本文關鍵詞：中低滲油田提高注水水驅(qū)效果配套技術應用　出處：《中國石油石化》2016年S2期 　論文類型：期刊論文

  更多相關文章： 中低滲 水驅(qū) 配套技術 完善注水

【摘要】：隨著油田開采程度的提高以及開采強度的加大,注水開發(fā)過程中暴露出許多復雜的問題和矛盾。一是部分老油田已經(jīng)逐步進入高含水期,主力吸水層水淹程度高,油井產(chǎn)量遞減、含水上升,無效注水嚴重。二是注水井注入壓力逐年上升導致注水井欠注和注不進現(xiàn)象,已嚴重影響了油田注水開發(fā)效果。本文針對水井堵塞機理,以解除近井地帶有機堵塞及地層深部無機堵塞為原則,形成了具有特色的“三酸兩液”的多氫酸酸化體系,同時首次應用低滲微球調(diào)剖技術,有效封堵了地層竄流通道,提高了水驅(qū)波及面積。
[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.
【作者單位】： 遼河油田分公司興隆臺采油廠;
【正文快照】： 一、前言興隆臺采油廠1971年投入開發(fā),1974年開始注水,隨著開發(fā)的不斷深入,對地下原油的可采儲量采出程度的增加,地下能量日趨減少。目前我廠地質(zhì)儲量26591.04萬噸,注水開發(fā)儲量17617.3萬噸,占總地質(zhì)儲量的占全部動用儲量的66.25%,占老區(qū)儲量的87.7%,可采儲量為6929.75萬噸,注

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