Improved Oil Recovery by Waterflooding - University of Wyoming

Importance of Laboratory Coreflood
Tests on Reservoir for LSW
• For any positive LSW effect, tests on reservoir core show
substantial response (averaged at 14%) as opposed to low
response (0-9.6%) on tested outcrop core to date
• Single well chemical tracer tests showed 13% OOIP reduction
in residual oil, consistent with laboratory core test (McGuire et
al. 2005)
• A candidate North Sea field that met the necessary condition
for low salinity effect did not respond to LSW in either
laboratory or pilot test (Skrettingland et al. 2010)
• The correlation between laboratory coreflood test and field
test results confirms the need for individual laboratory tests for
screening low salinity candidate;
The variability in response demonstrates the value
of laboratory tests in screening candidate reservoirs
E N H A N C E D O I L R E C O V E R Y I N S T I T U T E