Dope 1 : A viscous material used on casing or tubing threads as a lubricant, and to prevent corrosion; a tar-base coating for pipelines to prevent corrosion. (ITOGP)
The Mudblogger (Oilfield, Energy and Related Photographs), Oil Field Glossary, TX, USA 2014. http://mudblogger.com/oilfield-glossary/, (Oil - Amer) {777}