Statoil Tests New Liner Drilling Technology in North Sea

摘要

A new method which simplifies drilling operations in unstable formations and thereby saves time and costs has been tested by Statoil on the Brage field. This "liner drilling" solution makes it possible to operate with a well liner attached directly to a steerable drill-string, and represents a global innovation. In conventional drilling, work has to halt while the string is pulled from the well and a liner set to prevent the borehole walls from collapsing.