Patent ID: 11913319
Assignee: SAUDI ARABIAN OIL COMPANY
Field: Civil engineering (Other fields)
Classification: CPC E  C | IPC C  E

Claim 9:
10. The method of claim 9, wherein pumping the ammonium salts and the nitrite salt comprises pumping the nitrite salt through the wellbore into the subterranean
formation after conclusion of pumping the ammonium salts through the wellbore into the subterranean formation, and wherein pumping the ammonium salts and the nitrite salt into the subterranean formation and pumping the acid into the subterranean formation gives an in-situ aqueous mixture in the subterranean formation comprising the ammonium salt not having fluoride in a range of 10 weight percent (wt %) to 25 wt %, the ammonium salt having fluoride in a range of 1 wt % to 10 wt %, the nitrite salt in a range of 10 wt % to 25 wt %, and the acid in a range of 5 wt % to 20 wt %.