Page 266 - Enhanced Oil Recovery in Shale and Tight Reservoirs

EOR mechanisms of wettability alteration and its comparison with IFT 247

% (Continued)
RF, 24.3 18.9 32.6 47.3 7.6 6.5 4.5 5.8 9 2.1 2017)

2018) 2018)
psi
p c , al., et al., Schechter,
Final (Alvarez 16 35 149 406 2 et (Alvarez 20 30 63 236 12 and

cores. angle 3%) 4%) (Alvarez

different contact pyrite pyrite 7%)

on Final 4%, 45.6 47.4 48.7 38.1 89.9 3%, 47.2 53.4 48.3 34.3 89.5 pyrite 7%,
surfactants feldspar 19%, feldspar 1%, feldspar 62

different mN/m IFT, dolomiate 0.4 0.9 3.9 8.9 21.8 dolomiate 0.7 1.2 2.3 6.9 34.4 2%, 9.8

of A, dolomite
alteration 46%, calcite proprietary sulfonate ethoxylated citrus alcohol, ammonia 40%, calcite Wolfcamp Wolfcamp Wolfcamp Wolfcamp 4%,

wettability components 15%, alcohol, alcohol, B, alcohol, proprietary alcohol, citrus 35%, above above above above calcite 40%, alcohol

and Surfactant clays 13%, Methyl sulfonate Methyl sulfonate alcohol Isopropyl terpenes, Isopropyl ethoxylated quaternary compound, terpenes clays 17%, as Same as Same as Same as Same clays Branched oxyalkylate
reduction (quartz (quartz 40%,

IFT (quartz
of cores 1 Anionic/nonionic 2 cores 1 Anionic/nonionic 2 cores
Capabilities Surfactant carbonate Anionic Anionic Cationic Water carbonate Anionic Anionic Cationic Water siliceous Nonionic

9.4 ford
Table Core Wolfcamp 1 2 3 4 5 Eagle 6 7 8 9 10 Wolfcamp