西安石油大学学报（自然科学版）2013，Vol.28Issue(1)：18-24,7.
鄂尔多斯盆地下寺湾地区长6砂岩储层成岩作用研究
Diagenesis of Chang 6 reservoir of Xiasiwan area in Ordos Basin
摘要
Abstract
In order to reveal the spatial evolution rule of diagenesis and porosity evolution,the characteristics and diagenesis stage of the Chang 6 reservoir are studied based on the data analysis of rock section,casting thin-section,scan electron microscope,X-ray diffraction and vitrinite reflection of Xiasiwan area in Ordos Basin. The results show that the Chang 6 reservoir is in the late diagenesis phase A;and main diageneses include compaction,cementation,metasomatosis and cataclasis. The intense compaction is the primary cause leading to pore loss of the reservoir in early period;the cementation of ferrocalcite in late diagenetic stage is the main factor leading to the severe heterogeneity of reservoir physical property;dissolution,grain-coating chlorite,and cataclasis have constructive effect on the reservoir physical property. The pore types of the Chang 6 reservoir mainly include primary remained intergranular pore .feldspar dissolved pore and lithic dissolved pore,secondly micropore and fracture pore. Finally,reservoir diagenetic evolutionary sequence and the history of reservoir pore evolution are analyzed.关键词
成岩作用/演化序列/孔隙演化/长6储层/下寺湾地区/鄂尔多斯盆地Key words
diagenesis/evolutionary sequence/pore evolution/Chang 6 reservoir/Xiasiwan area/Erdos Basin分类
能源科技引用本文复制引用
曹晓琴..鄂尔多斯盆地下寺湾地区长6砂岩储层成岩作用研究[J].西安石油大学学报（自然科学版）,2013,28(1):18-24,7.基金项目
国家自然科学基金资助项目(编号:41102083) （编号:41102083）
国家科技支撑计划项目(编号:2007BAB17B05)资助 （编号:2007BAB17B05）
