Gel Cement 2 : Cement having a small to moderate percentage of bentonite added as a filler an/or to reduce the slurry weight. See: Gunk Plug. (Bul D11)
The Mudblogger (Oilfield, Energy and Related Photographs), Oil Field Glossary, TX, USA 2014. http://mudblogger.com/oilfield-glossary/, (Oil - Amer) {777}