抄録
Natural gas hydrate, as a strategic energy resource with abundant reserves, wide distribution, and clean, low-carbon attributes, is increasingly becoming a crucial focus for global energy transition and energy security. Predominantly occurring in deep-sea sediments and permafrost regions, its exploration is constrained by complex geological conditions and extreme environments, leading to significant technical challenges and barriers. In recent years, with the continuous integration of geoscience, exploration engineering, and information technology, the exploration technology system for natural gas hydrate has been gradually refined and rapidly advanced, encompassing key processes such as geological surveys, geophysical detection, geochemical analysis, drilling and sampling, as well as intelligent data processing. This paper systematically reviews the core technologies and recent progress in natural gas hydrate exploration, with emphasis on breakthroughs in methods such as bottom-simulating reflectors identification, controlled-source electromagnetic imaging, geochemical anomaly monitoring, and pressure-retained coring, and further elaborates on the frontier applications of big data and artificial intelligence in sweet spot identification, seismic data processing, and resource evaluation. By comparing typical exploration practices in countries such as China, Japan, and the United States, this study summarizes international mainstream technological pathways and future development trends, while highlighting major challenges that remain in heterogeneous data integration, hydrate content prediction, and drilling disturbance control. The research aims to provide systematic references for the efficient exploration and scientific evaluation of natural gas hydrate resources and to promote the establishment of an intelligent and integrated exploration framework.
https://ror.org/059wz5438 
