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Well sealing via thermite reactions

United States Patent

9,494,011
November 15, 2016
View the Complete Patent at the US Patent & Trademark Office
A platform is formed in a well below a target plug zone by lowering a thermite reaction charge into the well and igniting it, whereby the products of the reaction are allowed to cool and expand to form a platform or support in the well. A main thermite reaction charge is placed above the platform and ignited to form a main sealing plug for the well. In some embodiments an upper plug is formed by igniting an upper thermite reaction charge above the main thermite reaction charge. The upper plug confines the products of ignition of the main thermite reaction charge.
Lowry; William Edward (Port Townsend, WA), Dunn; Sandra Dalvit (Santa Fe, NM)
Olympic Research, Inc. (Port Townsend, WA)
15/ 205,176
July 8, 2016
This Invention was made with U.S. Government support under Contract No. DE-SC0010135 awarded by the Department of Energy. The Government has certain rights in this invention.