The Resource Characteristics of Marine Gas Hydrates and the Assessment of its Exploitation Technology

Abstract

Gas hydrate is a new energy in the 21st century with the characteristics of high energy density, huge amount of resources and cleaning. It has important significances for resources development, environmental protection and global climate changing. Due to the limitations of the occurrence mode and the technical level of marine gas hydrates, at present, the development and utilization of the resources are still tentative. This article analyzed and evaluated several key technologies to develop marine gas hydrates, that is depressurization, thermal methods, chemical injection method, CO2 replacement method, and fluorine gas+microwave method.

Mechanism of Frequency Conversion Vibration Stimulating Exploiting Technology with Marine Gas Hydrate and its Numerical Simulation

“…There are many exploit technologies, which basically can be summarized as early exploit technologies, including depressurization, thermal extraction, chemical injection exploitation [4] , and currently being explored new methods including CO 2 displacement mining [5,6] , fluorine gas and microwave mining [7] . However, based on the particularity of the accumulation of gas hydrates, these methods have more or less shortcomings [8] . They are still in the theoretical and laboratory stages, with a big gap for commercial-scale mining.…”