Foam and particulate material with steam for permeability alteration in subsurface formations

Patent · Tue Sep 11 00:00:00 EDT 1984

OSTI ID:6372456

Hutchison, S O

A method is disclosed for altering the permeability of a gravity override path through a subsurface earth formation resulting from hot fluid (steam) injection into the subsurface formation. The method includes adding sellected sized particulate material to a foam and injecting the foam into the gravity override path to deposit the particulate material thus altering the permeability in the path. The method may include the use of a noncondensible gas in the foam as well as a variety of combinations of the hot fluid injection and foam plus particulate material injection to maximize the sweep efficiency of the hot fluid injection into the subsurface formation.

• Assignee: Chevron Research Company
• Patent Number(s): US 4470462
• OSTI ID: 6372456
• Resource Relation: Patent File Date: Filed date 24 Oct 1983; Other Information: PAT-APPL-545015
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
03 NATURAL GAS
DISPLACEMENT FLUIDS
ADDITIVES
NATURAL GAS WELLS
STEAM INJECTION
OIL WELLS
ENHANCED RECOVERY
FOAMS
PARTICULATES
PERMEABILITY
RESERVOIR ROCK
SWEEP EFFICIENCY
COLLOIDS
DISPERSIONS
FLUID INJECTION
FLUIDS
PARTICLES
RECOVERY
THERMAL RECOVERY
WELLS
020300* - Petroleum- Drilling & Production
030900 - Natural Gas- Artificial Stimulation
Plowshare- (-1989)