(In offshore drilling) a pipe of large diameter extending from underneath the rotary table to the seabed, providing a casing for the drill in its passage through water and a means of returning and recirculating drilling fluid.
Origin
1940s; earliest use found in U.S. Patents.
Definition of well conductor in US English:
well conductor
noun
(In offshore drilling) a pipe of large diameter extending from underneath the rotary table to the seabed, providing a casing for the drill in its passage through water and a means of returning and recirculating drilling fluid.