Hydraulic fracturing process
Patent
·
OSTI ID:5071972
A process is described for hydraulically fracturing a permeable subterranean formation in which the fracture faces are treated to reduce their permeability to the fracturing fluid. Propping agent is placed in the fracture in a conventional manner whereby the bulk of the propping agent is deposited in the fracture at a location remote from the well. Thereafter the fracture faces are treated to restore their permeability to subsequently injected fluids. The propping agent is again injected into the fracture whereby the bulk of the propping agent is deposited in the fracture adjacent to the well. In this manner, fluid conductivity through the fracture is assured. (24 claims)
- Assignee:
- Union Oil Co. California
- Patent Number(s):
- US 3709300
- OSTI ID:
- 5071972
- Country of Publication:
- United States
- Language:
- English
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