Results 21 to 30 of about 16,235 (210)

Tri-Axial Shear Tests on Hydrate-Bearing Sediments during Hydrate Dissociation with Depressurization

Energies, 2018
A series of tri-axial shear tests were carried out to determine the stress and strain characteristics, as well as the volume deformation of methane hydrate-bearing sediments during gas hydrate dissociation.
Dongliang Li, Qi Wu, Zhe Wang, Jingsheng Lu, Deqing Liang, Xiaosen Li   +5 more
doaj   +1 more source

Numerical Investigation into the Development Performance of Gas Hydrate by Depressurization Based on Heat Transfer and Entropy Generation Analyses

Entropy, 2020
The purpose of this study is to analyze the dynamic properties of gas hydrate development from a large hydrate simulator through numerical simulation.
Bo Li, Wen-Na Wei, Qing-Cui Wan, Kang Peng, Ling-Ling Chen   +4 more
doaj   +1 more source

A preliminary study on the Mesozoic massive gold metallogenic mechanism of the deep-large fault coupling with critical water in the Jiaodong area, China

Dizhi lixue xuebao, 2021
This study aims to study the reason why a huge accumulation of gold deposits occurred in the Jiaodong area. We summarized and analyzed the geological background and metallogenic characteristics of the Jiaodong gold deposits.
HU Baoqun, GAO Haidong, WANG Yun, ZHANG Baolin, LYU Guxian   +4 more
doaj   +1 more source

Numerical Investigation of Depressurization through Horizontal Wells in Methane-Hydrate-Bearing Sediments Considering Sand Production

Journal of Marine Science and Engineering, 2022
Sand production has been identified as a key reason limiting sustained and commercial gas production in methane-hydrate-bearing sediments. Production tests in Canada and Japan were terminated partially because of excessive sand production in pilot wells.
Xuyang Guo, Yan Jin, Jingyu Zi, Jiaying Lin, Bolong Zhu, Qian Wen, Qi Jing   +6 more
doaj   +1 more source

Modeling of the Frictional Behavior at the Contact Surface between the Different Materials Constituting Methane Hydrate Production Well

Journal of MMIJ, 2018
Depressurization process is regarded as the most effective process for gas recovery method from the viewpoints of gas productivity and economic efficiency among in-situ dissociation processes of Methane Hydrate (MH) existing in marine sediments. However,
Masayo KAKUMOTO, Yasuhide SAKAMOTO, Kuniyuki MIYAZAKI, Kazuo AOKI, Akira TAKIGUCHI, Aya YASUI, Jiro MORI   +6 more
doaj   +1 more source

Analysis of Measuring Characteristics of the Differential Pressure Water-Level Measurement System Under Depressurization Condition

Frontiers in Energy Research, 2020
In this paper, RELAP5 code was selected to study the measuring characteristics of the double reference tube level gauge, which is commonly used in high temperature and high pressure vessels on marine nuclear power platforms, under steady and transient ...
Xuwei Zhou, Jie Cheng, Luchao She, Guangming Fan   +3 more
doaj   +1 more source

Numerical Simulation of Gas Production and Reservoir Stability during CO₂ Exchange in Natural Gas Hydrate Reservoir

Energies, 2022
The prediction of gas productivity and reservoir stability of natural gas hydrate (NGH) reservoirs plays a vital role in the exploitation of NGH. In this study, we developed a THMC (thermal-hydrodynamic-mechanical-chemical) numerical model for the ...
Qingping Li, Shuxia Li, Shuyue Ding, Zhenyuan Yin, Lu Liu, Shuaijun Li   +5 more
doaj   +1 more source

Reactivation of Microbial Strains and Synthetic Communities After a Spaceflight to the International Space Station: Corroborating the Feasibility of Essential Conversions in the MELiSSA Loop [PDF]

, 2019
To sustain human deep space exploration or extra-terrestrial settlements where no resupply from the Earth or other planets is possible, technologies for in situ food production, water, air, and waste recovery need to be developed.
Ambrozova, Iva, Boon, Nico, Christiaens, Marlies, Clauwaert, Peter, Coninx, Ilse, Heylen, Wietse, Ilgrande, Chiara, Leys, Natalie, Lindeboom, Ralph, Mastroleo, Felice, Pommerening-Roser, Andreas, Prat, Delphine, Spieck, Eva, Van Hoey, Olivier, Vlaeminck, Siegfried   +14 more
core   +2 more sources

Numerical Simulation of Gas Production Behavior Using Stepwise Depressurization with a Vertical Well in the Shenhu Sea Area Hydrate Reservoir of the South China Sea

Journal of Marine Science and Engineering
Stepwise depressurization is an important depressurization strategy in the development of natural gas hydrates. This work numerically analyzes the effects of different depressurization gradients and constant pressure durations on gas and water production
Tinghui Wan, Zhanzhao Li, Hongfeng Lu, Mingming Wen, Zongheng Chen, Lieyu Tian, Qi Li, Jia Qu, Jingli Wang   +8 more
doaj   +1 more source

Numerical Investigation of Hydrate Dissociation Performance in the South China Sea with Different Horizontal Well Configurations

Energies, 2014
Based on the available measurement data and literature on the hydrate deposits of the South China Sea, a numerical simulation with a new dual horizontal well system has been carried out.
Jing-Chun Feng, Xiao-Sen Li, Gang Li, Bo Li, Zhao-Yang Chen, Yi Wang   +5 more
doaj   +1 more source