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| Number | Title | Issue Date |
| 7765749 | Fast moving drilling rig A method and apparatus for transporting and assembling a drilling rig is disclosed. The drilling rig of a preferred embodiment of the present invention utilizes specialized positioning pads integral to the side boxes of the drilling rig to facilitate the connection ... | 08/03/2010 |
| 7461700 | Apparatus and method for a C-plate used in a cable guided fishing assembly A C-plate assembly for use in a cable-guided fishing assembly is disclosed. The disclosed invention provides a C-plate assembly in which a closure member is slidable from an open position, which allows a wellbore tubular or other item to be positioned in the cut-out... | 12/09/2008 |
| 7455128 | Automated arm for positioning of drilling tools such as an iron roughneck The invention relates to an apparatus for moving an Iron Roughneck into position to allow making-up or breaking-out of threaded joints in a drill string. The apparatus may also be used to move other drilling equipment into position on the centerline of the well or a... | 11/25/2008 |
| 7345396 | Metallic laminations for magnetic circuits Metallic laminations for magnetic circuits. Some of the illustrative embodiments may be a magnetic circuit comprising a low reluctance magnetic flux path comprising a plurality of stacked metallic laminations (each lamination having an edge), and an air gap in opera... | 03/18/2008 |
| 7296640 | Solids control system A mobile solids control system for the processing of drilling fluids. The solids control system includes a suction tank skid, a suction platform skid, a shaker tank skid, and an equipment platform skid. The suction tank skid and shaker tank skid include the drilling... | 11/20/2007 |
| 7293618 | Power slip for drillpipe This invention relates to a mechanical apparatus for gripping and manipulating tubular members, such as drill pipe. The apparatus is essentially an automated slip puller, which generally comprises a slip base, a pulling mechanism pivotally attached to the slip base,... | 11/13/2007 |
| 7293607 | Automated system for positioning and supporting the work platform of a mobile workover and well-servicing rig A method and apparatus for positioning and supporting the work platform of a mobile workover rig is disclosed. The work platform of the preferred embodiment of the present invention utilizes a unique support structure and automated positioning system for positioning... | 11/13/2007 |
| 7249639 | Automated arm for positioning of drilling tools such as an iron roughneck The invention relates to an apparatus for moving an Iron Roughneck into position to allow making-up or breaking-out of threaded joints in a drill string. The apparatus may also be used to move other drilling equipment into position on the centerline of the well or a... | 07/31/2007 |
| 7246983 | Pipe racking system The pipe racking system is designed to handle drilling tubulars (primarily drill pipe and drill collars) between the racked or setback position and the well center. The racking system can mechanically grasp a stand of pipe, lift the pipe sufficient for free movement... | 07/24/2007 |
| 7234896 | Vertically folding service arm for a movable platform offshore drilling or servicing rig An apparatus and method for maintaining electrical and hydraulic connections between a junction box (or junction boxes) located on or near an offshore platform's floor and a movable drilling rig structure are disclosed. The disclosed invention is a unique vertically... | 06/26/2007 |
| 7231981 | Inline compensator for a floating drill rig An apparatus and method for protecting against the problems associated with heave of a floating drilling rig are disclosed. The disclosed invention is a unique inline compensator in which a plurality of cylinders housed within a tubular housing and a plurality of lo... | 06/19/2007 |
| 7228919 | Pivoting pipe handler for off-line make up of drill pipe joints An apparatus and method for use in the off-line make-up of drill pipe stands on drilling rigs used in the exploration and production of oil and gas reserves are disclosed. The disclosed invention is a pipe handling system in which a section of the V-door ramp attach... | 06/12/2007 |
| 7185881 | Electric winch Apparatus and methods for operating a winch system comprising a wire spooled onto a drum rotatably mounted to a shaft. A permanent magnet is mounted to the drum such that, when an electric current is applied to a coiled winding mounted to the shaft, the drum rotates... | 03/06/2007 |
| 7178612 | Automated arm for positioning of drilling tools such as an iron roughneck The invention relates to an apparatus for moving an Iron Roughneck into position to allow making-up or breaking-out of threaded joints in a drill string. The apparatus may also be used to move other drilling equipment into position on the centerline of the well or a... | 02/20/2007 |
| 7155873 | Structural connector for a drilling rig substructure A method and apparatus for connecting sections of a drilling rig substructure is disclosed. The disclosed invention is a unique structural connector in which sections of a drilling rig substructure can be connected together without the use of pins or pin-type connec... | 01/02/2007 |
| 6634436 | Mobile land drilling apparatus and method A mobile land rig and method are disclosed, for the transport, assembly, and disassembly of oil drilling equipment. A mobile telescoping substructure box includes at least one axle and coupled wheels lockable and releasable for engaging the ground and bei... | 10/21/2003 |
| 6182945 | Redundant drawworks A fully redundant drawworks is provided with two complete and totally independent systems for controlling and powering the drum and drum shaft of the drawworks. Each system broadly comprises at least one source of power (e.g., a motor or engine), a power ... | 02/06/2001 |
