This paper studies affects of polyalcohol turbidity point on lubrication and inhibition of drilling fluids, discusses its mechanisms by measuring attachment coefficient and shale inhibition.

• 采用测定粘附系数和页岩抑制率的方法研究了聚合醇在浊点前后对钻井液润滑性和抑制性的影响,探讨了其作用机理。