Patent ID: 11939519
Assignee: SAUDI ARABIAN OIL COMPANY
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  E | IPC C  E

Claim 0:
1. A method, comprising:
disposing a scale inhibitor and an alkaline chemical in a water stream,
wherein:
the water stream comprises sulfate ions and cations of a divalent earth metal;
the alkaline chemical comprises at least one member selected from the group consisting of an inorganic salt, an organic salt and a metal oxide,
the scale inhibitor is disposed in the water stream at a first location along the water stream;
the alkaline chemical is disposed in the water stream at a second location along the water stream;
the second location is downstream of the first location;
downstream of the second location, a concentration of the alkaline chemical in the water stream is from 5 milligrams per liter (mg/L) to 500 mg/L; and
downstream of the first location, a concentration of the scale inhibitor in the water stream is from 5 ppm to 50 ppm.