摘要
对于特高含水多层砂岩油田,经过多年注水开发后,储层非均质特性发生变化的同时流体特性也发生了一定的变化,尤其是随着含油饱和度的变化流体黏度与初始状态差别较大,而这些变化直接影响了分层渗流阻力计算结果。因此,为了更精确地制定特高含水期分层注水方案,在分析层间干扰程度时,不能仅考虑静态参数的影响。基于油藏工程理论、室内实验和数值模拟研究方法,建立了综合考虑地质参数和原油黏度动态变化的渗流阻力计算模型,明确了基于渗流阻力的特高含水期分层注水界限。
For multi-layer sandstone oil fields entering the ultra-high water cut period,the reservoir heterogeneity characteristics and fluid characteristics have changed after years of water injection development,especially the fluid viscosity differs greatly from the initial state when the oil saturation changes,which directly affects the calculation results of stratified seepage resistance.Therefore,in order to more accurately formulate the layered water injection scheme in the ultra-high water cut period,the influence of static and dynamic parameters should be considered simultaneously when analyzing the interlayer interference degree.In this paper,a seepage resistance calculation model was established based on reservoir engineering theory and laboratory experiment and numerical simulation,geological parameters and dynamic changes of crude oil viscosity were taken into consideration,and the technical boundary of stratified water injection in ultra-high water cut period based on seepage resistance was defined.
作者
董驰
张保滨
吴桐
张晓娟
杨二龙
DONG Chi;ZHANG Bao-bin;WU Tong;ZHANG Xiao-juan;YANG Er-long(Key Laboratory of Enhanced Oil&Gas Recovery of Ministry of Education,Northeast Petroleum University,Daqing 163318,China;Research Institute of Petroleum Exploration and Development,PetroChina,Beijing 100083,China;No.4 Oil Production Plant of Daqing Oil Field Co.,Ltd.,Daqing 163511,China)
出处
《当代化工》
CAS
2021年第10期2513-2516,共4页
Contemporary Chemical Industry
基金
黑龙江省自然科学基金项目,基于数据驱动的特高含水油藏层间干扰机理研究(项目编号:LH2021E013)
国家自然科学基金重点项目,驱油相自扩大波及体积提高采收率新方法(项目编号:51834005)。
关键词
特高含水
层间干扰
渗流阻力
动态黏度
Ultra-high water cut
Interlayer interference
Seepage resistance
Dynamic viscosity
