Patent ID: 8955602
Filing Date: 2015-02-17
Classification: E21B

Abstract:
1. A drilling and tripping system, comprising: a) a plurality of lifting systems; b) a plurality of traveling differential roughnecks, each associated with at least one of said plurality of lifting systems; c) a pipe handling and storage system associated with at least one of said plurality of traveling differential roughnecks; d) a drilling fluid diverting system associated with at least one of said plurality of traveling differential roughnecks; and e) a control system; wherein the plurality of traveling differential roughnecks comprises a first traveling differential roughneck and a second traveling differential roughneck, and wherein said first traveling differential roughneck or said second traveling differential roughneck comprises: a rotating elevator bowl; a lower rotating torque wrench; an upper rotating torque wrench; a spinner; a mud bucket; and a fluid connection system.