冀中地区为对付易垮坍的泥页岩地层,先后使用过不含钾的聚磺泥浆和低钾盐聚合物树脂泥浆。但对蒙脱石含量高的地层或打探井就出现了新问题,于是又研制出钾基聚磺泥浆。它是用国内研制的三轴应力防塌试验仪,对现有处理剂和水基泥浆配方筛选得到的一种新型抑制性泥浆。本文叙述了该泥浆的室内试验、现场应用及效果分析。 Jizhong area to deal with collapsible shale formation, has used potassium-free polysulfonate mud and low potassium polymer resin slurry. However, there are new problems in strata or exploration wells where the content of montmorillonite is high, so potassium-based polysulfonate mud is also developed. It is developed by the domestic triaxial stress collapse tester, the existing treatment agent and water-based mud screening formula obtained a new type of inhibitory mud. This paper describes the mud in laboratory tests, field applications and effects analysis.