呼图壁储气库呼2井封井工艺技术

Xinjiang Petroleum Geology(2012)

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Abstract
呼2井是发现呼图壁气田的第一口井,该井井身结构复杂,井内有落鱼。建设呼图壁储气库,有一批类似呼2井的老井需要封堵,能否有效封堵呼2井,是呼图壁油气田改建地下储气库的关键。施工中,根据地质情况,结合工程需要,采用超细水泥浆体系和G级微膨胀水泥浆对产层、隔层和井筒分别进行封堵,取得了成功。该井的封堵成功,对储气库的其他老井封堵具有借鉴意义。
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Key words
well plugging,gas storage,Hutubi,superfine cement
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