Results 41 to 50 of about 973,075 (210)

Beyond the Boom: Ensuring Adequate Payment for Mineral Wealth Extraction [PDF]

, 2011
Examines Ohio's severance tax rate and receipts on gas and oil extraction compared with other states, oil and gas production's costs to the state, and potential impact of a higher tax.
Wendy Patton
core  

Study on Optimization of Gas Drainage Methods in High-burst Mines [PDF]

E3S Web of Conferences, 2019
After the mechanization upgrade of Yongjing Coal Mine, the original extraction method cannot solve the problem of gas. According to the actual production conditions of the mine, the source and composition ratio of gas emission are analyzed.By combining ...
Yang Fengfeng, Gao Dongfang, Zhang Jufeng, Zhao Kezhen, Xu Tai, Zheng Chao, Bai Liping   +6 more
doaj   +1 more source

Effect of Al₂O₃-Ce₂O₃ Composite Film on High Temperature Oxidation Resistance of 304 Stainless Steel [PDF]

Cailiao Baohu
In order to improve the high temperature oxidation resistance of 304 stainless steel， Al2O3 thin films and Al2O3-Ce2O3 composite films were respectively prepared on the surface of 304 stainless steel by sol-gel method using aluminum ...
MA Jing, WANG Tiening, JIANG Qiuyue, FENG Zhihao, ZHANG Xin, LI Jianhui
doaj   +1 more source

Research on the Influence of the Position Change of High Drainage Roadway on the Gas Distribution Law in Goaf

Taiyuan Ligong Daxue xuebao, 2023
In order to study the application of high drainage roadway in goaf gas extraction and gas control in upper corner, and explore the influence of high drainage roadway extraction position on gas distribution law in goaf.
Ying LI, Dong ZHAO, Tao CHEN
doaj   +1 more source

Backyard Politics, National Policies: Understanding the Opportunity Costs of National Fracking Bans [PDF]

, 2013
Some local communities in the United States, particularly in the Northeast, are scrambling to oppose natural gas production enabled by hydraulic fracturing (or fracing, fracking, or hydrofracking) in shale formations.
Spence, David B
core   +1 more source

Dynamic of H₂NG in Distribution Systems

Energies
The reduction in GHG emissions has become one of the most important objectives in Europe. One of these clean technologies in the quest for large-scale decarbonisation is the blending of hydrogen and natural gas (H2NG).
Cristian Nicolae Eparu, Doru Bogdan Stoica, Adrian Neacsa, Renata Radulescu, Dragos Chiritescu, Alina Petronela Prundurel, Bogdan Ionete   +6 more
doaj   +1 more source

Study on the influence of the tectonic evolution of Shuangyashan Basin on gas occurrence and extraction in mines

Frontiers in Earth Science, 2023
The formation and later evolution of coal-bearing basins in eastern Heilongjiang are controlled by multi-phase tectonic movements, and the Shuangyashan Basin is tectonically located at the southern end of the Sanjiang Basin in the northeast.
Tianwei Lan, Zhijia Zhang, QUY BAO LE, Yonghao Liu, Shunxiang Wang   +4 more
doaj   +1 more source

Highlighting the effects of co‐eluting interferences on compound specific stable isotope analysis of polycyclic aromatic hydrocarbons using comprehensive two‐dimensional gas chromatography [PDF]

, 2014
Accuracy is the most important issue when carrying out compound specific stable isotope analysis of polycyclic aromatic hydrocarbons extracted from complex samples.
Blessing, Buczyńska, Elsner, Gauchotte-Lindsay, Graham, Liu, Mansuy, Mazeas, McGregor, McGregor, McRae, Meier-Augenstein, Pashin, Philp, Philp, Saber, Steinbach   +16 more
core   +1 more source

Gas extraction of a western sub-bituminous coal. Final report. [Supercritical gas extraction]

, 1978
The British National Coal Board has developed a technique for the extraction of UK bituminous coals with supercritical fluids, whereby an extract is obtained which can be hydrocracked to a distillate oil rich in benzene derivatives, together with a reactive char suitable for gasification or combustion. No hydrogen is needed for the extraction, the need
D. F. Williams, T. G. Martin
openaire   +2 more sources

Hydrogen–Rock Interactions in Carbonate and Siliceous Reservoirs: A Petrophysical Perspective

Applied Sciences
Underground hydrogen storage (UHS) in carbonate and siliceous formations presents a promising solution for managing intermittent renewable energy. However, experimental data on hydrogen–rock interactions under representative subsurface conditions remain ...
Rami Doukeh, Iuliana Veronica Ghețiu, Timur Vasile Chiș, Doru Bogdan Stoica, Gheorghe Brănoiu, Ibrahim Naim Ramadan, Ștefan Alexandru Gavrilă, Marius Gabriel Petrescu, Rami Harkouss   +8 more
doaj   +1 more source