Current situation and prospect of new technologies for exploitation of marine combustible ice resources
In this paper,the physical and chemical properties,reserves distribution,exploration and development history and the current status of exploitation technology of natural gas hydrate are summarized in detail.On this basis,the basic principles,technical conditions and process steps of five new NGH exploitation methods are analyzed,the advantages and disadvantages of several new technologies are compared,and the challenges faced by NGH exploitation are analyzed from multiple perspectives.Finally,it is pointed out that strengthening international cooperation,deepening multi-disciplinary crossing and developing new mining technology are the main direction of NGH large-scale development in the future.