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高尚堡油田沙三段扇三角洲储层沉积学特征
石油与天然气地质
1997年 18卷 第No.1期
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Title
SEDIMENTOLOGICAL CHARACTERISTICS OF FAN DELTA RESERVOIRS IN Es SUBMEMBERS, GAOSHANGPU OILFIELDS
Authors
Ran Qiyou
Chang Xuejun
Liu Cuirong
摘要
高尚堡油田沙三段二、三亚段为一套粗碎屑扇三角洲沉积,沉积物主要来自NE方向,具有近物源、短距离、快速搬运、快速堆积的特点。在8类岩石相中,以正韵律砂砾岩相、正韵律厚层含砾砂岩相和块状层理砂岩相为最有利的储集岩类,6种岩石相组合形式中,发育于分流河道亚相中的类型1和类型2最有利于油气的富集。
Abstract
The deep Es submembers consist of a set of coarse detritus fan deltaic deposits which come from NE direction and are characterized by near provenance,short transportation and rapid accumulation.Among 8 lithofacies types,the positive rhythmic sand gravel facies,positive rhythmic gravel bearing sandstone facies and massive sandstone facies are favourable reservoir rocks;within 6 facies assemblages,type Ⅰ and type Ⅱ developed in distributary channel subfacies are favourable for oil and gas accumulation.
关键词：
高尚堡油田;
扇三角洲;
岩石相;
沉积物源;
有利相带;
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