04470462 is referenced by 10 patents and cites 11 patents.

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 selected 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.

Title
Foam and particulate material with steam for permeability alteration in subsurface formations
Application Number
289550
Publication Number
4470462
Application Date
October 24, 1983
Publication Date
September 11, 1984
Inventor
Stanley O Hutchison
Bakersfield
CA, US
Agent
L S Gruber
E J Keeling
D A Newell
Assignee
Chevron Research Company
CA, US
IPC
E21B 43/24
E21B 33/138
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