罗布泊盐湖深部钾盐地质科学钻探LDK02孔冲洗液工艺

Exploration Engineering(Rock & Soil Drilling and Tunneling)(2019)

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Abstract
罗布泊盐湖深部钾盐地质科学钻探LDK02孔钻遇地层主要为第四系松散层,其中,卵砾石层及砂层孔段易发生坍塌埋钻事故,粘土层孔段易缩径卡钻,导致钻探施工中孔壁极不稳定、极易引发孔内事故;现场使用卤水配制冲洗液,对冲洗液处理剂性能影响较大,导致配制的冲洗液胶体稳定性差、易沉淀分层、不能有效悬浮和携带岩粉.针对上述问题,对现场卤水进行了离子成分分析,选用抗盐性能好的处理剂配制卤水冲洗液,在LDK02孔现场应用,取得了良好效果,保证了钻探施工的顺利实施.
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