摘要
以储层微观特征和孔隙结构分析为手段,对乌里雅思太凹陷南洼腾一段下低渗储层特征及其控制因素进行分析。结果表明:乌里雅思太凹陷南洼腾一段下储层岩石类型以岩屑长石砂岩、长石岩屑砂岩为主;扇三角洲成因的水下分流河道储层物性较好,多数低渗储层属于分流河口坝和湖底扇扇中水道成因,机械压实作用是低渗储层形成的主要因素,高岭石的胶结作用其次。
Through comprehensive analysis of petroleum geological conditions of Bayindulan Sag, Erlian Basin, it was determined that there were two sets of source rocks developed and three sets of source-reservoir-cap rock combinations in Tenggeer Formation. There are three sets of source rocks developed and source-reservoir-cap rock combinations in Aershan, k1t1 and k1t2 Formation of south trough; The trap style is multiform, including structural trap, lithologic trap, stratigraphic trap and combination trap. The reservoir type and accumulation model are summarized and the difference of petroleum geological conditions between south and north troughs are analyzed.
出处
《石油天然气学报》
CAS
CSCD
北大核心
2009年第2期225-226,236,共3页
Journal of Oil and Gas Technology
关键词
储层特征
低渗储层
腾一段下
乌里雅思太凹陷
Bayindulan Sag
petroleum geological conditions
reservoir type
accumulation model
