Beyond the Limits of Drilling and Completion—Expandables

Abstract

TX 75083-3836, U.S.A., fax 1.972.952.9435. AbstractDrilling trouble zones has haunted drilling operations experts through the years. Conventional methods for mitigating formation problems encountered during the drilling phase of a well, such as unstable formations, overpressured formations, and loss zones, are often costly and ineffective. Age-old methods of simply setting a casing and drilling ahead with a different mud weight and a smaller hole size are becoming increasingly unacceptable as the industry strives to reach deeper reserves.