梨树断陷沙河子组地层水特征与成藏关系

摘要

Formation water is the groundwater that always coexists with oil and gas, it is affected by the sedimentary environment, the lfuid lfow and other factors, and has an important relationship with the generation, migration, assemblage and accumulation of oil and gas. This paper focuses on the total degree of mineralization, metamorphic coefficient, desulfuration coefficient and carbonate equilibrium coefficient of strata water in Shahezi Formation , Lishu fault depression South-east slope belt . The analysis of these chemical characteristics shows that low parameters are consistent with the known reservoir distribution. Moreover, strata water has favorable sealing conditions, which is advantageous to accumulate and preserve the oil and gas. On the whole, four areas including SW9,HS4 have the potential for exploration.%地层水是与油气共存的地下水，它受沉积环境、流体流动等多种因素影响，与油气的生成、运移、聚集和成藏有着重要联系。对梨树断陷东南斜坡带沙河子组地层水总矿化度、变质系数、脱硫系数、碳酸盐平衡系数等化学特性参数的分析表明，参数低值区与已知油气藏分布吻合，东南斜坡带沙河子组地层水封闭条件较好，有利于油气聚集和保存，十屋9、河山4等区域具有勘探潜力。