准噶尔盆地腹部陆南凸起侏罗系储层成岩作用及其对储层物性的影响  

Diagenesis and effect on physical property of Jurassic reservoirs in Lunan uplift,abdomen of Junggar basin

作　　者：仲维苹[1] 

机构地区：[1]中国石化胜利油田分公司勘探开发研究院,山东东营257000

出　　处：《东北石油大学学报》2018年第1期77-85,共9页Journal of Northeast Petroleum University

基　　金：国家科技重大专项(2016ZX05002-002);中国石油化工股份有限公司科技重大攻关课题(P13020)

摘　　要：根据铸体薄片、扫描电镜、X线衍射、物性等资料,研究准噶尔盆地腹部陆南凸起侏罗系储层成岩作用;根据侏罗系不同层段岩石组分、黏土矿物种类及含量的差异,分析各层段经过成岩作用后储集空间类型及特征,结合岩心及测井解释资料,探讨成岩作用对储层物性的影响。结果表明:侏罗系储层主要经历压实、胶结及溶蚀等成岩作用,目前处于中成岩阶段A期。侏罗系八道湾组原生孔隙甚少,以次生溶孔为主;三工河组原生孔隙发育;西山窑组以溶蚀型原生孔隙为主。储层受成岩作用影响明显,粒度、压实作用、溶蚀作用是影响储层物性的重要因素。该研究结果可以预测有利储层发育区。Based on comprehensive analysis of cast thin-section,SEM,X-ray diffraction and petrophysical property data,the diagenesis of Lunan uplift reservoir of Jurassic is studied in detail in this paper.Besides,the types and difference of reservoir space according to difference of each set of Jurassic and the difference of the types and contents of clay minerals are detailedly analyzed,and combined with core and well logging data,the influence of diagenesis to reservoir property is discussed.The results showed that,the reservoir of Jurassic is now in period A of mid diagenesis,experienced by the compaction,cementation and dissolution,the reservoir Badaowan formation is lowered in primary porosity and highly in secondary porosity,the reservoir of Sangonghe formation is highly in primary porosity and the reservoir of Xishanyao formation is mainly of secondary-primary porosity.The reservoir quality is obviously influenced by diagenesis and grain size,compaction and dissolution are the most important factors that affect reservoir porosity.Through the study of diagenesis and reservoir quality,the area that favorable reservoir development area exists was forecast.

关 键 词：陆南凸起 侏罗系 储层物性 成岩作用 准噶尔盆地 

分 类 号：TE121.2[石油与天然气工程—油气勘探]