Desander 2 : A hydrocyclone capable of removing a very high proportion of the API sand (particles greater than 74 microns) from a drilling fluid. (Bul 13C)
The Mudblogger (Oilfield, Energy and Related Photographs), Oil Field Glossary, TX, USA 2014. http://mudblogger.com/oilfield-glossary/, (Oil - Amer) {777}