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US 2020/0399528 A1Published application
Stabilized foams with tailored water chemistry for mobility control in gas injection processes
AssigneeSaudi Arabian Oil Company
InventorsZuhair AlYousif, Subhash Ayirala, Mustafa Alkhowaildi
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Abstract
The application discloses foam compositions, methods to produce foam compositions, and methods to increase hydrocarbon production by displacing a hydrocarbon product with a foam composition. The foam composition includes an aqueous phase that typically includes an amphoteric surfactant and inorganic ions.
Claims9
1-20. (canceled)
A foam composition, comprising an aqueous liquid and pockets of gas within the aqueous liquid, in which:
- the aqueous liquid comprises inorganic ions at a total concentration of 1 g/L to 9 g/L;
- the aqueous liquid comprises amphoteric surfactants at a total concentration of 100 mg/L to 10 g/L;
- the aqueous liquid comprises total dissolved solids at a concentration of 2 g/L to 20 g/L;
- and
- the density of the foam at atmospheric pressure is 100 g/L to 750 g/L.
2 more elements
Dependencies are inferred from the claim text.