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:
Aug. 18, 2009
Filed:
Feb. 14, 2007
Applicants:
Jiang LI, Katy, TX (US);
Hanno Reckmann, Nienhagen, DE;
Inventors:
Jiang Li, Katy, TX (US);
Hanno Reckmann, Nienhagen, DE;
Assignee:
Baker Hughes Incorporated, Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01V 1/40 (2006.01);
U.S. Cl.
CPC ...
Abstract
Pump noise in a mud-pulse telemetry system is reduced based on analysis of the frequency characteristics of the noise generated by one or more pumps. Least mean-squares filtering may be done. Alternatively, the frequency domain analysis of the pump frequencies is fine-tuned in the time domain and a synthetic timing signal is used for the filtering.
Li, Jiang. (2009). System and method for pump noise cancellation in mud pulse telemetry (U.S. Patent No. 7577528). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7577528
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile