Wells – Processes – Placing fluid into the formation
Patent
1995-12-07
1998-01-27
Neuder, William P.
Wells
Processes
Placing fluid into the formation
E21B 4326
Patent
active
057113769
ABSTRACT:
A process for fracturing a subterranean formation below an earthen surface in fluid communication with a wellbore. A foamed fracturing fluid comprising an aqueous solvent, a water-soluble synthetic polymer, a surfactant, and a gas is premixed at the surface. The aqueous solvent may be a fresh water or a brine. The fracturing fluid may additionally comprise a proppant, fluid loss additive, and/or a foam breaker. After the fluid is mixed and foamed, it is injected into the formation via the wellbore at a pressure sufficient to induce at least one hydraulic fracture in the formation.
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Ebel Jack E.
Hummel Jack L.
Marathon Oil Company
Neuder William P.
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