Results 71 to 80 of about 16,647 (260)

Are Environmentally Sensitive Firms More Likely to Release Corporate Environmental Disclosures? Evidence From Environmental Risk Management

Business Strategy and the Environment, Volume 34, Issue 3, Page 3338-3359, March 2025.
ABSTRACT This study examines the environmental risk management practices of US firms operating in environmentally sensitive industries. Using two proxy variables for ex ante environmental policy risk—firm‐level toxic chemical emissions and climate‐related keywords in annual financial statements—we demonstrate that firms facing high ex ante ...
Chune Young Chung, Incheol Kim, Rong Yang   +2 more
wiley   +1 more source

Gas drainage and utilization in coal mines in China: History, technological advances, and prospects

Meitian dizhi yu kantan
Objective and Methods To promote the research and application of gas drainage and utilization technologies for coal mines, this study systematically summarizes the history of China’s coal mines transitioning from gas pumping to gas drainage, the accurate
Guofu LI, Chao LI, Bichuan ZHANG, Yun XU, Zheng WANG, Xianjun ZHOU   +5 more
doaj   +1 more source

Long term forecasting of natural gas production [PDF]

, 2011
Natural gas is an important energy source for power generation, a chemical feedstock and residential usage. It is important to analyse the future production of conventional and unconventional natural gas.
Evans, GM, Mohr, SH
core   +1 more source

Opportunities and challenges for gas coproduction from coal measure gas reservoirs with coal‐shale‐tight sandstone layers: A review

Deep Underground Science and Engineering, Volume 4, Issue 1, Page 83-104, March 2025.
(1) The key engineering problem of three‐gas coproduction is identified. (2) The pore characteristics of three‐gas reservoirs and the simulation models for three‐gas coproduction are reviewed. (3) Potential future research directions for three‐gas coproduction are suggested.
Wei Liang, Jianguo Wang, Chunfai Leung, Sianghuat Goh, Shuxun Sang   +4 more
wiley   +1 more source

Application of five seismic attributes in natural fracture prediction for deep coalbed methane production along the eastern margin of the Ordos Basin

Meitian dizhi yu kantan
BackgroundNatural fractures serve as both the primary storage space for free gas of deep coalbed methane (CBM) and pathways for hydrocarbon migration. Furthermore, these fractures can enhance the porosity and permeability of strata under the deep, high ...
Jiangnan TONG, Feng WANG, Feng ZHANG, Wei HOU, Zhongbai LI, Liang JI, Yanan JIANG, Wei SUN   +7 more
doaj   +1 more source

Biogenic methane in shale gas and coal bed methane : a review of current knowledge and gaps [PDF]

, 2016
Biogenic CH4 generation has been observed in many shallow, low temperature shale gas basins and coal seams. The depletion of conventional resources and the increasing demand of natural gas for human consumption have spurred the development of so-called ...
Boothman, Christopher, Colosimo, Fabrizio, Kalin, Robert, Lloyd, Jonathan R., Lord, Richard, Smith, Anthony D., Taylor, Kevin G., Thomas, Russell   +7 more
core   +1 more source

Evolution law of pulsating seepage and thermal deformation by injecting high‐temperature steam into coal for thermal coalbed methane recovery

Deep Underground Science and Engineering, Volume 4, Issue 1, Page 119-131, March 2025.
A new phenomenon of pulsation of steam permeability is discovered. The permeability of high‐temperature steam in coal shows a periodic pulsation pattern with an increase in the injection time. A two‐phase flow theory of gas–liquid is adopted to elucidate the mechanism of pulsating seepage of steam.
Zhiqiang Li, Junliang Li, Jinsheng Chen, Ali Karrech, Ningchao Zhang, Ju Chang, Kaiqi Jin, Yangyang Yu, Hongbin Wang, Aijie Wang   +9 more
wiley   +1 more source

Fault tree analysis and prevention strategies for gas explosion in underground coal mines of Pakistan [PDF]

, 2019
Purpose. Gas explosion in the underground coal mines of Pakistan is the main source of coal miners’ mortalities. The purpose of this article is to analyze the main causes of gas explosion in the underground coal mines of Pakistan. Methods.
Ali, M, Brohi, M.A., Jiskani, I.M., Qureshi, A.R., Sajid, M.J., Shahani, N.M., Ullah, B, Zheng, X   +7 more
core   +1 more source

A discussion on CBM development strategies in China: A case study of PetroChina Coalbed Methane Co., Ltd.

Natural Gas Industry B, 2019
In recent years, the growth rate of coalbed methane (CBM) industry in China has slowed down. In order to promote its development, it is in urgent need to do the researches focusing on enhancing domestic CBM industry.
Shengming Wen, Ke Zhou, Qian Lu
doaj  

Investigation into Enhancing Methane Recovery and Sequestration Mechanism in Deep Coal Seams by CO₂ Injection

Energies
Injecting CO2 into coal seams to enhance coal bed methane (ECBM) recovery has been identified as a viable method for increasing methane extraction. This process also has significant potential for sequestering large volumes of CO2, thereby reducing the ...
Xiongwei Sun, Hongya Wang, Bin Gong, Heng Zhao, Haoqiang Wu, Nan Wu, Wei Sun, Shizhao Zhang, Ke Jiang   +8 more
doaj   +1 more source