
wiley   +1 more source

Distribution characteristics and exploration and development prospects of coalbed methane resources in Sinopec

Meitan kexue jishu
Exploration breakthroughs of deep coalbed methane (CBM) in the Ordos Basin have driven rapid industry development since 2019. Based on the characteristics of complex coalbed methane (CBM) resource types and strong spatial heterogeneity of reservoir ...
Dehua ZHOU, Gang CHEN, Shihu ZHAO, Baojian SHEN, Zengqin LIU, Jincheng YE, Xinjun CHEN, Jiaqi ZHANG   +7 more
doaj   +1 more source

Experimental Study on Multiscale Evolution Mechanism of Coalbed Reservoir Properties in “Three‐Low” CBM Reservoirs Modified by Chlorine Dioxide

Geofluids, Volume 2026, Issue 1, 2026.
Aiming at the “three‐low” challenges (low permeability, low gas saturation, and low critical desorption‐to‐storage ratio [CDSR]) of Chinese coalbed methane (CBM) reservoir materials, this study adopted chlorine dioxide (ClO2) chemical modification on long‐flame, coking, and anthracite coal materials.
Chaowen Hu, Ruifeng Huang, Huifeng Wang, Bo Pan, Xiaojie Yang, Yichao Li, Fulong Sun, Umberta Tinivella   +7 more
wiley   +1 more source

The Effect of Permeability towards Coalbed Methane (CBM) Production [PDF]

, 2012
Coalbed methane (CBM) reservoirs have generated large and unerring interest in the last 20 years or so due to its potential as one of the most efficient unconventional source of energy.
Ahmad Hisyam Rosaimi Bin Hassim, Ahmad Hisyam Rosaimi
core  

Challenges and countermeasures for exploration and development of deep CBM of South Yanchuan

Youqicang pingjia yu kaifa, 2020
Deep CBM resources with great potential is an important area of CBM exploration and development in China. After more than 10 years of research and exploration, Sinopec East China Oil & Gas Company has made positive progress in basic geological theory
WU Yuyuan, CHEN Zhenlong
doaj