IMPROVED COMPLETION SYSTEM

摘要

An expandable completion system and method of completing a well in which gravel packing of multiple completion zones is achieved by morphing a sleeve across a gravel packed annulus to secure it to a well bore wall by the use of fluid pressure to provide a zonal isolation barrier between two gravel packed zones in a wellbore. An embodiment provides gravel packing for multiple completion zones by circulation. A further embodiment allows selective isolation barriers to be created along the length of the completion string after the gravel has been pumped into the annulus.