东营凹陷广北区沙三段沉积微相与剩余油分布关系

广北区是八面河油田的一部分 ,是一复杂断块油田 ,古近系沉积时期 ,构造活动较为强烈 ,同生断层控制沉积地形 ,沙三段广泛发育三角洲沉积体系 ,成为该区的主力油层之一。油田进入开采后期 ,需进一步挖掘油田剩余潜力 ,由于剩余油分布与各储层沉积特征密切相关 ,因此对各类砂体的沉积微相与剩余油分布关系进行系统分析就具有很重要的现实意义。

The Relationship between Sedimentary Microfacies and Remantant Oil of the Third Member of Shahejie Formation in Guangbei Area of Dongying Sag

Guangbei area,one part of Bamianhe oilfield,is a complicated fault block oilfeild,in Paleogene,the tectonism was some strong and some synsedimentary faults dominated the depositional topographer of the area,the third member of Shahejie Formation widely developed delta sedimentation system,which become one of the primary oil formations. Now the oilfield is entering into exploitation later stage and needing exploit remnant oil-gas,and the distributing of remnant oil is very close to sedimentary characters of each reservoir,therefore,there is significant practical importance to analyze the relation between sedimentary microfacies and remnant oil distributing .