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.:
Date of Patent:
Dec. 28, 2010
Filed:
Apr. 21, 2006
Harold J. Vinegar, Bellaire, TX (US);
Ronald Marshall Bass, Houston, TX (US);
Dong Sub Kim, Sugar Land, TX (US);
Stanley Leroy Mason, Allen, TX (US);
George Leo Stegemeier, Houston, TX (US);
Thomas Joseph Keltner, Spring, TX (US);
Frederick Gordon Carl, Jr., Houston, TX (US);
Harold J. Vinegar, Bellaire, TX (US);
Ronald Marshall Bass, Houston, TX (US);
Dong Sub Kim, Sugar Land, TX (US);
Stanley Leroy Mason, Allen, TX (US);
George Leo Stegemeier, Houston, TX (US);
Thomas Joseph Keltner, Spring, TX (US);
Frederick Gordon Carl, Jr., Houston, TX (US);
Shell Oil Company, Houston, TX (US);
Abstract
A system for heating a subsurface formation is described. The system includes a first elongated heater in a first opening in the formation. The first elongated heater includes an exposed metal section in a portion of the first opening. The portion is below a layer of the formation to be heated. The exposed metal section is exposed to the formation. A second elongated heater is in a second opening in the formation. The second opening connects to the first opening at or near the portion of the first opening below the layer to be heated. At least a portion of an exposed metal section of the second elongated heater is electrically coupled to at least a portion of the exposed metal section of the first elongated heater in the portion of the first opening below the layer to be heated.