储层地质模型建立步骤

本文系统介绍了单砂体模型、单井模型、二维模型和三维模型的建立步骤，是目前较为普及和实用的一种建模过程。文章对每种模型的关键点、参数选取和方法都作了概要的叙述，这一方法和步骤特别是对油田开发早期的模型建立具有很好的实用性。

THE STEPS OF RESERVOIR GEOLOGICAL MODELING

The geological modeling can be divided into three steps:single sandbody het-erogeneity model,single-well model.2-Dmodel(includes surface model and profilemodel)and 3-D model.In single sandbody heterogeneity model,it reflects the inner-layerheterogeneity of main reservoir in the oilfield,and gives the basic data to reservoir engi-neer.The second step is to built single-well model.It includes the position and thicknessof the sand layer, the subthickness and parameters of inner-layer and average parameter ofeach layer.The third step is to built 2-D model,including the surface model and profilemodel,The main content in profile model includes the width of sand,connectedness ofsandbodies and their relationship, parameter distribution in sandbodies.For 2-D surfacemodel,the main content includes the shape and orientation of sandbodies,continuity ofsand and parameter distribution in surface,In 3-D model,we first develop the surfacemodel of each layer and then put them one by one from bottom to top together,it is thepseudo 3.Dmodel of the whole oilfield.