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.

Date of Patent:
Apr. 24, 2018

Filed:

Jan. 31, 2013
Applicants:

Stefan Wessling, Hannover, DE;

Jianyong Pei, Katy, TX (US);

Roland May, Celle, DE;

Andreas Hartmann, Celle, DE;

Thomas Dahl, Schwuelper, DE;

Inventors:

Stefan Wessling, Hannover, DE;

Jianyong Pei, Katy, TX (US);

Roland May, Celle, DE;

Andreas Hartmann, Celle, DE;

Thomas Dahl, Schwuelper, DE;

Assignee:

BAKER HUGHES, LLC, Houston, TX (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 47/06 (2012.01);
U.S. Cl.
CPC ...
E21B 47/06 (2013.01);
Abstract

A method for estimating a time at which a pressure window relevant observation occurred relating to an event that occurred in an open borehole penetrating an earth formation includes: receiving with a processor a pressure window relevant observation that provides input to adjusting a pressure window for drilling fluid for drilling the borehole; and estimating with the processor a time window in which a physical parameter, a chemical parameter, or a process that caused the pressure window relevant observation to occur, the time window having a start time and an end time.


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