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 8418465 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 16, 2013

Filed:

Jul. 23, 2010
Applicant:

David Murray Munson, Jr., Dallas, TX (US);

Inventor:

David Murray Munson, Jr., Dallas, TX (US);

Assignee:

FOI Group, LLC, Dallas, TX (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F03G 7/00 (2006.01); F01K 27/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

This invention uses an innovative closed-loop steam cycle with a primary geothermal boiler and a recirculating arrangement to deliver a portion of the enthalpy of that produced steam as a higher temperature and pressure steam to the surface. The geothermal boiler operates at as low a pressure as needed to boil water using heat from relatively low-temperature geologic formations typically found in abandoned oil wells. This system can be deployed in such well bores to extract geothermal energy either as a stand-alone enterprise or in conjunction with tertiary oil recovery efforts. The geothermally-boiled steam provides most or all of the energy to power the process. It is the ability of this system to extract useful heat from below atmospheric boiling temperature heat sources that offers its greatest potential.


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