Well stimulation with micellar dispersions
Patent
·
OSTI ID:5611581
The injectivity index of injection wells is increased by injecting 1 to 500 gal of a micellar dispersion per vertical foot of oil-bearing formation followed by 1 to 500 gal of acid per vertical foot of oil-bearing formation. The micellar solution also tends to clean the oil-bearing sand, so that the acid can more effectively work on the formation. Water, e.g., 0.5 to 50 vol per volume of acid, can be injected after the micellar dispersion and before the acid. After the acid is injected, normal injection of water can be continued. (25 claims)
- Assignee:
- Marathon Oil Co.
- Patent Number(s):
- US 3568772
- OSTI ID:
- 5611581
- Country of Publication:
- United States
- Language:
- English
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