
2016年10月第35卷第5期
大庆石油地质与开发
Petroleum Geology and Oilfield Development in Daqing
DOI:10.3969/J.ISSN.1000-3754.2016.05.009
分布式并行油藏模拟高效求解器的构建
赵国忠
(大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712)
Oet.,2016 Vol. 35 No. 5
摘要:在分析、借鉴近年来油藏模拟线性系统求解器研究进展与数值实验的基础上,考虑自有并行模拟器的架构特点,以简洁实用为目的采取两步预处理方法,构建了新的高效求解器。在第一步预处理过程中,把构成雅可比矩阵的累积项和流动项分开考,提出了不同于以往的解耦矩阵;在第二步预处理方法的选择上,兼顾了分布式并行的实现便利和处理效率,提出了采用:方向线红黑排序的块高斯-赛德尔法(ZLBCS)送代求解方案。 SPE标准算例和油凝模拟实例测试都显示,新的并行求解器计算效率高于采用ASM+BILU单步预处理的原有求解器,提升了自主并行模拟器的性能。
键词:油藏模拟;求解器;分布式并行关
中图分类号:TE319
文献标识码:B
文章编号:1000-3754(2016)05-0053-05
ESTABLISHMENTOFTHEHIGH-EFFICIENCYSOLVERFOR
DISTRIBUTEDPARALLELRESERVOIRSIMULATION
ZHAO Guozhong
(Exploration and Derelopment Research Institute of DaqingOilfield Co Lud.,Daqing 163712,China)
Abstract: On the bases of analyzing and referring the recent research advances and numerical experiments of the solver in the linear system of the oil reservoir simulation, considering the infrastructural features of the in-house par-allel simulator, a new high-efficiency solver was established for the goal of simplicity and practicality by the use of two-stage preconditioning method. In the process of the first step, the decoupling matrix different from ones accept-ed widely in the past was proposed by splitting the accumulative item and flux parts of Jacobi matrix; on the choice of the second step preconditioning method, taking the convince and efficiency into account for the distributed paral-lel simulation, Z-line red/black-ordering block Gauss-Seidel (ZLBGS) iterating method is proposed, The test re sults from SPE standard modeling and actual field simulation both demonstrate that the computing efficiency by the aaaosee
formances of the in-house parallel simulator have been promoted. Key words: reservoir simulation; solver; distributed parallel
油藏数值模拟已逐渐成为油气田开采活动中的产能评价、开发决策、方案设计、剩余油认识和生
收稿日期:2016-04-27
改回日期:2016-06-16
产措施优化等技术环节越来越重要的依赖工具。这项技术的发展主要针对模拟器功能、精度和效率三
基金项目:中国石油天然气集团公司重大科技专项“大庆油田原油4000万吨持续稳产关键技术研究”(2011E-12)。作者简介:赵国忠,男,1964年生,教授级高级工程师,硕士,从事油藏数值模拟研究。
E-mail;zhaoguozh@ petrochina. com. cn
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