摘要
四川盆地侏罗系沙溪庙组是四川盆地上三叠统—白垩系碎屑岩的重要组成部分,也是重要的陆相碎屑岩天然气储层。沙溪庙组的天然气主要来自下伏须家河组及下侏罗统的陆相生烃岩系,其河道沉积是最有利于储层发育的相带。四川盆地西部中侏罗统沙溪庙组砂岩,是四川盆地碎屑岩的重要组成部分,在本次"四川盆地上三叠统—白垩系碎屑岩沉积相与储层成岩作用研究"重大专项中占有重要地位。作者在野外工作中重点测绘了蒲江石桥沙溪庙组剖面,并结合前人研究成果及蒲江地区大参井、白马6、白马8井测井地质图,详细划分了剖面的沉积相,并与相邻三条剖面进行横向对比。详细分析了该区沉积相变化和古地理展布特征。
The clastic rock of Shaximiao Formation is a central component part of Upper Triassic-Cretaceous in Sichuan Basin,and also valuable gas reservoir of detrital material of terrigenous origin.The gas in the Shaximiao Formation is mainly sourced from the underlying continental source rocks of the Xujiahe Formation and the Lower J urassic,and the fluvial facies is the most favorable facies belt for reservoir development.The sandstone of Shaximiao Formation in the west of Sichuan Basin is a significant member in the ＂The research of sedimentary facies and diagenesis of diagenesis of clastic rock of Upper Triassic-Cretaceous in Sichuan Basin＂.In this article,the author survey and drawing the Shaximiao Formation in Pujiang of Shiqiao in field operation,and division the sedimentary facies of it through couple the research of predecessors and the log cadastre of Dacan,Baima 6 and Baima 8.By means of Compare it with another three contiguity contiguity,the author analyse the alternate of sedimentary facies and palaeogeographical feature in full.
出处
《内蒙古石油化工》
CAS
2010年第8期189-191,共3页
Inner Mongolia Petrochemical Industry
关键词
沙溪庙组
沉积相
岩相古地理
蒲江
Pujiang Section
Saximiao Formation
Sedimentary facies
Lithofacies
