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. 23, 2011
Filed:
May. 21, 2009
Applicants:
Thomas Kruspe, Wietzendorf, DE;
Holger F. Thern, Hannover, DE;
Peter Rottengatter, Celle, DE;
Mouin Hamdan, Niedersachsen, DE;
Inventors:
Thomas Kruspe, Wietzendorf, DE;
Holger F. Thern, Hannover, DE;
Peter Rottengatter, Celle, DE;
Mouin Hamdan, Niedersachsen, DE;
Assignee:
Baker Hughes Incorporated, Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01V 3/00 (2006.01); G01R 33/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
NMR spin echo signals are acquired downhole. Principal Component Analysis is used to represent the signals by a weighted combination of the principal components and these weights are telemetered to the surface. At the surface, the NMR spin echo signals are recovered and inverted to give formation properties. Real-time displays may be used for determining formation properties and for altering the acquisition parameters.