榆树地区扶余油层沉积特征研究

发布时间：2018-06-09 15:59

本文选题：松辽盆地 + 榆东地区　；参考：《东北石油大学》2015年硕士论文

【摘要】：随着油气勘探的进展,大庆油田致密油勘探相继获得发现,致密油条件储层条件较好的扶余油层越来越成为松辽盆地北部油气勘探的主力层系。本文在勘探新形势下,利用丰富的钻井资料,结合三维地震资料、测井资料,对榆东地区扶余油层沉积特征进行了研究,研究过程中对榆东地区扶余油层进行地层划分对比,建立层序地层格架,在此基础上进行了沉积相研究,并根据沉积特征对榆东地区扶余油层油气有利区带进行了预测。通过对榆东地区上百口钻井资料的研究,结合地震剖面、测井解释,依据适应研究区地质背景的地层对比原则,将榆东地区扶余油层划分为3个油层组,并进一步划分为6个小油层组。通过对榆东地区地层厚度、砂体厚度及砂地比的研究,查明了榆东地区扶余油层物源方向。通过岩石的颜色、沉积结构构造及测井曲线特征,揭示了榆东地区扶余油层沉积特征、沉积演化规律、沉积体系类型以及展布特征。研究认为榆东地区扶余油层发育浅水三角洲沉积,并进一步划分为三角洲平原和三角洲前缘2种亚相以及10种沉积微相类型。详细描述扶余油层沉积微相的展布特征,精细刻画砂体分布规律,由此建立了符合榆东地区扶余油层的沉积相模式。研究沉积特征是为了对油气有利区带进行预测,在沉积相研究的基础上,本文分析了研究区沉积相与油气分布的关系,进一步研究了油气水分布规律,以此为依据指导油气有利区带的预测,并对有利区进行优化,以达到油气勘探开发的目标。
[Abstract]:With the development of oil and gas exploration, dense oil exploration in Daqing Oilfield has been discovered one after another. Fuyu reservoir with better tight oil condition has become the main layer of oil and gas exploration in the north of Songliao Basin. Under the new situation of exploration, using abundant drilling data, combined with 3D seismic data and logging data, this paper studies the sedimentary characteristics of Fuyu reservoir in Yudong area, and makes stratigraphic division and correlation of Fuyu reservoir in Yudong area. The sequence stratigraphic framework was established and the sedimentary facies were studied on the basis of which the favorable oil-gas zones of Fuyu reservoir in Yudong area were predicted according to the sedimentary characteristics. Through the study of hundreds of drilling data in Yudong area, combined with seismic profile and log interpretation, according to the principle of stratigraphic correlation adapted to the geological background of the study area, the Fuyu reservoir in Yudong area is divided into three reservoir groups. It is further divided into 6 small reservoirs. Based on the study of formation thickness, sand body thickness and sand land ratio in Yudong area, the source direction of Fuyu reservoir in Yudong area was found out. Based on the color, sedimentary structure and logging curve of the rocks, the sedimentary characteristics, sedimentary evolution rules, sedimentary system types and distribution characteristics of Fuyu reservoir in Yudong area are revealed. It is considered that shallow water delta deposits are developed in Fuyu oil formation in Yudong area and are further divided into two subfacies of delta plain and delta front and 10 types of sedimentary microfacies. The distribution characteristics of sedimentary microfacies in Fuyu reservoir are described in detail and the distribution law of sand body is described in detail. The sedimentary facies model of Fuyu reservoir in Yudong area is established. The purpose of studying sedimentary characteristics is to predict the favorable zones of oil and gas. Based on the study of sedimentary facies, the relationship between sedimentary facies and oil and gas distribution in the study area is analyzed in this paper, and the distribution law of oil, gas and water is further studied. In order to achieve the goal of oil and gas exploration and development, this paper guides the prediction of favorable zones of oil and gas and optimizes the favorable zones.
【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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