Xm. Zhou et al., THE EFFECT OF CRUDE-OIL AGING TIME AND TEMPERATURE ON THE RATE OF WATER IMBIBITION AND LONG-TERM RECOVERY BY IMBIBITION, SPE formation evaluation, 10(4), 1995, pp. 259-265
We investigated short-term rates of imbibition of water and long-term
recovery by spontaneous imbibition for crude oil/brine/rock systems. I
ncreasing the aging time and aging temperature decreased the early tim
e rate of imbibition of water. Moderately water-wet plugs gave the hig
hest recovery by long-term imbibition. We present photographic records
of oil production at core surfaces, which are indicative of conectivi
ty and capillary-pressure driving forces for imbibition.