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,降低井壁与钴具(或套管)之间的摩擦,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。根据目前使用钻井液润滑剂存在的不足,提出研制一种新型钻井液润滑剂,通过正交实验优选了润滑剂配方,经室内实验和现场试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。 Drilling fluid lubricant is an important drilling fluid chemical treatment agent. Its role is to improve the lubricity of the drilling fluid, reduce the friction between the borehole wall and the cobalt tool (or casing), reduce the drill string rotation torque and drill down resistance, thereby reducing the occurrence of stuck pipe drilling accidents. According to the shortcomings of the current use of drilling fluid lubricants, a new drilling fluid lubricant is proposed. The lubricant formulation is optimized through orthogonal experiments. The indoor and field tests show that the lubricant has good lubricity and good compatibility with drilling fluid , Non-toxic, little impact on the environment.