子长油田热寺湾地区延长组长2油藏油气富集规律研究

发布时间：2018-11-06 14:41

【摘要】：子长油田位于鄂尔多斯盆地,鄂尔多斯盆地上三叠统延长组地层发育齐全,该套地层多层系含油。多年来,特别是近年来,一直属于最为主要的油气勘探目的层,在理论研究及其实践中都取得了令人振奋的成果。这些成果包括鄂尔多斯盆地中生代地层的形成及演化、该地区沉积相及其沉积特征、鄂尔多斯盆地储层特征研究、生储盖的研究及延长组油气富集规律等多方面的内容,这些详细的研究为鄂尔多斯盆地油气勘探开发起到重要指导意义,在对鄂尔多斯盆地地层特征的研究中,特别是对该地区中生界主力油层上三叠统延长组储层的研究,为子长油田油气开采起到特别重要的意义。但是,子长油田在目前还没有在研究区内进行细致的研究,因此,本论文结合平时工作经验及其油田相关科研项目,通过对油藏地层划分、油层构造特征、沉积相和沉积体系、储层特征几方面的研究,对子长油田热寺湾地区延长组长2油藏油气富集规律探究。本文首先通过对研究区域地层与构造特征、沉积相特征、储层特征、油藏特征进行研究,为子长油田热寺湾地区延长组长2油层组沉积相与储层地质特征研究奠定基础;然后,对研究区长2油层进行地层划分,沉积相砂体展布研究,同时对该地区储层特征和油藏流体性质及油层分布进行研究,最后,根据研究分析该区块长2油藏油气富集规律,同时进行有利区的预测,为研究区下一步勘探开发提供参考。
[Abstract]:Zichang Oilfield is located in the Ordos Basin. The Yanchang formation of the Upper Triassic in the Ordos Basin is well developed. For many years, especially in recent years, it has been one of the most important target zones for oil and gas exploration, and has achieved exciting results in theoretical research and practice. These achievements include the formation and evolution of Mesozoic strata in Ordos Basin, sedimentary facies and their sedimentary characteristics in this area, reservoir characteristics of Ordos Basin, the study of source, reservoir and cap, and the oil and gas enrichment law of Yanchang formation, etc. These detailed studies play an important guiding role in the exploration and development of oil and gas in the Ordos Basin. In the study of the stratigraphic characteristics of the Ordos Basin, especially the study of the reservoirs in the Upper Triassic Yanchang formation of the main Mesozoic oil layers in this area, It is of great significance for oil and gas production in Zichang Oilfield. However, Zichang Oilfield has not been studied in detail in the study area at present. Therefore, this paper combines the usual working experience and related scientific research projects of the oilfield, through the classification of reservoir stratigraphy, reservoir structural characteristics, sedimentary facies and sedimentary system, The oil and gas enrichment law of Yanchang 2 reservoir in Zichang Oilfield is studied in several aspects of reservoir characteristics. Firstly, this paper studies the regional stratigraphic and structural characteristics, sedimentary facies, reservoir characteristics and reservoir characteristics, which lays a foundation for the study of sedimentary facies and reservoir geological characteristics of Yanchang No. 2 formation in Zichang Oilfield. Then, the stratigraphic division and distribution of sedimentary facies sand bodies in Chang2 oil layer in the study area are studied. At the same time, the reservoir characteristics, reservoir fluid properties and reservoir distribution in this area are studied. According to the research and analysis of the oil and gas accumulation law of Chang2 reservoir in this block, the prediction of favorable area is carried out at the same time, which provides a reference for the further exploration and development of the study area.
【学位授予单位】：西安石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P618.13

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