根据我国油田地质特点 ,在注水开发中 ,后期就开始采取细分开发层系、加密井网 ,提高排液量 ,从而延长了油田稳产 ,本文总结了油田在高含水中后期改善油田开发效果的几种作法 ,并以中原油田文留构造南部文 85块为例 ,说明采用这几种方法综合运用所取得的效果 According to the geological characteristics of China’s oilfields, in the development of waterflooding, the development of the oilfields has been started in the late stage by subdividing the development strata, enriching the well pattern, increasing the drainage volume and prolonging the stable production of the oilfield. Several practices, and to the Central Plains Wen-liu structure of the southern text of 85 as an example to illustrate the use of these methods combined results achieved