US 12,351,755 B1
Breaker fluids for removal of polyolefin residue
Chetan Prakash, Pune (IN); Sarai Santos, Ciudad del Carmen (MX); Lalit Pandurang Salgaonkar, Pune (IN); Enrique Antonio Reyes, Houston, TX (US); Marisol Mendez, Ciudad del Carmen (MX); and Julio Estuardo Vasquez Estrada, Houston, TX (US)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Dec. 29, 2023, as Appl. No. 18/401,150.
Int. Cl. C09K 8/524 (2006.01)
CPC C09K 8/524 (2013.01) [C09K 2208/32 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A method for treating a wellbore in a subterranean formation using a breaker fluid, the method comprising:
providing the breaker fluid by combining an acid, an oxidizer, a corrosion inhibitor, a surfactant, an asphaltene remover, a sludging inhibitor, and an aqueous base fluid; wherein the acid is (i) an organic acid selected from the group consisting of acetic acid, methanesulfonic acid, propionic acid, p-toluenesulfonic acid, butanoic acid, derivatives thereof, and any combination thereof, or (ii) an inorganic acid selected from the group consisting of hydrochloric acid, hydrobromic acid, phosphoric acid, hydrofluoric acid, hypochlorous acid, chlorous acid, derivatives thereof, and any combination thereof; wherein the sludging inhibitor is selected from the group consisting of alkylbenzene sulfonate, alkylbenzene, or a combination thereof; wherein the breaker fluid comprises the acid in a concentration of 5% (w/v) to 15% (w/v);
introducing the breaker fluid into the wellbore; and
then contacting a surface contaminated with a polyolefin with the breaker fluid and thereby removing at least a portion of the polyolefin.