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U.S. Department of Energy
Office of Scientific and Technical Information

Shutting off water in vertical fractures

Patent ·
OSTI ID:6896233
This is a method of vertical fracturing of oil and gas wells to increase oil production without proportionally increasing the water production. The method consists of passing into the fracture a mixture of a carrier fluid and a particle-form propping agent, followed by a particulate sealing material composed of a material different from the particle-form propping agent. The particle-form propping agent has a settling rate in the carrier fluid of at least 0.1 ft per min whereby the particles settle to form a pack in the fracture. The particulate sealing material is sufficient to seal openings between the deposited particles. Thereafter there is passed into the fracture a second mixture of a carrier fluid containing only a fracture- propping agent. (12 claims)
Assignee:
TUL; EDB-81-043532
Patent Number(s):
US 3241613
OSTI ID:
6896233
Country of Publication:
United States
Language:
English