CAJ | 학술논문

提出一种适用于非均质低渗透油藏非线性流动数值模拟的方法。通过引入单元边界压力和速度两组物理量，在单个网格单元中构造数值计算格式，可精确地获取每个网格单元的压力梯度。以单相非线性渗流问题为出发点，详细阐述该方法的基本原理；通过数值算例验证方法的正确性和适用性。
제출일충괄용우비균질저삼투유장비선성류동수치모의적방법。통과인입단원변계압력화속도량조물리량，재단개망격단원중구조수치계산격식，가정학지획취매개망격단원적압력제도。이단상비선성삼류문제위출발점，상세천술해방법적기본원리；통과수치산례험증방법적정학성화괄용성。
A numerical method is developed to model nonlinear flow in heterogeneous and low-permeability reservoirs. In order to obtain pressure gradient of each gridcells precisely, we introduced two sets of physical quantities, cell face pressures and surface efflux for each gridcell. Principle of the method is elaborated based on single-phase fluid flow problem. Several numerical examples are presented to demonstrate efficiency and applicability of the scheme.