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:
Nov. 06, 2007
Filed:
Aug. 20, 2004
Louis J. Wardlaw, Houston, TX (US);
Jack Michael Fraelick, Alvin, TX (US);
Manuel Eduardo Gonzalez, Kingwood, TX (US);
Robert B. Carpenter, Sugar Land, TX (US);
Louis J. Wardlaw, Houston, TX (US);
Jack Michael Fraelick, Alvin, TX (US);
Manuel Eduardo Gonzalez, Kingwood, TX (US);
Robert B. Carpenter, Sugar Land, TX (US);
Cinaruco International S.A. Calle Aguilino de la Guardia, Panama I, PA;
Abstract
A secondary plugging tool is disclosed for use in a subterranean plug, such as in a plugged and/or abandoned well. The repaired plug may be of a cementicious material, or a mechanically, hydraulically or electrically set plug or packer. The plugging tool includes an outer housing containing an eutectic metal alloy. A thermitic reaction charge is contained within chambers within an inner tubular member and a lower housing. The lower end of the outer housing being ported circumferentially there around, the thermitic reaction charge activates the eutectic metal charge such that the eutectic charge melts and pours out of the outer housing and across and upon the initial plug to repair any failure areas therein.