Gas recovery on the Bongkot field has increased by 5% and well costs h
ave decreased by 50% over a 4 year period. This was achieved by modify
ing the production strategy, and evolving well designs from classic mu
ltizone completions to tubingless monobore designs. Tubingless well de
signs have allowed a more aggressive perforating strategy, which taps
gas reserves that were previously lost Reduced consumable requirements
and elimination of completion operations have contributed to lower ov
erall well costs. This paper describes the process that led to the dev
elopment of the tubingless design.