中低渗油田提高注水水驱效果配套技术应用

发布时间：2018-01-15 11:36

本文关键词：中低渗油田提高注水水驱效果配套技术应用　出处：《中国石油石化》2016年S2期 　论文类型：期刊论文

【摘要】：随着油田开采程度的提高以及开采强度的加大,注水开发过程中暴露出许多复杂的问题和矛盾。一是部分老油田已经逐步进入高含水期,主力吸水层水淹程度高,油井产量递减、含水上升,无效注水严重。二是注水井注入压力逐年上升导致注水井欠注和注不进现象,已严重影响了油田注水开发效果。本文针对水井堵塞机理,以解除近井地带有机堵塞及地层深部无机堵塞为原则,形成了具有特色的“三酸两液”的多氢酸酸化体系,同时首次应用低渗微球调剖技术,有效封堵了地层窜流通道,提高了水驱波及面积。
[Abstract]:With the improvement of oilfield production degree and the increase of exploitation intensity, many complicated problems and contradictions have been exposed in the process of water injection development. One is that some old oilfields have gradually entered into high water cut period. The main water-sucking zone has high water-flooded degree, oil well production decreases, water cut rises, and invalid water injection is serious. Second, the water injection pressure increases year by year, which leads to the phenomenon of underinjection and non-injection in water injection wells. According to the mechanism of well plugging, the principle of removing organic plugging and inorganic plugging in deep formation is the principle. The characteristic "triacid two solution" multi-hydroacid acidification system was formed. At the same time, the low permeability microsphere profile control technology was used for the first time, which effectively blocked the formation channeling channel and increased the water drive sweep area.
【作者单位】：辽河油田分公司兴隆台采油厂;
【正文快照】： 一、前言兴隆台采油厂1971年投入开发,1974年开始注水,随着开发的不断深入,对地下原油的可采储量采出程度的增加,地下能量日趋减少。目前我厂地质储量26591.04万吨,注水开发储量17617.3万吨,占总地质储量的占全部动用储量的66.25%,占老区储量的87.7%,可采储量为6929.75万吨,注

【相似文献】