基于动态数据反演的相渗曲线及应用效果

The relative permeability curve based on dynamic data inversion and its application effect

崔传智 郑文乾 李立峰 冯绪波 吴忠维

CUI Chuanzhi ZHENG Wenqian LI Lifeng FENG Xubo WU Zhongwei

中国石油大学(华东)石油工程学院 中国石化江苏油田分公司采油一厂

College of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, Shandong, China No.1 Oil Production Plant, SINOPEC Jiangsu Oilfield Company, Yangzhou 225265, Jiangsu, China

在油藏注水开发过程中，油藏储层物性、开发方式等动态数据发生变化都会综合反映在生产数据中，因此基于油藏动态数据反演的相对渗透率曲线更具有代表性。从相对渗透率曲线的表征出发，结合油藏工程方法，建立了基于动态数据反演的相对渗透率曲线，并将其运用于实际油藏，最后采用数值模拟技术对比分析了岩心驱替和动态数据反演获得的相对渗透率曲线对剩余油分布的影响。结果表明，与岩心驱替所得相渗曲线相比，基于动态数据反演的相渗曲线的相对渗透率高，对应的残余油饱和度低；基于动态数据反演的相对渗透率能更加真实的反映油水流动能力，在数值模拟中有较好的应用效果。该研究为水驱开发油藏后期开发优化提供理论支撑。

During the waterflooding development of an oil reservoir, the variations of its reservoir physical properties and development modes are reflected comprehensively in the production data, so the relative permeability curve based on the dynamic data inversion of oil reservoir is more representative. In this paper, the relative permeability curve was firstly characterized. Then, combined with the reservoir engineering method, the relative permeability curve based on dynamic data inversion was established and applied to real oil reservoirs. Finally, the effect of the relative permeability curve obtained on the basis of core displacement on the distribution of remaining oil was compared with that based on dynamic data inversion by means of the numerical simulation technology. It is indicated compared with the relative permeability curve obtained on the basis of core displacement, the relative permeability curve based on dynamic data inversion is higher and the corresponding residual oil saturation is lower. The relative permeability based on dynamic data inversion can reflect the flowing capacity of oil and water more accurately and its application effect in numerical simulation is better. The research results provide the theoretical support for optimizing the late development of waterflooding oil reservoirs.

10.13639/j.odpt.2019.04.018