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Why Do Pore-Filling Gels Reduce k
w
Much More than k
o
?
PRRC Home
Research Groups
Reservoir Sweep Improvement
Pore-Filling Gels
Summary
Introduction
Fluids, Cores, and Flooding Procedures
Imbibition and Drainage before Gel Placement
Water Imbibition into Berea
Connectivity of Phases before Gel Placement
Gelant Injection
Oil and Water Flooding after Gel Placement
Water Drainage from Berea: Oil Injection Reduced Gel Volume.
Water Drainage from Berea
S
wr
in Berea Was Higher after Gel Placement than before
Water Imbibition into Berea: Oil Was Trapped
Oil Imbibition into Polyethylene: Reduction of Gel Volume Occurred Mainly in Small Pores.
Connectivity of Phases after Gel Placement.
Mechanistic Implications
Comparison with University of Kansas Work
Conclusions
Nomenclature
References