目前聚合物钻井液存在η_∞与τ_c、I_m之间不能有效调节,以及流变参数优控与井壁稳定难以一致的矛盾。本文介绍了一种复合离子型聚合物钻井液。其卡森流变三参数可有效调节,在搬含43g/L、钻井液密度1.18g/cm～3下,η_∞5.5～5.9mPa·s、τ_c2.4～6Pa、I_m450～921,I_m最高达到1310、实现了以往多元聚合物钻井液无法实现的流变性能。 At present, the existence of polymer drilling fluid η_∞ and τ_c, I_m can not be effectively adjusted between the rheological parameters and wellbore stability is difficult to control the inconsistency between the contradictions. This article describes a composite ion polymer drilling fluid. The three parameters of Karson rheology can be adjusted effectively. The highest η_∞5.5 ~ 5.9mPa · s, τ_c2.4 ~ 6Pa, I_m450 ~ 921 and I_m are the highest when the density of drilling fluid is 1.18g / cm ~ Reached 1310, to achieve the rheological properties of multi-polymer drilling fluid can not be achieved in the past.