Subsidence Remediation - Extending Well Life through the Use of Solid Expandable Casing Systems

Loss of wells and / or production due to significant casing damage caused by formation subsidence can be a costly problem, particularly in shallow high porosity reservoirs. Solid Expandable Tubular (SET) Cased-hole Liners (CHL) is one method being utilized to overcome damage to casing due to formation subsidence. The techniques developed for this remediation solution could also be used to repair casing in a number of other environments. Subsidence has been reported in many fields throughout the world including the Ekofisk field in the Norwegian sector of the North Sea, the northern Adriatic, the Groningen gas field in the Netherlands, Lake Maracaibo in Venezuela and in several fields in both Long Beach and Bakersfield, California. 1 Subsidence can have dramatic