计算物理
計算物理
계산물리
CHINESE JOURNAL OF COMPUTATIONAL PHYSICS
2014年
5期
552-558
,共7页
姚军%黄涛%黄朝琴
姚軍%黃濤%黃朝琴
요군%황도%황조금
非均质%低渗透油藏%非线性渗流%油藏数值模拟
非均質%低滲透油藏%非線性滲流%油藏數值模擬
비균질%저삼투유장%비선성삼류%유장수치모의
heterogeneity%low-permeability reservoirs%nonlinear porous flow%numerical simulation
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。
提齣一種適用于非均質低滲透油藏非線性流動數值模擬的方法。通過引入單元邊界壓力和速度兩組物理量,在單箇網格單元中構造數值計算格式,可精確地穫取每箇網格單元的壓力梯度。以單相非線性滲流問題為齣髮點,詳細闡述該方法的基本原理;通過數值算例驗證方法的正確性和適用性。
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.