Method for treating subterranean formations
Patent
·
OSTI ID:6572477
This patent describes a method for breaking a gelled oil fracturing fluid. It comprises injecting into a subterranean formation controlled release breaker capsules comprising an enclosure member enclosing a breaker for the gelled oil fracturing fluid; the enclosure member, being water-insoluble and oil-permeable, dissolving upon exposure to at least one fluid existing in the subterranean environment or injected with the controlled release breaker capsules such that the enclosure member is capable of releasing the breaker upon sufficient exposure to the fluid.
- Assignee:
- Dowell Schlumberger Inc., Tulsa, OK (USA)
- Patent Number(s):
- US 4919209; A
- Application Number:
- PPN: US s 7-297812
- OSTI ID:
- 6572477
- Country of Publication:
- United States
- Language:
- English
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