US 12,319,870 B1
Activator for plain and foamed exothermic reaction in a wellbore
Ravikant S. Belakshe, Pune (IN); Sumit Ramesh Songire, Pune (IN); and Pratiksha Sharma, Pune (IN)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Nov. 21, 2023, as Appl. No. 18/516,852.
Int. Cl. C09K 8/524 (2006.01); E21B 37/06 (2006.01); E21B 47/00 (2012.01)
CPC C09K 8/524 (2013.01) [E21B 37/06 (2013.01); E21B 47/006 (2020.05)] 17 Claims
OG exemplary drawing
 
1. A method comprising:
forming an exothermic reaction mixture comprising sodium nitrite, an ammonium-based compound, and an activator, wherein the activator comprises an acid, wherein the acid is generated from a lactone, wherein the lactone is selected from a group consisting of gluconolactone, glucuronolactone, a phenol-based acid, and any combination thereof; and
providing the exothermic reaction mixture in a fluid flow path for initiating an exothermic reaction to at least partially remove damaging material from the fluid flow path.