Patent ID: 7267168
Filing Date: 2007-09-11
Classification: E21B

Abstract:
1. A pipe string load supporting spider for use on a drilling rig, the spider comprising: a) a body arranged for support on said drilling rig, the body having a generally central opening to accept vertically extending pipe, the opening comprising a slip bowl with a vertical centerline, the slip bowl having a generally conical surface opening upwardly; b) a plurality of slips peripherally distributed about said slip bowl, the slips having outer surfaces to mate with said conical surface and having individual abutment surfaces to support individual dies, each said die supported on said slip for vertical and radial movement therewith; c) a plurality of, vertically distributed, said dies supported on each said slip and arranged to grip an outer surface of pipe when said pipe is supported along said centerline; and d) each of said plurality of dies arranged to slide vertically on a guideway on said slip to rest on one of said individual abutment surfaces.