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钻井液润滑剂是一种重要的钻井液化学处理剂，它的作用是改善钻井液润滑性，降低井壁与钻具（或套管）之间的磨擦，降低钻柱旋转扭矩和起下钻阻力，从而减少卡钻事故的发生。文章根据目前使用的白油钻井液润滑剂存在的不足，提出研制一种新型白油钻井液润滑剂。通过正交实验优选了润滑剂配方。经室内实验和现场实验证明该产品润滑性能好，与钻井液配伍性好，无毒性对环境影响小。

Study on a New Type Drilling Fluids with White Oil Lubricant HML-1

A lubricant is one kind of important chemical additives in drilling fluids,whose functions are to improve the lubricity of drilling fluids,to ease the friction between the well wall and the drilling tools (or casing),and to weaken the rotation torque of strings and resistance during the round trip so as to lessen the danger of drilling pipe sticking.According to the shortcomings in using the white oil lubricant in drilling fluids at present,another new type white oil lubricant is put forward to be studied on.The ingredients of this lubricant is finely chosen in a special way through perpendicular experiments.After experiments in labs and on fields,this lubricant is eventually proved to be excellent with good properties of fine lubricity,compatibility with drilling fluids and being poisonless (little bad effects on the environment).