Proposal, subject connotation and prospect of marine natural gas hydrate engineering geology

doi:10.13745/j.esf.sf.2024.11.23

Abstract

Abstract:

The adjustment of energy resources and the implementation of the national “dual-carbon” strategy provide a rare space for research on marine natural gas hydrates as a potential source of energy. The safe and efficient development of marine natural gas hydrate increasingly faces prominent contradictions in managing and controlling multiple types of engineering geology risks as exploration and development research deepens. It is urgent to develop marine natural gas hydrate engineering geology based on the basic principles of modern engineering geology. Therefore, this paper describes the process of proposing the engineering geology of natural gas hydrate, and discusses the basic disciplinary framework, core research tasks and main research methods of marine natural gas hydrate engineering geology based on the research progress at home and abroad. It is recognized that marine gas hydrate engineering geology is an integral part of marine earth system science. Its core objective is to assess the geological and engineering safety bearing capacity of marine gas hydrate systems and to provide decision support for marine gas hydrate exploration and development. Marine gas hydrate engineering geology can not only provide scientific basis for answering the interaction mechanism between exploration and development activities and marine gas hydrate systems, but also effectively link marine gas hydrate energy research with geohazard and global climate change research and provide certain theoretical and technical support for the integrated sustainable development of marine gas hydrate geology, environment and engineering.

Key words: natural gas hydrate, engineering geology, disciplinary connotation, research task, technical means

CLC Number:

P618.13

WU Nengyou, LI Yanlong, JIANG Yujing, SUN Jinsheng, XIE Wenwei, HU Gaowei, WANG Ren, YU Yanjiang, WANG Jintang, CHEN Qiang, SHEN Kaixiang, SUN Zhiwen, CHEN Mingtao. Proposal, subject connotation and prospect of marine natural gas hydrate engineering geology[J]. Earth Science Frontiers, 2025, 32(2): 216-229.

Figures/Tables 4

Fig.1 Basic disciplinary connotations of marine gas hydrate engineering geology

Fig.2 Multi-field coupling model of marine gas hydrate reservoir. Modified after [35].

Fig.3 Chained evolutionary model of engineering geologic risks associated with marine gas hydrate development

Fig.4 Multi-scale experimental simulation technology system of geological response behavior of marine gas hydrate system engineering. Modified after [26,38,65,70,73⇓-75].

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