摘要
为了提高微生物采油数值模拟软件模拟计算的准确性和稳定性,基于前期对微生物迁移滞留的实验研究成果,引入全新的微生物运移模型方程,体现了不可及孔隙体积、吸附作用和筛分作用对微生物在油藏中分布状态的影响,构建了能够反映微生物采油过程的一维两相(油、水)三组分(微生物、营养物以及代谢产物)数学模型。通过编制程序,模拟微生物采油过程,对不可及孔隙体积、吸附作用和筛分作用进行敏感性分析。结果表明:该模型可以模拟微生物采油过程,反映不可及孔隙体积、吸附作用和筛分作用对驱油过程的影响较为敏感,通过引入这些参数可以实现对微生物浓度分布、含水率和采收率的准确预测,为微生物采油施工方案的编制提供了一种数值模拟方法。
To improve the accuracy and stability of the calculation of numerical simulation software for microbial enhanced oil recovery,we introduced a new model equation for microbial migration that reflects the influence of inaccessible pore vol⁃ume,adsorption,and screening effect on the distribution of microorganisms in the reservoirs based on the previous experi⁃mental results on the migration and retention of microorganisms.Then,a one-dimensional,two-phase(oil and gas),and three-component(microorganisms,nutrients,and metabolites)mathematical model for microbial enhanced oil recovery was constructed.Through programming,the process of microbial enhanced oil recovery was simulated for the sensitivity analysis of inaccessible pore volume,adsorption,and screening effect.Consequently,the model could simulate the process of micro⁃bial enhanced oil recovery which is sensitive to inaccessible pore volume,adsorption,and screening effect.These parame⁃ters could be introduced for the accurate prediction of microbial concentration distribution,water cut,and recovery,offering a numerical simulation method to the preparation of construction schemes for microbial enhanced oil recovery.
作者
毕永强
胡张明
王国柱
闫蕊
修建龙
BI Yongqiang;HU Zhangming;WANG Guozhu;YAN Rui;XIU Jianlong(School of Mechanical Engineering,Xi’an Aeronautical University,Xi’an City,Shaanxi Province,710077,China;CNPC XDEC Geological Research Institute,Karamay,Xinjiang,834000,China;No.6 Oil Production Plant,Changqing Oilfield Company,PetroChina,Yulin City,Shaanxi Province,718600,China;Research Institute of Petroleum Exploration and Development,PetroChina,Beijing City,100083,China)
出处
《油气地质与采收率》
CAS
CSCD
北大核心
2021年第2期34-40,共7页
Petroleum Geology and Recovery Efficiency
基金
国家自然科学基金青年科学基金项目“考虑空气的弹性壳抨击水面的光滑粒子法研究”(11802219)
陕西省自然科学基础研究计划项目“产聚微生物调剖驱油机理及数学模型优化研究”(2019JM-396)。
关键词
微生物采油
吸附作用
筛分作用
不可及孔隙体积
数值模拟
microbial enhanced oil recovery
adsorption
screening effect
inaccessible pore volume
numerical simulation
