![]() A thermo-hydro-chemo-mechanical coupled model for natural gas hydrate-bearing sediments considering gravity effect. Zhigang Ye, Lujun Wang, Bin Zhu, Haibing Shao, Wenjie Xu, Yunmin Chen.Research Development in the Traditional Methods and Water Flow Erosion for Natural Gas Hydrate Production: A Review. Huiru Sun, Bingbing Chen, Zhenyu Zhu, Lei Zhang, Mingjun Yang, Yongchen Song.Numerical simulation of gas extraction performance from hydrate reservoirs using double-well systems. Lin Dong, Yanlong Li, Nengyou Wu, Yizhao Wan, Hualin Liao, Huajian Wang, Yajuan Zhang, Yunkai Ji, Gaowei Hu, Yuri Leonenko.Applications of the Discrete Element Method for Gas Hydrate-Bearing Sediments: Recent Advances and Perspectives. The Development of Clathrate Hydrate Science. Methane Hydrate Dissociation in Quartz Sand by Depressurization Combined with Microwave Stimulation. ![]() Yue Zhu, Xuhui Li, Pengfei Wang, Yun Li, Shengli Li, Volodymyr Bondarenko, Andrii Dreus, Xiaoyang Li, Jinlong Zhu, Baochang Liu.Benefiting from multiple theoretical enhancement mechanisms such as replenishing energy to HBS with in-situ heat generation powders, cementing and strengthening the HBS skeleton, improving the gas permeability in HBS, decreasing the WGR based on blocking water, and removing gas characteristics of hydration products, this method could be expected to achieve promising long-term performance of gas production, which will be theoretically and practically significant to study commercial gas production. Given this, a new method for enhanced gas production from HBS based on the combination of depressurization (DP) and an in-situ heat generation method is proposed. The unfavorable situation mainly comprises the insufficient sensible heat, extremely low thermal conductivity, and ultralow permeability of HBS, lower gas production rate and its intense fluctuations, higher water-to-gas ratio (WGR), geological deformation, and subsidence of HBS attributed to excessive sand production, driving the consideration of some possible solutions. On the basis of laboratory experiments and field trials, key challenges restricting safe and efficient NGH development, and the existing research gaps reflecting these challenges, are also presented from the gas production, security, and economic aspects. This paper introduces nearly all the conventional and latest NGH exploitation methods and reviews field trials’ development characteristics. Therefore, it is appropriate and significant to discuss researchers’ achievements to exploit NGH and summarize their potential benefits and challenges. However, until now, most methods are still being validated and not have not been identified to exploit NGH commercially. Researchers worldwide are committed to developing a safe, efficient, and economical method of gas recovery from HBS. Safe, efficient, and economical gas recovery from hydrate-bearing sediments (HBS) is a severe issue that determines if natural gas hydrate (NGH), as an alternative energy in the future as fossil fuels approach depletion, is applied.
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