八面台油田三低储量有效注水开发实践与认识

八面台油田青一段高台子油层储量丰富，但属于三低（低渗、地丰度、低产）储量，开发难度大、产能低、欠注问题严重、开发矛盾突出。在借鉴以往三低储量开发经验和教训的同时，通过在八面台油田开展多种方式的有效注水试验得出：在保证油田开发经济合理的前提下，针对各区块地质特征分别实行早期注水（可减缓产液递减趋势），尽可能缩短油水井排距。采用陶粒做支撑剂加大压裂规模，提高注入压力，实施强化注水等方法，可提高注水开发效率。

An Effective Waterflood Development Practice of Three-low Reserves and Its Knowledge in Bamiantai Oilfield

The oil reserves are quite rich oilfield,but it is difficult to develop them low production） natures.In combination with in Gaotaizi bed, First Member of because of their three-low （low considering existed experiences of Qingshankou Formation, Bamiantai permeability,low abundance and three-low reserves development,an effective waterflood development experiment is conducted by several ways in the oilfield.This development practice has indicated that under a prerequisite of economical and reasonable oilfield development ,the waterflood development efficiency of three-low reserves can be improved by applying different techniques to blocks with different geological features ,including early water flooding（it may reduce a declining trend of liquid production） ,decreasing array distances of production and injection wells as short as possible ,increasing fracturing scale by using ceramsite as proppant,increasing injection pressure and enhanced water flooding.