海平面升降对海相临滨储层宏观非均质性控制机理——以塔里木盆地哈得逊东河砂岩储层为例

发布时间：2018-02-09 02:28

本文关键词： 哈得逊油田海相储层东河砂岩储层宏观非均质性成因海平面变化塔里木盆地　出处：《地质与勘探》2017年03期 　论文类型：期刊论文

【摘要】：本文研究海平面变化对海相单一亚相储层宏观非均质性的影响。以经典层序地层学理论为指导,应用岩心测试、测井数据,对哈得油田东河砂岩段临滨亚相储层宏观非均质性进行了分析,提出了海平面升降对临滨亚相储层宏观非均质性控制机理,确定了海平面相对变化控制的储层宏观非均质性分布模式。结果表明,准层序、准层序组及体系域内不同级次的海平面变化,对沉积物形成的水动力条件及沉积后所处表生环境产生较大影响,各项储层宏观非均质参数表现出明显的规律性,使准层序内单一临滨亚相储层宏观非均质性表现为向上减弱的变化趋势;准层序组内由于准层序堆砌特征差异,使退积式准层序组内临滨亚相储层宏观非均质性呈向上变强的特征,而进积式准层序组内表现为由强到弱的趋势;高位体系域内单一临滨亚相储层宏观非均质性总体表现为向上逐渐减弱。
[Abstract]:In this paper, the influence of sea level change on macroscopic heterogeneity of marine single subfacies reservoir is studied. Guided by classical sequence stratigraphy theory, core testing and logging data are used. The macroscopic heterogeneity of Linbin subfacies reservoir in Donghe sandstone section of Hade oilfield is analyzed, and the control mechanism of sea level rise and fall on macroscopic heterogeneity of Linbin subfacies reservoir is put forward. The macroscopic heterogeneity distribution model of reservoir controlled by relative sea level change is determined. It has great influence on the hydrodynamic conditions of sediment formation and the supergene environment after sedimentation, and the macroscopic heterogeneity parameters of reservoir show obvious regularity. The macroscopical heterogeneity of the single littoral subfacies reservoir in the quasequence shows a tendency of weakening upward, and the characteristics of the quasi sequence stack are different from each other. The macroscopical heterogeneity of adjoining subfacies reservoirs in the retrogradation quasequence group is characterized by upward change, while the tendency of strong to weak is shown in the progradational quasequence group. The macroscopic heterogeneity of single riparian subfacies reservoir in high system region is gradually weakened upward.
【作者单位】：中国石油大学(北京)地球科学学院;中国石油大学(北京)油气资源与探测国家重点实验室;中国地质大学(北京)能源学院;中国石油塔里木油田公司;
【基金】：国家科技重大专项(2011ZX05009-003) 国家自然科学基金(41302109)资助
【分类号】：P618.13

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