利用软件系统在工作站上将各种地质信息多层次交互应用，可从三维空间定性、定量地描述油气藏的储层沉积相、储层参数、流体的分布特征和变化规律。依据区域地质分析结合对钻井、粒度等资料的综合解释建立储层沉积相模型。应用算术平均法或权衡法等方法求取储层的渗透率和孔隙度等物性参数；用成岩系数来定量描述储集层成岩作用的综合效应，研究表明成岩系数与渗透率、孔隙度有较好的对应关系；应用渗透率的变异系数、突变系数和极差可研究储层的非均质性；在此基础上建立储层的参数模型。利用油气藏的特征参数建立其数学模型并对油气藏的相态类型进行早期判别。通过上述模型的建立达到为油藏数值模拟与制定开发方案提供精确的地质参数。 Using software system to interactively apply various geologic information on the workstation, the reservoir sedimentary facies, reservoir parameters, distribution characteristics and variation regularities of reservoirs can be qualitatively and quantitatively described from three-dimensional space. Based on the regional geological analysis combined with comprehensive interpretation of drilling, grain size and other data to establish reservoir sedimentary facies model. Using arithmetic mean method or trade-off method to obtain reservoir permeability and porosity, and other physical parameters; using diagenetic coefficients to quantitatively describe the reservoir diagenesis comprehensive effect, the study shows that the diagenetic coefficient and permeability, porosity is more Good correspondence relationship; the permeability coefficient of variation, mutation coefficient and range can be studied reservoir heterogeneity; on this basis, the establishment of reservoir parameters model. The mathematical model is established based on the characteristic parameters of oil and gas reservoirs, and the phase state types of oil and gas reservoirs are discriminated early. Through the establishment of the above model, accurate geologic parameters can be provided for reservoir numerical simulation and formulation and development.