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天然气水合物的开采可以通过破坏水合物赋存的平衡状态（如温度条件、压力条件等），使甲烷气从固态水合物分离出来，也可以通过热激法、减压法、抑制刺激法、置换法和混合开采法等多种方式完成。降压法和热激法技术的结合使用是目前最受推崇的方案，其基本原理是用热激发法分解天然气水合物，而用减压法提取游离气体，已投产的俄罗斯Messoyakha气田和加拿大Mackensie气田均以该法为主要开采技术，其技术在国内具有良好的应用前景。

EXPLOITATION TECHNIQUES AND APPLICATION OF GAS HYDRATE 1)

Exploitation of gas hydrate can be done by cracking the balance status (e.g. temperature, pressure conditions etc.) or by the thermal stimulation method, the pressure reduction method, the inhibitor injection method, the replacement method, and slurry mining method etc. to make methane gas dissociated from solid hydrate. The program to combine the pressure reduction method with the thermal stimulation method is most popular now. Its working principle is to dissociate gas hydrate by the thermal stimulation method and recover free gas by the pressure reduction method. The program is the main exploitation technique for Messoyakha gas field in Russia and Mackensie gas field in Canada. It has good applicable prospect in China.