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. 16, 2003
Filed:
Jun. 20, 2002
Applicant:
Inventor:
Homer L. Spencer, Calgary, Alberta, CA;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 6/10 ;
U.S. Cl.
CPC ...
H05B 6/10 ;
Abstract
Apparatus and method for melting material in any one or a plurality of casings of an oil or gas well and thereby sealing the annulus to prevent gas leakage and the like. The material is positioned within any of the annuluses between the production and surface casing of the well and above the well cement between the casings of interest. A heating tool is lowered into position and provides the necessary heat to melt the material. The heating tool may be removed following the sealing of the annulus.