The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 01, 2009
Filed:
Jul. 03, 2007
Melvin Alan Orr, Tulsa, OK (US);
Mark Trevithick, Houston, TX (US);
Christopher Alan Major, Tulsa, OK (US);
Robert Lee Stauder, Tulsa, OK (US);
Melvin Alan Orr, Tulsa, OK (US);
Mark Trevithick, Houston, TX (US);
Christopher Alan Major, Tulsa, OK (US);
Robert Lee Stauder, Tulsa, OK (US);
Helmerich & Payne, Inc., Tulsa, OK (US);
Abstract
A method and apparatus to move a modular drilling rig in formation wherein the drilling rig includes a plurality of self-propelled modules to facilitate the movement of the rig while all systems are intact and fully operational. The apparatus includes a plurality of wheel assemblies which are steerable to guide the modules during movement. The apparatus also includes a propulsion system for each of the modules to drive each of the modules during movement. A steering control and position feedback system is also provided for determining the relative position of each module with respect to the master module. This control and feedback system provides feedback to the steering control and feedback systems of other modules in order to move the modules in a formation.