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:
Nov. 02, 2010
Filed:
May. 09, 2008
Applicants:
Andreas Hartmann, Niedersachsen, DE;
Christian Fulda, Lower Saxony, DE;
Dmitriy Dashevskiy, Nienhagen, DE;
Stephan Dankers, Wunstorf, DE;
Inventors:
Andreas Hartmann, Niedersachsen, DE;
Christian Fulda, Lower Saxony, DE;
Dmitriy Dashevskiy, Nienhagen, DE;
Stephan Dankers, Wunstorf, DE;
Assignee:
Baker Hughes Incorporated, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 44/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Borehole images obtained with MWD measurements have a mismatch with subsequent images obtained when measurements are repeated over the same depth interval after the drillstring has been raised up. The difference is attributable to stretch of the drillstring. This can be estimated by correlating the two images. The difference can also be estimated by monitoring drilling conditions such as RPM, WOB and torque on reentry.