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.:

US 9228401 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 05, 2016

Filed:

Sep. 15, 2009
Applicants:

Stephen T. Edwards, Hockley, TX (US);

Christopher J. Coley, London, GB;

Michael L. Edwards, Houston, TX (US);

Donald F. Shafer, Austin, TX (US);

Mark W. Alberty, Houston, TX (US);

Inventors:

Stephen T. Edwards, Hockley, TX (US);

Christopher J. Coley, London, GB;

Michael L. Edwards, Houston, TX (US);

Donald F. Shafer, Austin, TX (US);

Mark W. Alberty, Houston, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 47/003 (2012.01); E21B 47/08 (2012.01); E21B 21/08 (2006.01); E21B 33/16 (2006.01); E21B 47/00 (2012.01);
U.S. Cl.
CPC ...
E21B 21/08 (2013.01); E21B 33/16 (2013.01); E21B 47/0003 (2013.01); E21B 47/08 (2013.01);
Abstract

Borehole conditions can be determined using distributed measurement data. Real time data measurements can be taken from sensors distributed along the length of a drill string to assess various conditions or properties of the borehole. In particular, the distributed data can be used for example, to track the progress of a chemical pill or also track the location of different types of borehole fluids, and also to determine the hole size or volume of the borehole.


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