Casing types

Production string The Production string is a string which is installed to separate productive zones…

Surface string The purpose of the surface string is to provides blowout protection during drilling.…

Conductor string Conductor string is a string which is installed to cover unconsolidated formations, to…

Liner A liner (other than slotted liners) is a string of casing which does not…

Intermediate string The intermediate string is a string which is used to isolate weak formations,…

Stove pipe, marine conductor or foundation pile The purpose of Stove pipe, marine conductor or…