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:
Jan. 15, 2013
Filed:
Aug. 17, 2009
James E. Chitwood, Spring, TX (US);
William Banning Vail, Iii, Bothell, WA (US);
Damir S. Skerl, Houston, TX (US);
Robert L. Dekle, Tulsa, OK (US);
William G. Crossland, Seattle, WA (US);
James E. Chitwood, Spring, TX (US);
William Banning Vail, III, Bothell, WA (US);
Damir S. Skerl, Houston, TX (US);
Robert L. Dekle, Tulsa, OK (US);
William G. Crossland, Seattle, WA (US);
Smart Drilling and Completion, Inc., Bothell, WA (US);
Abstract
Method and required apparatus to provide the closed-loop feedback control of a remote electric motor that has specific required operating parameters which is used to turn a rotary drill bit to drill a borehole in the earth that receives electrical energy through a long umbilical possessing insulated electrical conduits that includes the steps of measuring a set of electrical parameters with a multiplicity of sensors located near the electric motor, sending that measured information to a computer on the surface of the earth, comparing the measured information with the required operating parameters within the computer, adjusting an uphole power generator system to adjust its electrical output parameters to provide electrical energy to a portion of the umbilical located on the surface of the earth, repeating the measurements and adjustments to provide the closed-loop feedback control of the electric motor having specific required operating parameters.