近岸水下扇致密砂岩储层渗透率测井评价

以南阳凹陷北马庄-黑龙庙地区核二2亚段近岸水下扇非常规致密砂岩储层为例,通过资料调研、岩心观察、岩石薄片鉴定,并结合钻井、测井、试油等生产测试结果,针对中-低等成分成熟度、孔隙结构差、孔喉结构复杂、孔渗关系异常等具有非常规储层特征的非均质储集体,提出了地质约束条件下的渗透率测井评价方法,并通过精细数字处理后取得了与实测岩心物性符合度较高的应用效果,为后续储层评价提供了依据。

Evaluation on Permeability Logging of Compacted-sandstone Reservoir of Inshore Underwater Fan

Through investigation of literature survey,core observation,thin section identification and testing results including drilling,logging,formation testing,logging end method was proposed on permeability evaluation by taking the example of unconventional compacted-sandstone reservoir of inshore underwater fan in the second member of Eh2 in Beimazhuang-Heilongmiao Area of Nanyang Depression,which was aimed at heterogeneous reservoirs of unconventional features characterized by middle-low composition maturity,poor porosity structure,complex pore constriction structure,abnormal pore-permeability relationship.The results are highly accordant with actual measurement of core physical property obtained by fine numerical process,it provides a basis for subsequent reservoir evaluation.