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Fei Gao, Yu Zhang, Chang Chen, Xiaosen Li and Zhaoyang Chen
The effectiveness of horizontal well drilling in improving the gas recovery efficiency of hydrate production makes it a promising technology for commercial exploitation. However, during horizontal well drilling in hydrate reservoirs, it is crucial to con...
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Evgeny Chuvilin, Dinara Davletshina, Boris Bukhanov, Sergey Grebenkin and Elena Pankratova
High-latitude permafrost, including hydrate-bearing frozen ground, changes its properties in response to natural climate change and to impacts from petroleum production. Of special interest is the behavior of thermal conductivity, one of the key paramete...
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Xuezhen Wu, Gaoqiang Guo, Hongyu Ye, Yuanbing Miao and Dayong Li
The horizontal well technology was successfully applied in the Chinese second natural gas hydrate (NGH) field test in the Shenhu area of the South China Sea in 2020. However, the results show that the threshold for commercial exploitation has not been br...
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Di Lu, Qin Tang, Dehuan Yang, Rongtao Yan, Yun Chen and Shuai Tao
Stability condition is of critical importance for methane hydrate exploitation, transportation, and reserves. This study measured the stability conditions of methane hydrate in fine-grained sediment with different dry densities (ρd" role="prese...
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Qingtao Bu, Tongju Xing, Chengfeng Li, Jinhuan Zhao, Changling Liu, Zihao Wang, Wengao Zhao, Jiale Kang, Qingguo Meng and Gaowei Hu
Geophysical detection techniques are important methods in marine gas hydrate exploration and monitoring, because the small-scale distribution of hydrates has a large impact on the wave velocity. The acoustic response characteristics of hydrate micro-dist...
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Yan Xie, Jingchun Feng, Liwei Sun, Junwen Wang, Weiqiang Hu, Bo Peng, Yujun Wang and Yi Wang
Methane leakage during natural gas hydrate (NGH) exploitation is one of the important challenges restricting its safe development, which necessitates further investigation. However, only a few experimental studies have been conducted to characterize the ...
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Xuyang Guo, Yan Jin, Jingyu Zi, Jiaying Lin, Bolong Zhu, Qian Wen and Qi Jing
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....
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Evgeny Chuvilin, Gennadiy Tipenko, Boris Bukhanov, Vladimir Istomin and Dimitri Pissarenko
The thermal interaction of a gas production well with ice-rich permafrost that bears relict gas hydrates is simulated in Ansys Fluent using the enthalpy formulation of the Stefan problem. The model admits phase changes of pore ice and hydrate (ice meltin...
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Gang Li, Fugui Tang, Chaofan Li, Wen Lei and Ying Liu
Gas hydrate is seen as a kind of new energy resources, yet it may also be one of the main greenhouse gases as its dissociation may release methane into the atmosphere. Furthermore, a severe hazard to offshore infrastructures may also be introduced by ext...
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Jie Shen, Abraham C. F. Chiu and Charles Wang Wai Ng
For the safe extraction of methane from hydrate reservoirs, modeling the mechanical behavior of the methane hydrate-bearing soil properly is crucial in order to enable designers to analysis hydrate-dissociation-induced geotechnical failures. Hydrate morp...
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