Patent ID: 9068407
Filing Date: 2015-06-30
Classification: E21B,Y10T

Abstract:
1. A drilling assembly for drilling a subterranean wellbore, comprising: an expandable reamer comprising a first tubular body having a first longitudinal axis and a first drilling fluid flow path extending therethrough, a plurality of blades carried by the first tubular body, and a cutting structure carried by at least one blade of the plurality of blades, wherein at least one blade of the plurality of blades is outwardly movable from a retracted position to an extended position with respect to the first longitudinal axis responsive to a first electronic signal received by a first electrical device located in the first tubular body, and the first electrical device comprises a first processor; and an expandable stabilizer axially located a distance of about 25 feet or less above the expandable reamer in the drilling assembly, the expandable stabilizer comprising a second tubular body having a second longitudinal axis and a second drilling fluid flow path extending therethrough, a plurality of bearing pads carried by the second tubular body, wherein at least one bearing pad of the plurality of bearing pads is outwardly movable from a retracted position to an extended position with respect to the second longitudinal axis responsive to a second electronic signal received by a second electrical device located in the second tubular body, and the second electrical device comprises a second processor.