鄂尔多斯盆地柴窑区长3油层组油气分布规律  

Hydrocarbon Distribution Rule of Chang3 Formation in Chaiyao Block, Ordos Basin

作　　者：张晓斌[1] 张凤博[1] 杨云祥[1] 

机构地区：[1]延长油田股份有限公司下寺湾采油厂,陕西延安716102

出　　处：《辽宁化工》2016年第2期201-203,220,共4页Liaoning Chemical Industry

基　　金：国家自然科学基金项目;项目号:41102083

摘　　要：为阐明鄂尔多斯盆地柴窑地区长3油层组的油气分布特征,在构造特征分析、沉积相分析、储层特征分析以及盖层特征分析的基础上,讨论了研究区油气的分布规律,分析认为:柴窑地区长3储层砂体分布是油气分布的主要控制因素,其孔隙度大于12%,渗透率大于3×10-3μm2的地区为油气主要分布区。其次,鼻状隆起和盖层的遮挡特征也是控制油气分布的重要因素。鼻状隆起较发育的地区,长4+5油层组区域盖层的薄弱区和长2、长3油层组之间巨厚泥岩盖层发育的叠合区,为油气主要的分布区。To clarify oil and gas distribution characteristics of Chang3 formation in Ordos basin Chaiyao area, based on the analysis of tectonic characteristics, sedimentary facies, characteristics of reservoir and cap rock, the distribution rule of oil and gas in the study area was discussed. The results show that Chang3 reservoir sand distribution is the main control factor of oil and gas, the area whose porosity is more than 12% and permeability is more than 3×10^-3μm^2 is the main distribution area of oil and gas. Secondly, nose-like uplifts and cover ability of cap rock are also the important factors of oil and gas distribution. Nose-like uplift developed areas, weak zone of Chang 4＋5 reservoir group cap rock, and huge thick mudstone between Chang2 and 3 formations are the main distribution area of oil and gas.

关 键 词：油气分布规律 长3油层组 柴窑区 沉积微相 鄂尔多斯盆地 

分 类 号：TE112[石油与天然气工程—油气勘探]