太古宇潜山风化壳储层发育主控因素分析—以鲁西-济阳地区为例

doi:10.13278/j.cnki.jjuese.201505103

摘要/Abstract

摘要：

随着我国东部各大含油气盆地相继进入高勘探程度阶段,太古宇潜山作为一种重要的接替类型逐渐受到人们的重视。以明确太古宇潜山风化壳储层发育主控因素、建立风化壳储层评价标准为目的,笔者通过对鲁西地区太古宇露头的大量观测与济阳坳陷覆盖区典型太古宇潜山的解剖,采用露头区与覆盖区对比分析的思路,对太古宇潜山风化壳储层的发育特征及主控因素进行了分析。研究发现,太古宇潜山风化壳储层主要存在两种发育模式,分别为残丘型和断层滑脱型;风化壳储层发育的主控因素主要包括3个,分别为潜山岩石矿物组成、潜山断裂发育程度和风化改造程度;通过对主控因素分别进行级别定义和相互匹配,建立了济阳坳陷太古宇风化壳储层的三端元评价标准。将太古宇风化壳储层划分为三大类,其中Ⅰ类储集性能最好,Ⅱ类次之,Ⅲ类最差。

关键词: 风化壳, 储层, 太古宇, 鲁西, 济阳坳陷

Abstract:

With the development of the exploration in every major petroliferous basin in Eastern China, Archaeozoic buried hill bubbles up and draws people's attention. The main objects of this study are defining the main controlling factors of Archaeozoic weathering crust reservoir, and establishing the reservoir evaluation criteria. This study is conducted through outcrop observation in Luxi area, dissecting analysis of representative Archaeozoic buried hill in Jiyang depression, as well as a comparatively analyzing the outcrop and its overlay area. The research shows that there are two models of development of the Archaeozoic weathering crust reservoir: residual hill and fault slid type. The main controlling factors of the Archaeozoic weathering crust reservoir include mineral composition, development degree of faults, weathering, and reforming degree of buried hill. Based on the definition of grade and mutual matching of three controlling factors, the evaluation criteria of the Archaeozoic weathering crust reservoir in Jiyang depression is established. The Archaeozoic weathering crust reservoir is subdivided into three classes, classⅠis the most favorable, while class Ⅲ is the worst in respect of its reserving capability.

Key words: weathering crust, reservoir, Archaeozoic, Luxi area, Jiyang depression

中图分类号:

P544.4

张鹏飞, 刘惠民, 曹忠祥, 田美荣, 唐东, 马士坤. 太古宇潜山风化壳储层发育主控因素分析—以鲁西-济阳地区为例[J]. 吉林大学学报(地球科学版), 2015, 45(5): 1289-1298.

Zhang Pengfei, Liu Huimin, Cao Zhongxiang, Tian Meirong, Tang Dong, Ma Shikun. Analysis on Main Controlling Factors of Archaeozoic Weathering Crust Reservoir:With Jiyang and Luxi Area as an Example[J]. Journal of Jilin University(Earth Science Edition), 2015, 45(5): 1289-1298.

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