Results 41 to 50 of about 2,636,818 (211)

Control Mechanism of Pore Structure of Different Macroscopic Lithotypes on Gas Desorption Differences: A Case Study of High‐Rank Coal From the Western Ordos Basin

Energy Science &Engineering, Volume 14, Issue 9, Page 4508-4521, September 2026.
论文陈述 Paper Statement 本研究揭示了不同宏观煤岩类型的差异化控气机制:半亮煤是主要“储气核心,” 光亮煤为关键“渗流通道,” 暗淡煤则是“初期高产贡献者”。这为深层煤层气甜点优选与定制开发提供了关键理论依据。 This study reveals the differentiated gas‐controlling mechanisms of different macroscopic coal lithotypes: semibright coal acts as the primary “gas storage core,” bright coal serves as the critical “seepage channel,” and dull coal functions
Heng Li, Conghui Liu, Chen Li, Peipei Zhu, Sijie Feng, Rui Shi, Jian Shen   +6 more
wiley   +1 more source

Inspirations of typical commercially developed coalbed methane cases in China

Meitan kexue jishu
The coalbed methane resources in China are characterized by wide geographical distribution, large time span, significant quality differences and complex coal-forming conditions, thus establishing a coalbed methane development system suitable for ...
Yong LI, Xianyue XIONG, Lifu XU, Fengyin XU, Weiqi ZHANG, Jinfeng XIE, Yun LI   +6 more
doaj   +1 more source

Deformation Patterns and Rupture Mechanisms of the Longitudinal Valley Fault in Eastern Taiwan: Insights From Three‐Dimensional Discrete Element Modeling

Earth and Space Science, Volume 13, Issue 9, September 2026.
Abstract Active faults exhibit complex geometric features, with rupture processes controlled by the coupled effects of tectonic loading, fault geometry, and internal displacement heterogeneity. To elucidate the interrelationship between long‐term deformation, stress redistribution, and rupture evolution, we constructed a three‐dimensional numerical ...
X. F. Guo, Y. Aoki, J. H. Li
wiley   +1 more source

Gas-bearing evaluation of deep coal rock in the Yan’an gas field of the Ordos Basin

Frontiers in Earth Science
The Yan’an gas field in the Ordos Basin is a typical deep coalbed methane field with tremendous resource potential. Evaluation methods for gas content in deep coal seams are urgently required to be established.
Yongping Wan, Zhenchuan Wang, Dengping Hu, Ye Wang, Mengxia Huo, Xiaoyan Mu, Shuangbiao Han   +6 more
doaj   +1 more source

Permeability, Pore Throat Size, Meteoric Influx, and Biomass Control the Depth‐Distribution of Microbial Biosignatures in Sedimentary Basin Fluids

AGU Advances, Volume 7, Issue 6, September 2026.
Abstract The few studies of modern or ancient subsurface microbial communities beyond ∼100 m depth limit our view into the vast and complex deep terrestrial biosphere. In sedimentary systems, growing isotopic and molecular data sets of fluids, co‐produced with hydrocarbons, provide an unprecedented opportunity to evaluate the depth‐distribution of ...
Jennifer McIntosh, Henrik Drake, Ji‐Hyun Kim, Anna Martini, Magdalena Osburn, Meera Shah, Bradley Stevenson, Grant Ferguson   +7 more
wiley   +1 more source

Anisotropic rock physics modeling and its application for deep coalbed methane reservoirs

Meitan xuebao
Rock physics modelling, as an important method to quantitatively characterize the properties of oil and gas reservoirs, is seldom applied to coalbed methane reservoirs, and most of the established rock physics models are targeted at shallow and medium ...
Fei GONG, Suping PENG, Jiwei CHENG, Guangui ZOU, Zhaoji ZHANG, Guowei WANG, Yi LIU   +6 more
doaj   +1 more source

Spatial Variations in Methane Content and Their Main Controlling Factors of the Deep‐Buried Coalbed in the Nalinhe–Hengshan Area, Ordos Basin

Energy Science &Engineering, Volume 14, Issue 7, Page 3422-3433, July 2026.
Ash yield is the primary geological factor controlling the spatial variations in the total gas content of the deep‐buried coalbed methane in the Nalinhe‐Hengshan area, Ordos Basin. However, porosity dominates the differential enrichment of the free gas content of the deep‐buried coalbed methane in the Nalinhe‐Hengshan area, Ordos Basin.
Shi Yunhe, Wang Kangle, Wang Huaichang, Wang Yufei, Zhang Hui, Cao Jingjing, Yin Liangliang, Hu Xinyou, Liang Chao, Liu Mina   +9 more
wiley   +1 more source

Study on Deformation Law of Crossing Layer Drilling Superimposed Floor Roadway

Energy Science &Engineering, Volume 14, Issue 6, Page 2752-2771, June 2026.
Based on deformation law of crossing layer drilling superimposed floor roadway, low dip angle drilling is particularly susceptible to complications such as borehole blockage and collapse. ABSTRACT Floor extraction roadway crossing layer drilling is a pivotal strategy for gas control in areas prone to coal and gas outbursts.
Xiao Liu, Bo Li, Jiawei Xie, Xiaoming Ni, Shaoren Wei, Chengtao Yang, Yubo Zhang, Haixiao Lin, Wei Zhao, Tao Wang   +9 more
wiley   +1 more source

Review and Outlook of Pore Structure Characteristics and Flow Mechanisms in Deep Coalbed Methane Reservoirs: Advances and Perspectives

The pore structure characteristics of deep coalbed methane reservoirs are complex, and the microscale and nanoscale effects are obvious in the development of coalbed methane reservoirs.
Li, Ning, Wang, Xinyi, Zhang, Zirui, Yang, Xu, Shen, Weijun, Chen, Hongchuan   +5 more
core   +2 more sources

Economic evaluation and investment decision-making process of deep coalbed methane exploration and development projects

Meitan kexue jishu
Deep coalbed methane is a high-quality natural gas resource that has seen rapid exploration and development progress in recent years and holds an extremely promising future.
Youjin DAI, Fengyin XU, Feng WANG, Pengfei MA, Yun YANG, Jian YUN, Jie XU, Xiaoyi SUN, Shan CHENG, Yuxin LI   +9 more
doaj   +1 more source