袁华东

• 1:湖北省地质局第六地质大队

摘要(Abstract)：

随着钻探工程向着复杂地层地区的发展，传统的植物胶钻井液难以满足护壁和取心的目的。本文研究了魔芋胶钻井液及微泡剂改性魔芋胶钻井液的滤失量、流变特性和防塌性能，结合某白云岩矿的现场取心对高聚物改性钻井液的护壁取心效果进行验证。研究发现：增加魔芋胶和微泡剂浓度均能提升钻井液的防滤失和流变特性；新型高聚物改性钻井液的最佳配比为水∶魔芋胶∶微泡剂=1 000∶7∶7。通过现场护壁取心试验表明，改性钻井液的取心率高达90%以上，且护壁效果良好，能很大程度上提高钻孔效率。

关键词(KeyWords)： 钻探工程;植物胶钻井液;魔芋胶;微泡剂;最佳配比

Abstract:

Keywords:

基金项目(Foundation): 湖北省自然资源厅地质勘查项目“湖北省广水市余店矿区白云岩矿普查”[2020]16号）

作者(Author): 袁华东

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