Patent ID: 9096282
Filing Date: 2015-08-04
Classification: B62D,E21B

Abstract:
1. A rig, comprising: a base structure in contact with an operating surface and configured to support the rig on the operating surface; a raised platform connected to the base structure by a plurality of support beams, wherein a first portion of the base structure extends laterally outside of the raised platform towards a rear end of the rig, and wherein a second portion of the base structure extends in contact with the operating surface from directly below a first end of the raised platform located towards the rear end of the rig to directly below a second end of the raised platform located towards a front end of the rig, opposite the rear end of the rig; a transportation system operatively coupled to the base structure, wherein the transportation system comprises a first transport device located towards the rear end of the rig and configured to lift the rear end of the rig and a second transport device located towards a front end of the rig and configured to lift the front end of the rig, wherein the second transport device is located in front of the second portion of the base structure, and wherein the transportation system is configured to position the rig over an extraction point; a hoisting device connected to the raised platform; a rear platform attached to the second portion of the base structure, wherein at least a portion of the rear platform is located above the base structure; and a drawworks mounted on the rear platform and operatively connected to the hoisting device, wherein the rear platform is configured to provide a clearance between the drawworks and a well head located above the extraction point.