Successful Installation of a Completion System for Gas Migration Prevention

Abstract

Completion systems are reviewed for gas migration prevention composed of an annular casing packer with remote-set technology activated by either a surface mounted acoustic wave generator or a downhole casing wiper plug (CWP) with a magnetic array. Proven and reliable zero-extrusion gap element technology provides a gastight annular seal while reliability is enhanced by eliminating all communication ports and potential leak paths between the packer's ID and casing annulus. Design and qualification of these systems will be discussed along with successful field installations in 18⅝-in. x 24-in. casing strings in Sakhalin Island offshore wells.