The formulation of the potassium sulfate drilling fluid is determined to fit for Putaohua and Fuyang production zone in Zhou 13 Block,Daqing Oilfield,and its property is also evaluated.

• 研究确立了一种适合于大庆油田州13区块葡萄花油层和扶杨油层钻井的硫酸钾钻井液的配方，并对其性能进行了评价。