辽河油田沈179—沈263井区沙四段储层精细描述及有利圈闭评价

发布时间：2018-02-02 11:34

本文关键词： 沈179—沈263井区精细描述沉积相储层预测　出处：《东北石油大学》2015年硕士论文　论文类型：学位论文

【摘要】：前进构造带位于大民屯凹陷西南部,是辽河坳陷内的三级构造单元,该构造带沙四段勘探程度相对较低,但随着油气勘探不断深入,沈257、沈640、前32等井在沙四段获得工业油流,表明该区有很大的勘探潜力。本次研究选取了前进构造带上的沈179—沈263井区沙四段作为研究目标,以搞清该目标区沙四段的沉积体系、储层发育特征及含油气情况,提出勘探目标或重新试油建议目标为目的,以层序地层学理论为指导,综合利用地震、地质和测井资料,结合沉积学、地层学、构造地质学、石油地质学、测井地层学和地震地层学等多门学科的相关理论和研究方法,对沙四段地层及砂组开展地层划分与对比、精细构造解释、沉积微相识别、对有利砂体储层物性及含油气性进行综合测井评价、开展储层横向预测,精细描述不同砂体的空间展布、针对重点含油砂体开展储层物性和油气分布预测、建立沙四段油气成藏模式,最后结合已知油气分布、圈闭类型和油气运聚规律等对储层含油气有利区块和砂层组进行预测和评价。
[Abstract]:The advancing structural belt is located in the southwest of Damingtun depression and is a third-order structural unit in Liaohe depression. The exploration degree of the fourth member of Sha in this structural belt is relatively low, but with the deepening of oil and gas exploration, Shen 257, Shen 640. The industrial oil flow of Qian32 well obtained in Sha 4 shows that there is great potential for exploration in this area. In this study, the fourth member of Shahejie formation, Shen179-Shen263, which is located in the forward structural belt, is chosen as the research target. In order to find out the sedimentary system, reservoir development characteristics and oil and gas content of the fourth member of the target area, the purpose of this paper is to put forward the exploration target or the suggested target of retesting oil, and to make comprehensive use of earthquakes under the guidance of sequence stratigraphy theory. Geological and logging data, combined with sedimentary, stratigraphic, tectonic geology, petroleum geology, logging stratigraphy and seismic stratigraphy and other related theories and research methods. Stratigraphic division and correlation, fine structural interpretation, sedimentary microfacies identification, comprehensive logging evaluation of reservoir physical properties and oil-bearing gas properties of favorable sand bodies, and lateral reservoir prediction are carried out for the formation and sand formation of the fourth member of Shahejie formation. The spatial distribution of different sand bodies is described in detail, reservoir physical properties and hydrocarbon distribution prediction are carried out for key oil-bearing sand bodies, and oil and gas accumulation model of the fourth member of Shahejie formation is established. Finally, combined with known oil and gas distribution. Trap types and hydrocarbon migration and accumulation patterns are used to predict and evaluate favorable oil-bearing blocks and sand formations.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P618.13

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