A fabricated length of tubular pipe equipped with a packoff and bleed valve that is installed to provide access while working on a well under pressure with wireline or other tools and equipment.
Source: API RP 54, Recommended Practice for Occupational Safety for Oil and Gas Well Drilling and Servicing Operations, Third Edition, August 1999 (2007). Global Standards
A device mounted on the wellhead used to introduce tool strings, chemicals, instruments and perforating guns into a well under pressure.
Source: API RP 67, Recommended Practice for Oilfield Explosives Safety, Upstream Segment, Second Edition, May 2007. Global Standards
“Lubricator” sometimes called a bottle, means a special length of casing or tubing placed temporarily above a valve on the top of the casing or tubing head used to run tools or substances into a producing well without having to kill it. [Mich. Admin. Code R 408 (2013)].
Source: Oil and Gas Drilling and Servicing Operations, Michigan Administrative Code R 408, February 8, 2013. Regulations