江家店X502断块三维地质建模与储层综合评价

发布时间：2018-01-15 21:41

本文关键词：江家店X502断块三维地质建模与储层综合评价　出处：《西北大学》2015年硕士论文　论文类型：学位论文

【摘要】：三维地质建模是从油藏储层三维空间的层面上对储层特征进行表征,其核心技术是利用空间上已知的点数据对井间位置区域进行预测,得到的结果是油气储层各个地质参数的在三维空间上的数据体。江家店地区X502断块沙三下段地层有良好的油气显示,为搞清断块油藏特征,精确了解有利储层分布情况和石油丰富程度,本文作者对江家店地区X502断块沙三下段地层进行了三维地质建模,在三维地质模型的基础上结合其它已知数据进行了有利区预测,期望对该地区以后的勘探开发提供有指导意义的参考数据。江家店地区X502断块沙三下段位于惠民凹陷西南部断层分布区,又由于地层埋藏深度比较大,储层渗透率较低,研究区储层属于复杂断块低渗透油藏。为了划分油水层,利用测井曲线数据结合岩心测试、试油等数据确定到了油水层划分标准和测井二次解释模型,并利用解释模型进行了基于地质条件约束的测井二次解释进而对研究区进行了小层划分。对储层建立三维地质模型是当前油田储层地质研究的关键工作,本文研究区X502断块断层密度大,构造形态复杂,因此对研究区首先进行了构造建模。在构造模型的基础上利用测井解释数据建立岩相模型,基于岩相模型对断块内9个小层的孔隙度、渗透率、饱和度等地质属性参数进行了“相控”随机模拟。相控模拟特点就是在在岩相模型的约束下,在砂体发育的区域模拟储层含油性参数,基于这种方法得出的模拟结果更契合寻找含油有利区的最终目的。通过对研究区进行三维地质建模和综合地质研究,对X502断块沙三下段储层的构造特征、砂体展布规律和储层物性参数分布情况都有了比较清楚的认识,为该地区今后勘探开发工作的安排部署提供了有利的依据。
[Abstract]:Three-dimensional geological modeling is to represent the reservoir characteristics from the three-dimensional space of reservoir. The core technology is to use the known point data on the space to predict the cross-well location area. The result is the 3D spatial data body of each geological parameter of oil and gas reservoir. The lower formation of X502 fault block sand 3 in Jiangjiadian area has good oil and gas display, which is to make clear the reservoir characteristics of fault block. In order to accurately understand the distribution of favorable reservoir and the degree of oil abundance, the authors of this paper have carried out 3D geological modeling of the lower formation of Sha3 formation of X502 fault block in Jiangjiadian area. Based on the 3D geological model, the favorable areas are predicted with other known data. It is expected to provide reference data for future exploration and development in this area. The lower part of fault block X502 in Jiangjiadian area is located in the southwestern fault distribution area of Huimin sag, and because of the relatively large buried depth of strata. The reservoir permeability is low, the reservoir in the study area belongs to the complex fault block low permeability reservoir. In order to divide the oil-water layer, the logging curve data is combined with the core test. The oil and water layer division standard and the logging secondary interpretation model are determined by the oil testing data. Using the interpretation model, logging secondary interpretation based on the constraints of geological conditions is carried out, and the study area is divided into small layers. It is the key work of reservoir geological research to establish a three-dimensional geological model of the reservoir. In this paper, the fault density of X502 fault block is high and the structure form is complex. Therefore, the structural modeling is first carried out in the study area. On the basis of the structural model, the lithofacies model is established by using log interpretation data. Based on the lithofacies model, the porosity, permeability, saturation and other geological attribute parameters of 9 layers in the fault block are simulated by "phase control" random simulation. The characteristics of facies control simulation are under the constraints of lithofacies model. The simulation results based on this method are more suitable for the final purpose of finding favorable oil-bearing areas. Through the three-dimensional geological modeling and the comprehensive geological research in the study area, the oil-bearing parameters of reservoir are simulated in the area of sand body development. A clear understanding of the structural characteristics of the reservoir, the distribution of sand body distribution and the distribution of reservoir physical parameters in the lower member of Sha 3 in X502 fault block has been obtained. It provides a favorable basis for the arrangement and deployment of the future exploration and development work in this area.
【学位授予单位】：西北大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P618.13

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