马朗凹陷芦草沟组致密储集层复杂岩性识别  

Identification and Application of Complex Lithology of Lucaogou Tight Reservoir in Malang Sag,Santanghu Basin

作　　者：郭小波[1] 黄志龙[1] 涂小仙 赵毅[1,3] 陈晨[1] 张成林[1] 孙美丽 

机构地区：[1]中国石油大学油气资源与探测国家重点实验室,北京102249 [2]中国石油吐哈油田分公司,新疆哈密839009 [3]中国石化江苏油田分公司,江苏扬州225009

出　　处：《新疆石油地质》2013年第6期649-652,共4页Xinjiang Petroleum Geology

基　　金：国家自然科学基金(41272156)

摘　　要：优选了对岩性敏感的自然伽马、中子、密度和声波时差等测井曲线,建立了马朗凹陷芦草沟组复杂岩性识别交会图版,校正单井岩性剖面,并分析了致密储集层的特征。应用自然伽马、声波时差与重构曲线(视石灰岩中子孔隙度与密度孔隙度之差曲线)建立的综合岩性识别图版,识别出泥岩、凝灰质泥岩、灰质泥岩、泥质白云岩等12种主要岩性。研究结果表明,马朗凹陷芦草沟组源内致密储油层主要受岩性组合控制,其中,泥岩夹(薄层)灰质泥岩、白云质泥岩或者以灰质泥岩、白云质泥岩为主的岩性,为该区最有利岩性组合,含油性最好。This paper selects the lithology-sensitive natural gamma, neutron, density and acoustic logging curves to establish lithology iden- tification cross-plot for Lucaogou tight reservoir in Malang sag of Santanghu basin, and identifies 12 kinds of main lithology, including mud- stone, tuffaceous shale, calcareous mudstone, argillaceous dolomite, etc. The study shows that the tight reservoir of Lucaogou formation is mainly controlled by the lithologic combination, of which the mudstone intercalated with （thin） calcareous mudstone and dolomitic mud- stone or the lithology dominated by calcareous mudstone and dolomitic mudstone is the most favorable lithologic comnination, and the oili- ness is the best.

关 键 词：三塘湖盆地 马朗凹陷 非常规油气 致密储油层 测井 岩性识别 

分 类 号：TE112.221[石油与天然气工程—油气勘探]