Keywords Polyalcohol drilling fluid;Positive charged polyalcohol drilling fluid;Lubricity;Borehole stability;Prevention of formation damage;Basalt rock;Jidong Oilfield;

• 聚合醇钻井液;正电聚醇钻井液;润滑性;井眼稳定;防止地层损害;玄武岩;冀东油田;