摘要:利用岩心资料以及扫描电镜、黏土矿物X衍射、高压压汞、有机包裹体荧光分析等分析化验资料,对研究区储层物性进行综合分析。结果表明:研究区长7储层以长石砂岩为主、长8储层以岩屑质长石砂岩为主、长9储层以长石质岩屑砂岩为主;胶结物以铁方解石为主。按成因类型可将长7~长10孔隙分为原生孔隙和次生孔隙两大类,主要为小孔中细喉道储层。根据孔隙度与渗透率的相关关系,说明该区储层主要为孔隙性储层,裂缝基本不发育。结合沉积微相、孔隙度、渗透率等参数对该区储层物性进行综合分析,得知好储层主要分布于水下分流河道,这为今后进一步勘探指明了方向。
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