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:
Sep. 23, 2014

Filed:

Dec. 14, 2010
Applicants:

Roger L. Schultz, Ninnekah, OK (US);

Travis W. Cavender, Angleton, TX (US);

Inventors:

Roger L. Schultz, Ninnekah, OK (US);

Travis W. Cavender, Angleton, TX (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 43/12 (2006.01); E21B 43/24 (2006.01); E21B 43/00 (2006.01); E21B 34/00 (2006.01); E21B 43/32 (2006.01); E21B 43/14 (2006.01); F24J 3/08 (2006.01); E21B 34/08 (2006.01);
U.S. Cl.
CPC ...
E21B 43/32 (2013.01); E21B 43/14 (2013.01); F24J 3/085 (2013.01); E21B 34/08 (2013.01); Y02E 10/14 (2013.01); E21B 43/24 (2013.01);
Abstract

A method of geothermal energy production can include injecting water into a formation, and then automatically decreasing resistance to flow through at least one valve in response to the water changing phase in the formation. A geothermal well system can include a tubular string disposed in a production wellbore, the tubular string including at least one valve, water which flows from an injection wellbore into a formation surrounding the wellbore, and then flows from the formation into the production wellbore as steam, and resistance to flow through the valve decreasing automatically in response to presence of the steam in the production wellbore. Another method of geothermal energy production can include injecting water into a formation from an injection wellbore, the water changing phase in the formation, and then automatically decreasing resistance to fluid flow through at least one valve in response to presence of steam in a production wellbore.


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