Blar i NTNU Open på forfatter "Kosberg, Birgitte"
-
Effect of Preconditioning and Ageing on Rheological Properties of Model Drilling Fluids
Werner, Benjamin; Lund, Bjørnar; Kosberg, Birgitte; Johansen, Espen; Giil, Gunnar Lia; Ytrehus, Jan David (Chapter, 2017)Many drilling fluids are thixotropic, meaning that viscosity decreases with time when subjected to shear. Other fluids may show anti-thixotropic (rheopectic) behavior, i.e. viscosity increase with time when subjected to ...