Pipe Racking Board Guylines (Tubing Board Guylines) : Lines which run from racking board to ground anchors or special substructure or base which provide a substitute for ground anchors. (RP 54)
The Mudblogger (Oilfield, Energy and Related Photographs), Oil Field Glossary, TX, USA 2014. http://mudblogger.com/oilfield-glossary/, (Oil - Amer) {777}