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研制了一套易于开启的天然气水合物实验装置，使合成的水合物很容易取出以便直接测定其储气量。设计加工了一套利用天然气水合物在真空下分解测量其气体体积的实验装置，提出了一种直接测定甲烷水合物储气量的方法—容积法，并测定了在不同条件下生成的甲烷水合物的储气量。与传统的重量法相比，容积法的可操作性强，受环境因素和人为因素的影响小，精密度与准确度高，能够比较准确地直接测出甲烷水合物的储气量，在天然气水合物资源量评价及天然气运输技术方面，都有广阔的应用前景。

EXPERIMENTAL TECHNIQUES OF DIRECTLY MEASURING THE GAS STORAGE CAPACITY IN METHANE HYDRATE

An experimental device of natural gas hydrate was developed,which is easy to be opened so that the synthesized hydrate can be easily taken out for the purpose of directly measuring its gas storage capacity. In addition, the other experimental device of decomposing the natural gas hydrate and measuring its gas volume at vacuum condition was also developed; a method (volumetric method) of directly measuring the gas storage capacity in methane hydrate was put forward; and the gas storage capacities of the methane hydrates formed under different conditions were measured by the authors. As compared with the conventional gravimetric technique, the volumetric method is of these advantages, as strong operability, a little influence of environmental and artificial factors, and high precision, by which the gas storage capacity in methane bydrate can be measured directly and accurately, so that it has a vast range of prospects for being applied to the evaluation of natural gas hydrate resources and to the gas transmission.