天然气水合物储层的地球物理特性及测井评价

Gas hydrate reservoir geophysical characteristics and logging evaluation

地球物理测井作为传统的资源评价方法是天然气水合物勘探中的有效评价手段。本文从水合物的物理性质及其储层测井特征出发,总结了水合物储层的地球物理特征,根据水合物测井响应,对含水合物地层的孔隙度和饱和度进行研究,综合评判了电阻率法、时间平均方程法、Wood加权平均法,印度尼西亚方程等对评价水合物地层的适用性,取得了一定的结果。

Geophysical logging as a traditional resource evaluation method, is an effective means of evaluation in gas hydrate exploration. Based on the physical properties of the hydrate reservoir and its logging features of the starting,the geophysical characteristics of the hydrate reservoir are summed up. In accordance with log response hydrate, Hydrate containing strata porosity and saturation are studied here. The evaluation of the applicability of hydrate formation are judged by the methods such as resistivity method,time average equation method,Wood weighted average method and Indonesia Equation methods .Some results have already been achieved.