榆林气田储层地质建模研究

Research on Geologic Modeling of Yulin Gas field

储层地质建模是储层地质和数学的紧密结合、并通过计算机运算获得储层三维地质定量信息的产物,是将储层的结构、地质形态、参数等进行定量化的一种技术手段,是油气田开发生产和研究工作的基础,对油气田勘探开发具有十分重要的意义。本文针对榆林气田某研究区的地质情况,利用序贯指示模拟方法建立榆林气田某研究区的岩相模型,并在相控的地质约束条件下,利用序贯高斯模拟方法建立孔隙度、渗透率等属性模型。然后采用频率直方图、属性相关性等方法对属性模型进行验证。验证结果表明,属性模型符合地质认识,具有较高的可靠性,为后期的数值模拟和动态开发奠定基础。

Reservoir modeling is a quantitative technique of reservoir geology form, structure and parameters, is closely integrated math and reservoir geology, is the basis for the production and research of oil and gas, and is of great significance for oil and gas exploration and development. In this paper, the geology of Yulin gas field was studied. At first sequential indicator simulation method was used to establish facies model of a research area in Yulin gas field, and in a phased geological constraint, sequential Gaussian simulation method was used to establish the models of porosity, permeability and other properties. Then histogram frequency correlation properties and other methods were used to verify the properties of the model. Verification results show that the model is in line with the geological understanding of the properties, has high reliability, and it can lay the foundation for the numerical simulation and dynamic development.