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惠民凹陷商河构造位于惠民凹陷中央隆起带,整体表现为东西走向的单斜构造带,自西向东发育着两个北东走向的微幅正向构造带,西部构造幅度大,东部构造幅度宽缓,被四条近东西走向南倾的三级断层所切割,由南到北划分为5个断阶带。目前发现的油藏主要沿着构造脊富集,在构造脊上具有含油连片的特点,在5个断阶带上具有带状分布的特点。通过对商河构造的构造特征、断裂活动性及其构造演化特征分析,结合油藏分布现状进行油藏解剖,认为商河地区构造对油气成藏的控制作用为:①构造背景控制着油气富集区;②断面特征控制着油气的输导方式;③主要输导断层控制油气富集带。
The Shuihe structure of the Huimin Depression is located in the central uplift belt of the Huimin Depression, which shows the east-west monoclinic structural belt as a whole. There are two northerly trending micro-amplitude positive tectonic belts from west to east with large tectonic amplitudes in the west and eastern structures The width is gentle and is cut by three tertiary faults which are nearly south-west and south-dipping. It is divided into 5 fault zones from south to north. The present reservoirs are mainly characterized by tectonic ridges, oil-bearing concretions on the tectonic ridges, and belt-like distribution on five fault zones. Based on the analysis of tectonic features, fault activity and tectonic evolution characteristics of the Shanghe tectonics and the reservoir distribution, the authors believe that the controlling role of the structure of the Shanghe area on hydrocarbon accumulation is as follows: (1) The tectonic setting controls the oil and gas richness Zone; ② cross-section characteristics control the oil and gas transport; ③ the main fault-controlled oil and gas enrichment zone.