Methods for stimulating hydrocarbon production
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United States of America Patent
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Dec 7, 2004
Grant Date -
Mar 20, 2003
app pub date -
Jul 15, 2002
filing date -
Aug 14, 2001
priority date (Note) -
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Abstract
Methods are provided for stimulation of hydrocarbon production from low permeability formations by hydraulic fracturing, acid fracturing, and hydraulic fracturing followed by gravel packing in a single operation. The methods use a first injected viscous pad made with low concentration uncrosslinked polymer to initiate and propagate the fracture and control fluid loss, followed by a second injected fluid gelled with a viscoelastic surfactant for carrying proppant or acid into the fracture.
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