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介绍了所研制的ＤＦ－ｌ型泡沫剂组分及性能；对泡沫泥浆钻进的配方进行了研究，得出的最优配方应用于现场，取得了较好的效果、并对泡沫泥浆的护壁机理进行了研究。
The composition and properties of the developed DF-1 foaming agent were introduced. The formula for drilling the foam mud was studied. The optimal formulation was applied to the site and good results were obtained. Mechanism was studied.