Results 71 to 80 of about 2,726 (246)

Laws of gas and water flow and mechanism of reservoir drying in tight sandstone gas reservoirs [PDF]

, 2021
The reservoir permeability of tight sandstone gas reservoirs is low, which makes it difficult to carry out displacement flow experiments on real cores underground conditions, so the microscopic flow mechanism can be hardly studied.
Baochao Shan, Xiangyu Liu, Yu Xiong, Yulong Zhao, Jingjing Guo, Liehui Zhang, Hongming Tang   +6 more
core   +1 more source

Mechanistic insights across curing regimes for enzymatic and biopolymer‐optimized reinforcement in rock masses

Deep Underground Science and Engineering, EarlyView.
This study examines the effects of curing temperature on the mechanical behavior of underground rock masses treated with enzyme‐induced calcite precipitation (EICP) and an innovative biopolymer‐modified EICP (BP‐EICP). Abstract Biocementation is an innovative and sustainable technique for reinforcing weak and weathered rock masses in natural and ...
Mary C. Ngoma, Oladoyin Kolawole
wiley   +1 more source

Microscopic pore structure characteristics and implications of deep coal measure reservoirs in eastern Ordos Basin [PDF]

Youqicang pingjia yu kaifa
The deep coalbed methane resources in the eastern Ordos Basin are abundant, and comprehensive development of coal measure gas can enhance resource utilization and improve single well gas production.
MA LITAO, WU PENG, YANG JIANGHAO, HU WEIQIANG, HUANG YING, LIU CHENG, NIU YANWEI, WANG ZHIZHUANG, REN DAZHONG   +8 more
doaj   +2 more sources

Theory and practice of unconventional gas exploration in carrier beds: Insight from the breakthrough of new type of shale gas and tight gas in Sichuan Basin, SW China

Petroleum Exploration and Development, 2023
Unconventional gas in the Sichuan Basin mainly includes shale gas and tight gas. The development of shale gas is mainly concentrated in the Ordovician Wufeng Formation–Silurian Longmaxi Formation, but has not made any significant breakthrough in the ...
Tonglou GUO, Liang XIONG, Sujuan YE, Xiaoxia DONG, Limin WEI, Yingtao YANG   +5 more
doaj   +1 more source

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

Deep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu, Tao Li, Ruiqi Yuan, Yue Li, Bingni Wu, Bo Liu, Zhengding Deng, Galindo Rubén, Fausto Molina‐Gómez   +8 more
wiley   +1 more source

A pore network-based multiscale coupled model for rapid permeability prediction of tight sandstone gas [PDF]

Tight sandstone has multiscale pore structures. Gas transport in tight sandstones involves several length scales and the complicated physics. Gas transport characteristics in tight sandstone can be represented by apparent gas permeability. Microstructure-
Xu, Zhipeng, Cao, Gaohui, Xu, Leige, Lin, Mian, Jiang, Wenbin, Ji, Lili   +5 more
core   +3 more sources

Insights into the Co-Exploration Potential of Gas in the Shale and Tight Sandstone of the Lower Silurian Formation in the Gongtan Syncline Area in Southeastern Sichuan Basin, SW China

Energies
This work aims to explore the Lower Silurian shale gas and tight sandstone gas accumulation conditions in the Gongtan Syncline, southeastern Sichuan Basin.
Shengxiu Wang, Ye Zhang, Wei Wang, Yang Yang, Qiaoli Wang, Chuan Yu, Difei Zhao, Chunlin Zeng, Yao Xu   +8 more
doaj   +1 more source

Origin and accumulation models of ultra-low permeability-tight sandstone (gravel) gas in Bohai Bay Basin, China

Journal of Natural Gas Geoscience, 2022
Ultra-low permeability–tight sandstone (gravel) gas reservoir is an important exploration target for natural gas both domestically and internationally.
Jianying Guo, Xuening Qi, Lianhua Hou, Aisheng Hao, Xu Zeng, Shiguo Lin, Xiugang Pu, Zengye Xie, Yifeng Wang, Xiaobo Wang, Dawei Chen   +10 more
doaj   +1 more source

Study on the mechanism of CO2 injection to improve tight sandstone gas recovery

Energy Reports, 2022
Supercritical CO2 can improve gas recovery and achieve carbon sequestration in tight gas reservoir. It is a hot topic but not applied extensively. The main restricts include the unclear mechanism of gas-to-gas displacement and the reduction of the natural gas asset value due to CO2 breakthrough.
Haiying Liao, Weiyi Pan, Yingfu He, Xin Fang, Yao Zhang   +4 more
openaire   +2 more sources

Performance assessment of a potential underground thermal storage facility: Case study of the closed mine Prosper‐Haniel in the Ruhr coal mining area in Germany

Deep Underground Science and Engineering, EarlyView.
This study demonstrates the feasibility of an underground closed‐loop thermal storage facility at a post‐mining site, intended for seasonal heat energy storage. Its principal design shows water flow directions in winter and summer (1, 2), heat pumps (3), an upper water reservoir (4), and connecting pipes (5).
Dmytro Rudakov, Oleksandr Inkin
wiley   +1 more source