苏里格气田苏120井区盒_8段储层特征研究

Research on the characteristics of He-8 reservoir of permian in Sulige gas field Su120 bore field

综合利用剖面观察、岩心薄片、铸体薄片、扫描电镜、压汞测定等方法,对苏里格气田苏120区块盒8段沉积微相及砂体展布特征、储层岩石学特征、储集特征和储层物性特征以及成岩作用进行了深入系统的研究。结果表明:苏里格气田苏120区块盒8段储层属低孔低渗储层;储层岩性以岩屑石英砂岩、石英砂岩为主;研究区储层孔隙空间主要有岩屑溶孔和晶间孔;成岩作用对该储层物性及储集空间有着重大影响作用。通过对该区储层特征的研究,可为下一步勘探开发提供地质依据。

Sulige gas field Sul20 bore field were systematically studied on sedimentary mi- crofacies and petrology characteristics, reservoir characteristics, reservoir physical property characteristics and diagenesis by comprehensive utilization of sections observation, core ob- servation, scanning electron microscopy and mercury measurement methods etc. The result shows that the reservoir of He-8 reservoir in Sulige gas field Sul20 bore field is a low, super low porosity and low permeability reservoir. The reservoir lithology are mainly lithic quartz sandstone and quartz sandstone. The reservoir pore space are mainly lithic pore and inter- granular pore. Diagenesis has a significant impact on the role of the reservoir properties and reservoir space.Research on the reservoir characteristics of the area can provide a geological basis for the next step of exploration and development.