Patent ID: 11952533
Assignee: HALLIBURTON ENERGY SERVICES, INC.
Field: Basic materials chemistry (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A method of dissolving a filtercake within a wellbore comprising:
introducing to a wellbore a breaker solution comprising (i) an acid precursor, (ii) an accelerating agent wherein the accelerating agent comprises ZnSO4, or a hydrates thereof, and (iii) an aqueous fluid; and
contacting the filtercake with the breaker solution,
wherein contacting occurs in the wellbore at a temperature ranging from about 15° C. to about 120° C.; wherein the filtercake comprises calcium carbonate and wherein a rate of acid precursor hydrolysis is increased by from about 5 times to about 30 times the rate of acid precursor hydrolysis observed in the absence of an accelerating agent.