Results 1 to 10 of about 17,985 (119)

Assessment of CO2 geological storage capacity based on adsorption isothermal experiments at various temperatures: A case study of No. 3 coal in the Qinshui Basin

Petroleum, 2023
Carbon dioxide (CO2) capture, utilization, and storage (CCUS) is an important pathway for China to achieve its “2060 carbon neutrality” strategy. Geological sequestration of CO2 in deep coals is one of the methods of CCUS. Here, the No.
Sijie Han, Shuxun Sang, Jinchao Zhang, Wenxin Xiang, Ang Xu   +4 more
doaj   +3 more sources

In-situ rock tests for fault gouge zone：A case in Fengman hydropower station, China [PDF]

E3S Web of Conferences, 2021
The existence of faults in the dam site area threatens the stability and safety of large-scale hydropower projects in China. The fault argillaceous zone is the worst kind of fault fracture zone, and the determination of its deformation and strength ...
Xu Xinchuan, Yu Zhaoyue, Xue Fangfang, Long Xiaogang, Mao Xinyu, Ke Changyan, Wang Yuefei, Meng Huanyu   +7 more
doaj   +1 more source

Analysis of the exploitation potential of well DA1 [PDF]

E3S Web of Conferences, 2023
DA1 well exploited two sets of reservoirs, volcanic rock of Ying1 member and conglomerate of Ying4 member. In the initial stage of exploitation, the well had a high productivity.
Wang Lei
doaj   +1 more source

Operation Strategy of Continuous Gravity Measurement as Complementary to Seismic Survey on Geological CO2 Storage

Journal of MMIJ, 2021
Toward the implementation of geological CO2 storage, cost reduction of CO2 monitoring during and after injection into targeted reservoirs is the key issue.
Masao SORAI, Hiroki GOTO, Mitsuhiko SUGIHARA, Yuji NISHI, Shinsuke NAKAO   +4 more
doaj   +1 more source

Distributed Fiber Optic Strain Sensing for Geomechanical Monitoring: Insights from Field Measurements of Ground Surface Deformation

Geosciences, 2021
In recent years, distributed fiber optic strain sensing (DFOSS) technology has demonstrated a solution for continuous deformation monitoring from subsurface to surface along the wellbore. In this study, we installed a single-mode optical fiber cable in a
Rasha Amer, Ziqiu Xue, Tsutomu Hashimoto, Takeya Nagata   +3 more
doaj   +1 more source

Case study on amplitude and phase response comparison between DAS and 3C geophone VSP surveys at a test site in Japan

Frontiers in Earth Science, 2022
Distributed acoustic sensing (DAS) is an effective tool for seismic surveys and is widely used as the preferred sensor for acquiring dense Vertical Seismic Profile (VSP).
Takahiro Nakajima, Takahiro Nakajima, Takayuki Miyoshi, Takayuki Miyoshi, Tsutomu Hashimoto, Tsutomu Hashimoto, Ziqiu Xue, Ziqiu Xue   +7 more
doaj   +1 more source

Implications of Simulation of CO2 Dispersion on Marine Potential Environmental Impact Assessment and Monitoring at CO2 Storage Sites

Journal of Water and Environment Technology, 2023
When carbon dioxide (CO2) is stored in sub-seabed geological formations, the environmental impact assessment assuming CO2 leakage and monitoring CO2 concentration in the sea are mandatory in Japan.
Keisuke Uchimoto, Yuji Watanabe, Kazuhiro Misumi, Takaki Tsubono, Daisuke Tsumune, Jiro Suekuni, Ziqiu Xue   +6 more
doaj   +1 more source

Stratigraphy of the Upper Jurassic to lowermost Cretaceous in the Rødryggen-1 and Brorson Halvø-1 boreholes, Wollaston Forland, North-East Greenland

GEUS Bulletin, 2023
Two shallow cores drilled in northern Wollaston Forland, North-East Greenland, provide a combined section covering the upper Kimmeridgian (Upper Jurassic) – Barremian (Lower Cretaceous) and comprising the Bernbjerg, Lindemans Bugt, Palnatokes Bjerg and ...
Peter Alsen, Stefan Piasecki, Henrik Nøhr-Hansen, Sebastian Pauly, Emma Sheldon, Jussi Hovikoski   +5 more
doaj   +1 more source

In situ hydromechanical responses during well drilling recorded by fiber-optic distributed strain sensing [PDF]

Solid Earth, 2020
Drilling fluid infiltration during well drilling may induce pore pressure and strain perturbations in neighbored reservoir formations. In this study, we report that such small strain changes (∼20 µε) have been in situ monitored using fiber-optic ...
Y. Zhang, Y. Zhang, X. Lei, T. Hashimoto, T. Hashimoto, Z. Xue, Z. Xue   +6 more
doaj   +1 more source

Mudstone diagenesis and sandstone provenance in an Upper Jurassic – Lower Cretaceous evolving half-graben system, Wollaston Forland, North-East Greenland

GEUS Bulletin, 2023
The influence of rifting on the composition of Kimmeridgian to Barremian mudstones from northern Wollaston Forland, North-East Greenland is investigated by petrographic and mineralogical analyses of the Brorson Halvø-1 and Rødryggen-1 cores, and ...
Mette Olivarius, Afsoon M. Kazerouni, Rikke Weibel, Thomas F. Kokfelt, Jussi Hovikoski   +4 more
doaj   +1 more source