东营凹陷王庄地区古近纪沙河街组三段扇三角洲砂砾岩体沉积特征分析

Glutenite Sedimentary Characteristics Analysis Taleogene Period of Es3+4 Fan Delta in Wangzhuang Area of Dongying Depression

摘要:

本文利用现代沉积学、测井学和地震勘探等手段,对王庄地区砂砾岩扇体特征进行了研究,认为该区在古近纪以形成古近系的较高水动力能砂砾岩扇体沉积体为主,其中扇三角洲砂砾岩体是本区最主要的砂砾岩扇体类型,并具有较好的储集性能,是本区最主要的油气储集体;王庄地区砂砾岩扇体沉积,强烈地受控于边界构造条件;砂砾岩扇体沉积及其形态均受沉积相的控制,并具有复杂多变的特征,从而导致了本区油气藏的聚集和分布具有复杂多变的特点。

Abstract:

Using present sedimentology, logging and seismic exploration, glutenite fan body characteristics in Wangzhuang area are studied in this paper. It is regarded that high hydrodynamic energy gluenite fan body sedimentary of Taleogene system are mainly formed in Taleogene period, and fan delta glutenite is major fan body type in this area. They have good reserve function, and are major oil and gas reserve body in this area. Glutenite fan body sedimentary in Wangzhuang area is controlled by bundary tectonic condition strongly; fan body sedimentary and its occurrence are both controlled by sedimentary facies, and has complicated characteristics, which caused complicated characteristics of oil and gas concentration and distribution.