US 12,010,970 B2
Nano-thermite well plug
David D. Hearn, Houston, TX (US); Casey Hirschmann, Houston, TX (US); and Randall S. Shafer, Houston, TX (US)
Assigned to CONOCOPHILLIPS COMPANY, Houston, TX (US)
Filed by ConocoPhillips Company, Houston, TX (US)
Filed on Sep. 22, 2022, as Appl. No. 17/934,202.
Application 17/934,202 is a division of application No. 17/075,897, filed on Oct. 21, 2020, granted, now 11,480,026.
Application 17/075,897 is a division of application No. 15/705,513, filed on Sep. 15, 2017, granted, now 10,871,050.
Claims priority of provisional application 62/402,810, filed on Sep. 30, 2016.
Prior Publication US 2023/0371454 A1, Nov. 23, 2023
Int. Cl. A01H 6/46 (2018.01); A01H 5/10 (2018.01); C09K 8/42 (2006.01); E21B 33/13 (2006.01)
CPC A01H 6/4684 (2018.05) [A01H 5/10 (2013.01); C09K 8/42 (2013.01); E21B 33/13 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A composition for plugging a wellbore, said composition comprising a first molten metal from nano-thermite clusters of <500 nm average diameter admixed with a second molten metal from wellbore production tubing and casing.