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

Claim 6:
7. The method of claim 3, comprising removing organic deposits from the sandstone formation via the heat as generated and the acid, 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 %.