DOI: 10.21276/sjet

Pages: 207-211

Gas hydrate, as a new energy source, has drawn extensive attention from the government， the companies and universities, and they have set up the related research department and the new Institute to strengthen the research of the hydrate. The development of the hydrate has also become a hot spot. The basic idea of natural gas hydrate exploration is to consider how to make the gas hydrate in the sediment to be decomposed, and then exploit the natural gas to the ground. In general, it is the main idea to break down the temperature and pressure conditions of natural gas hydrate stability, that is, the phase equilibrium condition, which causes the decomposition of gas hydrate. This paper introduces four kinds of common mining methods: thermoelectro-liminesence method, pressure reductionrlease method, inhibitor method, gas substitution method