National Oilwell, Inc.

National Oilwell Varco, L.p.

Jay D Furnish

James Cirone

Michael R Zemanek

Calvin Ronald Blankenship

James Cavitt Garrett

Jeff A Lambert

Donald W Johnson

Kenneth L Cambern

Joel M Ferland

James C Garrett

James R Cirone

Blaine A Allen

Calvin R Blankenship

The present disclosure, in one or more embodiments, relates to a well servicing rig having a mast having a racking board, a base supporting the mast, and a stabilization system configured to secure the rig against wind loading. The stabilization system may include a pair of front outriggers, a pair of rear outriggers, a pair of racking board supports coupled to the rear outriggers, and a pair of internal guylines extending between the racking board and the racking board supports.

Guyless rig with outriggers

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 the work platform at the desired height above the wellhead equipment. The preferred embodiment of the present invention utilizes a specialized automated 'pinning' system that secures the work platform at the desired height. Additionally, the present invention utilizes one or more support cylinders to position and support the work platform in the horizontal position over the wellhead equipment. The automated positioning and pinning system of the present invention is a unique system that significantly reduces the time required to position the work platform of a mobile workover rig in the operating position, as well as significantly reduces the risk of injury to rig personnel assisting in the positioning operations.

Automated system for positioning and supporting the work platform of a mobile workover and well-servicing rig

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Pampa, TX, United States of America

Jay D Furnish