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钻探过程中使用泥浆的好坏，对高速、优质、低耗、安全地进行钻进工作关系很大，不同的地层岩性应采用不同类型和性能的泥浆。我队2409井队所施工的钾1井，根据地质情况使用了两大类型的泥浆：见矿前的901米用低碱性石灰泥浆（钙处理泥浆），见矿后用饱和盐水泥浆。使用一年来，虽然并段穿过的地层复杂，但钻进一千三百多米，井内未发生任何异常。现将泥浆使用情况分述如下。
The use of mud in the drilling process is good or bad, for high-speed, high quality, low consumption, safe drilling a great deal of work, different formation lithology should use different types and properties of mud. Two well types of muds were used according to the geological conditions, for the well I-2409 that was constructed by the well I-2409: see the 901-meter low-alkaline lime mud (calcium treated mud) before the mine, and the saturated salt mud after the mine. After one year of use, although the stratum passed through the section was complicated, it drilled over 1,300 meters and no abnormalities occurred in the well. The use of mud is now described below.