聚合物驱注入方式敏感性研究

SENSITIVITY STUDY ON INJECTION WAY OF POLYMER FLOODING

王新海 王德辰 郭卫忠

Wang Xinhai Wang Dechen Guo Weizhong

江汉石油学院 玉门石油管理局 胜利石油管理局

设计了6种不同注入方式,利用三维两相四组分聚合物驱模拟器,研究了在不同非均质类型、不同各向异性、不同转注时间情形下,聚合物驱油效益对注入方式的敏感性。一般来说,水驱效果愈差的油藏对聚合物注入方式愈敏感,对于纵向层内非均质油藏,正韵律比反韵律对注入方式更为敏感;对于平面非均质油藏,主流线高渗油藏比主流线低渗油藏对注入方式更为敏感;早转注聚合物溶液比晚转注聚合物溶液对注入方式敏感。

This paper presents 6 ways of polymer injection,and studies the sensitivity of injection way on polymer water flooding results for the conditions of different heterogeneity,different anisotropy and different polymer injection time with the aid of three-dimension two-phase four-component polymer water flooding simulator.In general,the reservoir with the poor waterflooding effectiveness is sensitive to polymer injection way.For longitudinal intraformational heterogeneous reservoir,the normal sedimentary sequence is more sensitive than reverse sedimentary sequence to injection way;for the horizontal heterogeneous reservoir,the reservoir of main streamline with higher permeability is more sensitive than that with lower permeability;early polymer injection is more sensitive than late injection.

10.3969/j.issn.1000-7393.1996.03.015