水平井热采油藏数值模型

建立了一个可用于水平井计蒸汽开采的三维三相多组份热采及化学添加剂油藏数值模型.它将水平井筒流动方程进行了水动力学处理,考虑了层流与紊流两种情况,并将全隐式井筒方程与油藏方程相联立,采用自适应隐式格式及先进的数值解法求解.网格系统可以是直角座标、径向座标,也可以采用局部加密网格及混合杂交网格.运用该软件,对辽河油田冷家特稠油油藏采用水平井热采进行了模拟计算.

RESERVOIR NUMERICAL SIMULATOR FOR THERMAL RECOVERY WITH A HORIZONTAL WELL

This paper describes a three-dimentional,three-phase,multi-component thermal and chemical simulator,which can be used to simulate the steam injection process in a horizontal well.The model dynamically incorporates wellbore hydraulics by taking into account two types of flow,that is,laminar and turbulent flows. The fully implicit wellbore equations and reservoir equations are solved with adaptive implicit formulation and an advanced numerical solution method.The grid system is very flexible,it may be cartesian,cylindrical,local grid refinement as well as bybrid grid.Using this model,a simulation study on thermal recovery of an extra-heavy oil reservoir in Liaohe oilfield with horizontal well is conducted.