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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 8881843 B1

PDFFull Text
Date of Patent:
Nov. 11, 2014

Filed:

Feb. 09, 2007

Managed pressure and/or temperature drilling system and method

Applicants:

Richard J. Todd, Houston, TX (US);

Don M. Hannegan, Fort Smith, AR (US);

Simon J. Harrall, Houston, TX (US);

Inventors:

Richard J. Todd, Houston, TX (US);

Don M. Hannegan, Fort Smith, AR (US);

Simon J. Harrall, Houston, TX (US);

Assignee:

Weatherford/Lamb, Inc., Houston, TX (US);

Attorney:

Patterson & Sheridan, L.L.P.

Primary Examiner:

James Sayre

Int. Cl.
CPC ...
E21B 7/00 (2006.01); E21B 7/06 (2006.01); E21B 23/00 (2006.01); E21B 47/06 (2012.01); E21B 47/00 (2012.01); E21B 29/06 (2006.01); E21B 43/11 (2006.01); E21B 33/12 (2006.01); E21B 7/12 (2006.01); E21B 17/01 (2006.01); E21B 21/06 (2006.01); E21B 43/10 (2006.01); E21B 21/08 (2006.01); E21B 21/10 (2006.01); E21B 19/00 (2006.01); E21B 33/035 (2006.01); E21B 21/01 (2006.01); E21B 47/12 (2012.01); E21B 36/00 (2006.01); E21B 21/12 (2006.01); E21B 21/00 (2006.01); E21B 43/01 (2006.01);
U.S. Cl.
CPC ...
E21B 47/065 (2013.01); E21B 17/01 (2013.01); E21B 2021/006 (2013.01); E21B 21/067 (2013.01); E21B 43/103 (2013.01); E21B 21/08 (2013.01); E21B 21/10 (2013.01); E21B 19/002 (2013.01); E21B 47/06 (2013.01); E21B 21/063 (2013.01); E21B 33/0355 (2013.01); E21B 21/01 (2013.01); E21B 21/065 (2013.01); E21B 33/035 (2013.01); E21B 47/123 (2013.01); E21B 36/003 (2013.01); E21B 36/00 (2013.01); E21B 36/001 (2013.01); E21B 47/122 (2013.01); E21B 2043/0115 (2013.01); E21B 21/12 (2013.01); E21B 47/12 (2013.01);
Abstract

The present invention relates to a managed pressure and/or temperature drilling system () and method. In one embodiment, a method for drilling a wellbore into a gas hydrates formation is disclosed. The method includes drilling the wellbore into the gas hydrates formation; returning gas hydrates cuttings to a surface of the wellbore and/or a drilling rig while controlling a temperature and/or a pressure of the cuttings to prevent or control disassociation of the hydrates cuttings.

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