聚合物驱油井无因次流入动态方程及其应用  

Application of Dimensionless Inflow Performance Relationship Equation of Oil Well for Polymer Flooding

作　　者：王全[1] 康晓东[1] 陈冠中[1] 未志杰 刘玉洋 WANG Quan;KANG Xiao-dong;CHEN Guan-zhong;WEI Zhi-jie;LIU Yu-yang(State Key Laboratory of Offshore Oil Exploitation,CNOOC Research Institute Co.,Ltd.,Beijing 100028,China)

机构地区：[1]海洋石油高效开发国家重点实验室中海油研究总院有限责任公司

出　　处：《科学技术与工程》2020年第1期159-163,共5页Science Technology and Engineering

基　　金：国家科技重大专项(2016ZX05025-003)

摘　　要：常规的油井流入动态模型不能用于分析聚合物驱油井的流入动态关系,现有聚驱油井流入动态模型求解普遍较为复杂,不便于现场应用。通过无因次化处理得到了聚驱油井的无因次流入动态方程,以数值模拟技术为手段,研究了不同地质油藏条件、不同流体性质和不同聚合物溶液性质的聚驱油藏的油井流入动态状况,仿照Vogel处理溶解气驱油藏无因次流入动态曲线的方法进行非线性拟合回归,得到了便于现场应用的无因次流入动态方程。实例计算结果验证了方程的可靠性,可用来计算油井的流入动态,能够为聚驱油藏油井的生产动态分析和合理工作制度制定提供参考。At present,conventional oil well inflow performance model cannot be used to analyze the inflow performance relationship(IPR)of polymer flooding wells.Solutions of available inflow performance models for polymer flooding wells are often complicated,and they are not convenient for field applications.A dimensionless inflow performance(DIP)equation for polymer flooding wells was developed by dimensionless treatment.Using numerical simulation techniques,the inflow performance of polymer flooding reservoirs was studied in different geological reservoir conditions,fluid properties,and polymer solution properties,and non-linear fitting regression was performed by following Vogel’s method to treat the dimensionless IPR curve of dissolved gas flooding reservoirs.At last,a DIP equation that is easy for field applications was proposed,and the reliability of the equation was verified in a case study.It is believed that the equation can be used to calculate the inflow performance,and can provide a reference to the production performance analysis and to the determination of rational work system of oil wells in polymer flooding reservoirs.

关 键 词：聚合物驱 流入动态 无因次 流入动态曲线 数值模拟 

分 类 号：TE357[石油与天然气工程—油气田开发工程]