Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Xuwen Qin"'
Publikováno v:
Geoderma, Vol 449, Iss , Pp 117023- (2024)
Fine-scale spatial distribution of soil physicochemical properties is crucial for soil quality management, agriculture planning and geotechnical engineering. Existing soil map databases are usually developed in national scale, potentially leading to
Externí odkaz:
https://doaj.org/article/b61defc391dd483082eacd00be924372
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 17, Pp 8794-8809 (2024)
Remote-sensing-based interpretation of engineering geological lithology units provides essential lithological information for engineering planning, design, and construction projects. However, dense vegetation cover can easily interfere with the litho
Externí odkaz:
https://doaj.org/article/c54b6e9d80444f2380b93ac26f1c1240
Autor:
Qian Zhang, Xuwen Qin, Hong Zhang, Yanhui Dong, Cheng Lu, Shouding Li, Luokun Xiao, Chao Ma, Hang Bian
Publikováno v:
Frontiers in Earth Science, Vol 10 (2022)
Natural gas hydrates as sustainable energy resources are inherently affected by mineral surfaces and confined spaces in reservoirs. However, the habits of hydrates in geological sediments are still an open question. In this work, we systemically stud
Externí odkaz:
https://doaj.org/article/3c0b049efc7c44ea8de74a6ca349b0c9
Publikováno v:
Geofluids, Vol 2022 (2022)
Natural gas hydrate is a kind of environmentally friendly unconventional energy with large reserves, which attract increasing attention in recent years. The microscopic pore structure and mineral composition of natural gas hydrate reservoir have a gr
Externí odkaz:
https://doaj.org/article/0c762210515c474bab54878af063592f
Autor:
Cheng Lu, Pengfei Xie, Hui Li, Xuhui Zhang, Xiaobing Lu, Bin Zhang, Ziqin Zhang, Xuwen Qin, Shuai Zhang, Hang Bian
Publikováno v:
Journal of Marine Science and Engineering, Vol 10, Iss 8, p 1059 (2022)
Natural gas hydrates are a strategic energy resource in China. The China Geological Survey has discovered segregated hydrate mass formations under the seepage mechanism in the South China Sea through exploration, and gas hydrates occur in nodular, ma
Externí odkaz:
https://doaj.org/article/27e0d52ab60d499db0e820d9a04b2813
Publikováno v:
Energy Exploration & Exploitation, Vol 39 (2021)
The hydrate reservoir in the Shenhu Area of the South China Sea is a typical clayey-silt porous media with high clay mineral content and poor cementation, in which gas hydrate formation and dissociation characteristics are unclear. In this study, the
Externí odkaz:
https://doaj.org/article/ac75ba3ee8014b0aadde944b9a01a1e2
Publikováno v:
Geofluids, Vol 2021 (2021)
Many hydrate-bearing sediments in the Shenhu area of the South China Sea are featured with unconsolidated clayed silt, small particle size, and high content of clay, which can pose a great challenge for gas production. In order to investigate the gas
Externí odkaz:
https://doaj.org/article/107e3be04c4b42cfb7a03abbf408288d
Experimental Study on the Propagation Characteristics of Hydraulic Fracture in Clayey-Silt Sediments
Autor:
Cheng Lu, Xuwen Qin, Wenjing Mao, Chao Ma, Lantao Geng, Lu Yu, Hang Bian, Fanle Meng, Rongrong Qi
Publikováno v:
Geofluids, Vol 2021 (2021)
The low permeability of clayey-silt hydrate reservoirs in the South China Sea affects the thermal and pressure conductivity of the reservoir, which is difficult to spread to the far end of the wellbore and achieve commercial gas production. In this r
Externí odkaz:
https://doaj.org/article/4df7520256a140d9a57adb980445c2f9
Publikováno v:
Geofluids, Vol 2021 (2021)
As a dynamic research method for molecular systems, molecular dynamic (MD) simulation can represent physical phenomena that cannot be realized by experimental means and discuss the microscopic reaction mechanism of things from the molecular level. In
Externí odkaz:
https://doaj.org/article/8ea51f51ed384dddbda7a14af17be042
Publikováno v:
Geofluids, Vol 2020 (2020)
The gas-water two-phase seepage process is complex during the depressurization process of natural gas hydrate in a clayey silt reservoir in the South China Sea, the transport mechanism of which has not been clarified as it is affected by the pore str
Externí odkaz:
https://doaj.org/article/965b54ca9a9540fca1fcc113e33fb305