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:
May. 25, 2010
Filed:
Mar. 10, 2006
Sven Krueger, Celle, DE;
Volker Krueger, Celle, DE;
Harald Grimmer, Lachendorf, DE;
Roger W. Fincher, Conroe, TX (US);
Larry A. Watkins, Houston, TX (US);
Peter Aronstam, Houston, TX (US);
Peter Fontana, The Woodlands, TX (US);
Sven Krueger, Celle, DE;
Volker Krueger, Celle, DE;
Harald Grimmer, Lachendorf, DE;
Roger W. Fincher, Conroe, TX (US);
Larry A. Watkins, Houston, TX (US);
Peter Aronstam, Houston, TX (US);
Peter Fontana, The Woodlands, TX (US);
Baker Hughes Incorporated, Houston, TX (US);
Abstract
Methods and control systems are provided for a wellbore drilling system having an active differential pressure device (APD device) in fluid communication with a returning fluid. The APD Device creates a differential pressure across the device, which reduces the pressure below or downhole of the device. In embodiments, a control unit controls the APD Device in real time via a data transmission system. In one arrangement, the data transmission system includes data links formed by conductors associated with the drill string. The conductors, which may include electrical wires and/or fiber optic bundles, couple the control unit to the APD Device and other downhole tools such as sensors. In other arrangements, the data link can include data transmission stations that use acoustic, EM, and/or RF signals to transfer data. In still other embodiments, a mud pulse telemetry system can be used in transfer data and command signals.