METHODOLOGY FOR SELECTING PDC BITS CUTS DRILLING COSTS
Charles Wampler Enron Oil & Gas Co. Corpus Christi, Tex. Kent Myhre Eastman Christensen Houston A bit-selection methodology proved effective for choosing polycrystalline-diamond-compact (PDC) drill bits in Zapata and Webb counties of South Texas. This program reduced drilling days per well up to 50% compared to wells drilled just 10 years ago. This decrease in drilling and tripping time has typically saved more than 30% of authority for expenditure (AFE) dry hole costs.