地质建模是油藏描述的核心，构造建模更是整个地质建模和后续相关地质研究的基础。本文主要分析了带断层和层面约束的储层精细建模过程和储层模型的三维可视化相关方法。并在此基础上，分析了油藏的数值模拟，进行了储层参数的历史拟合。 储层构造建模分为三个过程：层面建模、断层建模和层序建模。层面建模中分析了层面数据的Delaunay三角网和矩形网剖分，并对Delaunay三角网剖分中的逐点插入法进行了改进，通过将数据点按照横坐标的大小进行排序，以便插入新的数据点时，可以较快地找到最有可能包含当前数据点的三角形。在网格剖分的基础上重点分析了克里金插值算法，对整个层面数据的未知网格点进行了基于不同变异函数模型的插值。变异函数中分析了球状模型、指数模型和线性模型，并对指数模型中参数的求解进行了改进，通过泰勒级数的展开，将指数函数转化为线性函数，以便于用最小二乘法进行参数的确定。断层模型中分析了加权平均法生成线性断层柱，并对层面模型进行了断裂恢复。最后将地层按层序网格表征方式细分，分析了层序模型。 在构造模型的基础上，分析了地质参数的属性建模，包括孔隙度和渗透率的三维模型，并对孔隙度三维模型进行了粗化处理。建立了相应的数学模型和差分模型，运用IMPES方法进行求解，建立了隐式压力和显示饱和度方程。模拟计算结果表明，数模所计算出的地质储量和油藏描述后所提供的地质储量基本一致；单井地层压力变化规律与实际生产动态压力一致；采油井含水率与实际含水率走势基本一致，拟合效果较好。

Geological modeling is the core of the reservoir description.and structure modeling is the basis of the entire geological modeling and subsequent geological studies.This paper focused on the fine modeling process of reservoir with faults and level constraints,and implemented the three-dimensional visualization of reservoir model.On this basis, this study finished the numerical simulation of the reservoir and realized the history matching of reservoir parameters. The structure modeling of reservoir is divided into three processes,which are consisted of level modeling, fault modeling and sequence modeling.In the level modeling,this paper discussed the subdivision of Delaunay triangulation mesh and the rectangular mesh,and improved the insertion point by point of the Delaunay triangular mess subvision.Through ordering these points from smallest to largest by horizental,this methord can quickly found the mostly likely triangle which contained the current data when a new data was insered.Based on the mess subdivision,the next was to analysis the kriging interpolation algorithm with emphasis,and interpolated the unknown points of the entire grid. Then this paper analysised the spherical model,the exponential model and the linear model of vagriogram,and improved the simulation of parameters in the exponential model. Through Taylor series expansion, the exponential function was converted to linear function, in order to use the least square method to determine the parameters.The study discussed the weighted average method to generate linear fault pillar in the fault modeling,and recover the fracture of level modeling.Finally this paper subdivided the strata according to the sequence grid characterization methods, and analysised the model of the sequence. On the basis of the structure modeling,this paper analysised the three-dimensiona attribute modeling of geological parameters,which included the porosity, permeability and water saturation,and processed the corresponding roughening. The method of IMPES established the shown pressure and the implicit saturatin equation according to the corresponding mathematical equations and differential equations.The research result shows that the geological reserve calculated by numerical simulation is consistent with that of reservoir description; single well formation pressure is basically consistent with the actual formation pressure; the moisture content of production well is basically consistent with the actual moisture content and the fitted values are very accurate.