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Laboratory study of flushing fluid for white oil oil-based muds with high calcium
Author(s): 
Pages: 98-100
Year: Issue:  5
Journal: Petrochemical Industry Application

Keyword:  冲洗液油基钻井液清洗效率高钙盐;
Abstract: 油基钻井液完钻后残留在套管和井壁的油污会影响固井水泥与地层的胶结强度,严重时可导致固井质量.为有效清洗残留的油污,提高水泥环与地层之间的亲水性,本文分析了5#白油的组份及碳数分布,构建了一套抗高钙盐白油基钻井液冲洗液,并对其润湿性和清洗能力进行了评价.实验结果表明,研制的冲洗液能够将油基泥浆表面的亲油性变为亲水性,大大提高固井水泥浆的胶结质量,同时,冲洗液对泥饼表面残余油污具有很好的清洗效果.
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