Patent ID: 7806176
Filing Date: 2010-10-05
Classification: E21B

Abstract:
1. A tubular running tool comprising an elevation assembly integral and axially aligned with a make-up/torque assembly, wherein: said elevation assembly comprises a lifting collet adapted to automatically engage a lifting collar on an end of a tubular structure, said lifting collar being engaged by said lifting collet when said tubular structure advances longitudinally into said running tool a predetermined longitudinal distance; said make-up/torque assembly comprises at least one piston hydraulically actuable to advance radially inward relative to a longitudinal axis of said tool, causing said running tool to grasp said tubular structure with sufficient force as to permit said running tool to impart a torquing force upon said tubular structure; and wherein said at least one piston comprises a plurality of radially-oriented pistons disposed in radially-oriented piston cylinders formed in a body of said make-up/torque assembly.