A project in which existing 7-in. liners were tied back to surface then cemented stopped casing leaks in the Sarir and Messla oil fields in Libya. Many wells operated by Arabian Gulf Oil Co (AGOCO) in ...

Expandable-tubular technology advances as the industry extends its application from the drilling environment, where carbon-steel expandable tubulars reduce the telescopic effects of well construction, ...

Conductor casing Conductor casing is the first string set below the structural casing (i.e., drive pipe or marine conductor run to protect loose near-surface formations and to enable circulation of ...

Once a well has been drilled, if it is to become a production well, the well must undergo completion. While drilling a well cuts through the rock formations and allows drilling engineers to reach the ...

Heavier parent casing in increasingly deep waters has posed challenges for conventional expandable liner hangers. Jennifer Pallanich reports on a new metal-to-metal sealing system designed for such ...