东营凹陷北部陡坡带砂砾岩扇体识别模式

东营凹陷北部陡坡带因坡度陡、距物源近、古地形起伏大且构造活动强烈,在沙三、沙四期沉积多种砂砾岩扇体。砂砾岩扇体油藏已成为胜利油田增储上产的重要勘探目标。在系统观察岩心的基础上,通过粒度、综合地质、地震及测井等资料分析,对东营凹陷北部陡坡带砂砾岩扇体进行了研究,建立了各扇体的识别模式。此研究,对研究区砂砾岩扇体油藏的勘探开发具有一定的指导意义。

Identification models of sandy conglomerate fans in the northern steep slope zone of Dongying sag

Because of the steep slope ,near provenance ,large paleo-topographic relief and strong tectonic activities in the northern steep slope zone of Dongying sag ,various types of sandy conglomerate fans were deposited in the E s3 and Es4 period .The sandy conglomerate fans have become important exploration targets for increasing reserve and improving oil re -covery in Shengli oilfield .On the basis of systematic observation of cores ,the sandy conglomerate fans are studied by data analyses including grain size ,synthetic geology ,seismic data and logging .As a result ,the identification modesl for various fans were established .The research results can be a guide for the exploration and development of sandy conglomerate fan reservoirs in Dongying sag .