Compositions for acid treating subterranean formations
Patent
·
OSTI ID:5506880
This patent describes a high viscosity acid composition. It comprises: an aqueous acid solution; one or more acrylamide polymers dissolved in the acid solution in an amount sufficient to increase the viscosity of the acid solution; a liquid hydrocarbon dispersed in the acid solution; and one or more nonionic surface active agents having at least one reactive hydroxyl group per molecule present in the composition in an amount sufficient to interact with the acrylamide polymer or polymers in the presence of the liquid hydrocarbon whereby the viscosity of the acid solution is further increased and stabilized.
- Assignee:
- Phillips Petroleum Co., Bartlesville, OK (USA)
- Patent Number(s):
- US 4997582; A
- Application Number:
- PPN: US 7-335150
- OSTI ID:
- 5506880
- Resource Relation:
- Patent File Date: 7 Apr 1989
- Country of Publication:
- United States
- Language:
- English
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