摘要
针对油藏模拟的高精度快速计算需求,本文将特征正交分解方法应用于对油藏模拟控制方程的降维处理,建立了油藏单相流的POD低阶模型。在90个算例中,对渗透率均匀/非均匀分布、各向同性/各向异性等情况,所建立的油藏单相流POD模型的计算结果相对于有限差分法计算结果的偏差在10^(-6)~10^(-3)量级范围内,计算时间约为有限差分法的1/3000~1/9000。
For demands of high-precision and fast calculation in reservoir simulation, proper orthogonal decomposition method is applied to reduce the degrees of freedom for governing equations of reservoir simulation. A reduced-order model for single-phase reservoir flow is established. Model results are compared in 90 cases with uniform/non-uniform, isotropic/anisotropic permeability. Relative deviations of POD results from finite difference （FDM） results are in the magnitude of 10^-6-10^-3. Computational time of the POD reduced-order model is about 1/3000-1/9000 of that of FDM.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2017年第11期2435-2439,共5页
Journal of Engineering Thermophysics
基金
国家自然科学基金资助项目(No.51576210
No.51325603)
中国石油大学(北京)科研基金资助项目(No.2462015BJB03
No.2462015YQ0409)
King Abdullah University of Science and Technology(KAUST)grant BAS/1/1351-01-01
关键词
POD
油藏模拟
低阶模型
单相流
POD
reservoir simulation
reduced-order model
single-phase flow
