大庆榆树林油田树8区块扶杨油层相控储层建模
发布时间：2018-10-16 15:13
【摘要】：榆树林油田树8区块主要研究目的层位是扶余油层、杨大城子油层,位于泉头组三、四段,现开发阶段储层的平面展布、沉积微相的认识及物性分布规律已经成为了制约剩余油挖潜的主要问题。为了解决这些问题,建立精细的储层模型有着重要的意义。因此,本文综合应用岩心、测井、地震等资料,利用随机模拟技术对扶余油层和杨大城子油层进行了相控储层建模研究,得到了以下的成果和认识。首先,基于岩心、测井、地震等资料,建立起扶杨油层精细等时地层格架。以此为基础,对研究区扶杨油层各个沉积时间单元的沉积微相平面展布规律做了深入研究,得到沉积环境为曲流河—浅水三角洲沉积体系,自杨大城子油层至扶余油层相变顺序为:曲流河相→三角洲平原亚相→三角洲前缘亚相→三角洲平原亚相→三角洲前缘亚相,总体呈正旋回。然后,利用井震结合的方法在三维地震数据体中对研究区的构造形态进行了精细刻画,厘清了小断层,研究区构造形态整体表现为“北高南低,东高西低”,且断层发育,断裂特征继承性较好,为储层模型提供准确合理的构造信息。最后,综合应用平面沉积微相和地震构造解释结果,建立了6个油层组顶面构造模型以及75个时间单元的沉积相模型,并且用沉积微相作为约束,应用序贯高斯模拟方法对孔渗资料进行随机建模,建立了研究区的储层物性模型,可指导对扶杨油层各层的油水分布、连通关系以及垂向关系的进一步认识,为油田下一步的勘探开发提供可靠依据。
[Abstract]:The main purpose of the study in Block 8 of Yushulin Oilfield is Fuyu reservoir, Yangdachengzi reservoir, located in the third and fourth member of Quantou formation. The understanding of sedimentary microfacies and the distribution of physical properties have become the main problems restricting the potential of remaining oil. In order to solve these problems, it is very important to establish fine reservoir model. Therefore, based on the core, logging and seismic data, this paper studies the modeling of Fuyu reservoir and Yangdachengzi reservoir by using random simulation technology, and obtains the following results and understanding. Firstly, based on core, logging and seismic data, the fine isochronous stratigraphic framework of Fuyang reservoir is established. On this basis, the distribution of sedimentary microfacies in each time unit of Fuyang oil reservoir in the study area was studied in depth, and the sedimentary environment was found to be a meandering river-shallow water delta sedimentary system. The sequence of phase transformation from Yangdachengzi reservoir to Fuyu reservoir is as follows: meandering river facies delta plain subfacies delta front subfacies and total positive cycle. Then, using the method of combining well and earthquake to describe the structural form of the study area in 3D seismic data body, and clarify the small fault, the structural form of the study area is "north high and south low, east high and west low", and the faults are developed. The inheritance of fault features is good, which provides accurate and reasonable structural information for reservoir model. Finally, based on the results of plane sedimentary microfacies and seismic structural interpretation, the top structural model of 6 reservoirs and the sedimentary facies model of 75 time units are established, and the sedimentary microfacies are used as constraints. The random modeling of pore and permeability data is carried out by using sequential Gao Si simulation method, and the reservoir physical property model in the study area is established, which can guide the further understanding of oil-water distribution, connectivity and vertical relationship in each layer of Fuyang oil layer. It provides reliable basis for the next exploration and development of oil field.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：P618.13
，
本文编号：2274749
[Abstract]:The main purpose of the study in Block 8 of Yushulin Oilfield is Fuyu reservoir, Yangdachengzi reservoir, located in the third and fourth member of Quantou formation. The understanding of sedimentary microfacies and the distribution of physical properties have become the main problems restricting the potential of remaining oil. In order to solve these problems, it is very important to establish fine reservoir model. Therefore, based on the core, logging and seismic data, this paper studies the modeling of Fuyu reservoir and Yangdachengzi reservoir by using random simulation technology, and obtains the following results and understanding. Firstly, based on core, logging and seismic data, the fine isochronous stratigraphic framework of Fuyang reservoir is established. On this basis, the distribution of sedimentary microfacies in each time unit of Fuyang oil reservoir in the study area was studied in depth, and the sedimentary environment was found to be a meandering river-shallow water delta sedimentary system. The sequence of phase transformation from Yangdachengzi reservoir to Fuyu reservoir is as follows: meandering river facies delta plain subfacies delta front subfacies and total positive cycle. Then, using the method of combining well and earthquake to describe the structural form of the study area in 3D seismic data body, and clarify the small fault, the structural form of the study area is "north high and south low, east high and west low", and the faults are developed. The inheritance of fault features is good, which provides accurate and reasonable structural information for reservoir model. Finally, based on the results of plane sedimentary microfacies and seismic structural interpretation, the top structural model of 6 reservoirs and the sedimentary facies model of 75 time units are established, and the sedimentary microfacies are used as constraints. The random modeling of pore and permeability data is carried out by using sequential Gao Si simulation method, and the reservoir physical property model in the study area is established, which can guide the further understanding of oil-water distribution, connectivity and vertical relationship in each layer of Fuyang oil layer. It provides reliable basis for the next exploration and development of oil field.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：P618.13
，
本文编号：2274749
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