实验研究了CH4水合物形成和分解过程中的电导性变化，并用温度和压力的同步变化来证明电导性作为这一过程监测指标的可靠性，结果表明，电阻随石英砂中CH4水合物的生成而增大，而当水合物生成速度很小时，电阻值变化很小；水合物分解时电阻急速减小；在未被水饱和的石英砂中，生成水合物多的截面电阻较小，而水合物少的截面因空隙中为CH4气体，电阻值成倍增大。认为电导性可望成为水合物形成的定量监测手段之一。

Changes of electrical conductivity in the process of NGH's formation and decomposition are studied experimentally, with temperature and pressure as the evincive detecting methods at the same time. Experiments' results show that electrical resistance increases and drops sharply, respectively with NGH's formation and decomposition. It is also showed that the electrical resistance in unsaturated quartz sands changes less in some sites with NGH, and increases several times in other sites with less NGH and more gas CH-4, which indicates that conductivity maybe an effective means to detect NGH quantitatively.