Sand control succeeds in high-rate, big-bore gas wells ///

A two-well, subsea tieback of the high-rate Echo-Yodel gas-condensate field was successfully drilled and completed offshore Australia in 2001 by operator Woodside Petroleum. Rock strength measurements, combined with sand failure modeling, indicated the likelihood of sand production and associated output deferment. Engineers selected expandable sand screens (ESSs) in horizontal holes as the preferred reservoir completion scheme. Frictional pressure drop at the high, planned off-take rates was a key factor. A big-bore casing scheme was selected, and considerable effort was put into developing and testing the sand control system with the supplier.

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