Rig 3 : (n.) Drilling. The machine used to drill a wellbore. in onshore operations, the rig includes virtually everything except living quarters. Major components of the rig include the
Schlumberger Ltd. (The World's Leading Supplier Of Technology, Integrated Project Management And Information Solutions to Customers Working in The Oil and Gas Industry Worldwide), Schlumberger Oilfield Glossary Cedex, France 2014. http://www.glossary.oilfield.slb.com/en/Terms/sym/ a.aspx, (Ergo - Brit) {766}