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:
Sep. 19, 2006
Filed:
Dec. 31, 2004
Applicant:
George Boyadjieff, Villa Park, CA (US);
Inventor:
George Boyadjieff, Villa Park, CA (US);
Assignee:
Varco I/P, Inc., Orange, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 47/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
An oil and gas well drilling system is provided that includes a torque drive system having an output shaft and a drill string rotated by the torque drive system. An instrumented internal blowout preventer valve is connected between the torque drive system output shaft and the drill string. The valve includes a valve housing, and one or more measurement devices mounted to the valve housing for measuring desired drill string drilling parameters during an oil and gas well drilling operation.