钢丝投捞井下关井工艺在轮南油田注水压降试井中的应用
Journal of Chengde Petroleum College(2021)
Abstract
轮南油田注水开发多年,地层压力偏低,注水井压降试井资料受油压落零、液面下降影响,80%压降试井曲线形态发生"异变",导致储层特征识别不清、资料解释困难,采用井下关井工艺可以从根本上消除这些影响.钢丝投捞式井下关井工艺在轮南油田首次推广应用两口井,均获得了高质量试井资料,与前期所测资料对比,双对数曲线井储时间短,早期特征全,径向流明显,可供解释的地层信息丰富.
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