Drilling & WellsVerified
EFO meaning in oil and gas
EFO means Extended Flange Outlet. An outlet that is welded to a tubing/casing head that brings the flange connection further away from the spool, usually for cleanance sake.
Definition
Extended Flange Outlet
An outlet that is welded to a tubing/casing head that brings the flange connection further away from the spool, usually for cleanance sake.