靖安油田上三叠统长6储集层成岩作用  

Diagenesis of Chang-6Reservoir of Upper Triassic in Jing'an Oilfield of Ordos Basin

作　　者：李斌[1] 朱永铭[1] 童孝华[1] 赵惊蛰[2] 刘莉莉[2] 

机构地区：[1]成都理工大学能源学院,四川成都610059 [2]中国石油长庆油田分公司勘探开发研究院,陕西西安710021

出　　处：《新疆石油地质》2003年第4期292-295,共4页Xinjiang Petroleum Geology

摘　　要：通过对5条剖面和11口探井的综合研究,认为靖安油田上三叠统延长组长6储集层经历了压实、胶结、溶蚀等一系列复杂的成岩作用,成岩现象十分丰富,特征明显。从储集层储集性能的成岩作用研究表明,早成岩期的压实作用、多种矿物胶结作用是使储集层物性变差、孔隙度降低的两个重要的成岩控因;而溶蚀作用,特别是浊沸石矿物的溶蚀是储集层物性变好的重要成岩控制因素之一。The c om posite study of five sections and11exploratory wells shows that Chang-6rese rvoir of Yanchang formation of Upper Trias-sic in Jing'an oilfield underwent a series of complex diageneses with compaction,cementation and dissolution with various and distinctive features.The study shows that the early diagenetic com paction and multi-mineral cementation are major effective factors that lead to its poor petrophysical property and low porosity;while dissolution,in particul ar,dissolution of laumontite is one of significant factors controlling the qua lity of reservoir.

关 键 词：储集层 成岩作用 三叠统 靖安油田 

分 类 号：TE122.221[石油与天然气工程—油气勘探] P534.51[天文地球—古生物学与地层学]