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荆丘油田晋４５断块属第三系砂岩油藏，经多年开采已进入高含水开发后期，大部分油、水井进行过多次酸化改造。随着油井含水上升，层间矛盾加剧，常规酸化工艺已不能适应生产需要。为此在该断块开展了暂堵酸化试验，以先堵后酸的方式取得了较好效果，６口油井累计增油１．６２×１０４ｔ，３口水井累计增注６．２×１０４ｍ３。为同类油田开采提供了有益经验
Jingqiu Oilfield Jin 45 fault block is a Tertiary sandstone reservoir, after years of mining has entered the development of high water cut, most of the oil, wells were acidified many times. As the well water content increases and the contradiction between layers aggravates, the conventional acidification process can no longer meet the production needs. For this purpose, a temporary plugging acidification test was carried out in the fault block, and a good effect was achieved by blocking the acid first. The cumulative oil production in the six oil wells was 1.62 × 104t, and the total volume of the three wells was increased by 6.2 × 104m3. For similar oil field mining provides a useful experience