现代地质2013，Vol.27Issue(2)：425-434,10.
神狐钻探区天然气水合物成藏地质条件分析
Analysis of Natural Gas Hydrate Accumulation Conditions of Shenhu Prospect
摘要
Abstract
Based on the theory of gas hydrate geological system, gas hydrate accumulation conditions of Shenhu prospect are studied. The results indicate that there are excellent gaseous hydrocarbon source sub-system and gas-bearing fluid migration sub-system. The gas hydrate in this area is proved to be a mixture of biogenic gas and thermogenic gas and the hydrocarbon potential of the source rock is high; faults, gas chimneys, and detachment surface constitute the dominant migration pathway for the hydrocarbon to migrate horizontally and vertically. Geothermal characteristic and gas hydrate reservoir accumulation sub-system (characteristics of lithology and lithological assemblage) are the main reason why gas hydrate is distributed heterogeneously in all spatial scales in the study area. The lower the temperature of the earth and the geothermal gradient, the coarser the sediment grain is. In addition, the fine-above-coarse-below lithological assemblage is more beneficial for the gas hydrate to accumulate.关键词
天然气水合物/成藏系统/成藏就位体系/神狐钻探区Key words
natural gas hydrate/ geological system/ reservoir accumulation sub-system/ Shenhu prospect分类
能源科技引用本文复制引用
梁永兴,曾溅辉,郭依群,匡增桂..神狐钻探区天然气水合物成藏地质条件分析[J].现代地质,2013,27(2):425-434,10.基金项目
国土资源部天然气水合物科技项目(GZH201100305-07-02). （GZH201100305-07-02）
