Casing types definitions
This article presents the definition of the various casing types: conductor, surface casing, intermediate casing, production casing and liner.
Marine Conductor (Offshore)
This is for offshore drilling operations from jack-up rigs. It consists of a pipe driven, jetted, or cemented in a pre-drilled hole to provide structural strength, to cover very soft formations below the seabed, to serve as a circulation system for the drilling fluids, and to guide the drilling and casing strings into the hole.
Conductor Casing String (Onshore)
The conductor casing string is used to cover unconsolidated . . .