A Big-Bore HTHP drilling and completion program of sevenwells was undertaken under challenging conditions in a lowpressure carbonate reef in Indonesia. Significantenhancements made during the program substantially reducedwell times and cost. These wells incorporated the largesttubingless gas completions in the world. Higher thananticipated initial flow rates were achieved through aninnovative strategy to decrease formation damage. The wellswere completed open-hole without pumping kill weight fluidsat the end of underbalanced drilling operations. These wellsare the first to combine Big-Bore completions, drill-in linersand underbalanced drilling in individual wellbores.
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