Shear Strength 2 : A measure of the shear value of the fluid. The minimum shearing stress that will produce permanent deformation. See Gel Strength. (Bul D11)
The Mudblogger (Oilfield, Energy and Related Photographs), Oil Field Glossary, TX, USA 2014. http://mudblogger.com/oilfield-glossary/, (Oil - Amer) {777}