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本文在精细地层划分和对比的基础上对小层的顶面构造进行了刻画,并总结其圈闭特征。根据各种沉积相标志认为研究区属于三角洲沉积环境,依据沉积微相和砂体展布图总结了其分布规律。结合分析化验资料和测井资料研究了储层特征,总结油藏特征和油气富集规律。最后基于以上的研究,对靖边油田M区长4+5储层进行分类评价,筛选出有利储集区,为下步的勘探开发提供有力依据。
Based on the fine stratigraphic division and contrast, this paper describes the top structure of the small layer and summarizes its trapping characteristics. According to various sedimentary facies markers, the study area belongs to the delta depositional environment, and the distribution rules are summarized according to the sedimentary microfacies and the sandbody distribution map. Combined with the analysis of laboratory data and well logging data, reservoir characteristics are studied, and the reservoir characteristics and hydrocarbon accumulation laws are summarized. Finally, based on the above research, the 4 + 5 reservoirs in M zone of Jingbian Oilfield are classified and evaluated, and favorable reservoirs are screened, which provides a strong basis for exploration and development in the next step.