Page 281 - Gas Wettability of Reservoir Rock Surfaces with Porous Media

Index 265

damage caused by water-block Water-wet, 30 31 by alkane with different carbon
mechanism, 197 fluids effect with different chain lengths, 81
effects, 196 saturations on electrical by NaCl solutions, 80 81
water-blocking effect, 170 resistance of water-wet cores,
water-phase, 111 149 150, 150f X
water-soluble surfactant, 3 4 experimental procedure, 149 X-ray diffractometer, antiswelling
water gas rock system, 158 rock, 5 agent with, 219
wettability influence on water water-wetting quartz sand, 129 X-ray photoelectron spectroscopy
seepage, 12 Waxing, 178 (XPS), 95 96, 96f, 102 103,
Water-displacing-gas, 168 Wettability, 1 2, 24, 59, 180 104f, 113
in capillaries, 164 168 alternation agent LW-1, 11 12
experiment, 166 167 measurement, 235 Y
experiment material and measurement of micromodel, 180 Yan Jienian’s research with natural
apparatus, 166 models, 133 134 cores, 217 218
experiment method, 166 167 adsorbing CH 4 molecules, 135, Yong’s equation, 66
experiment theory, 164 166 135t, 136f
evaluation of gas wettability in gas-wetting rocks models, 134, Z
single-straight capillaries, 164 134f
front shape and capillary force liquid wetting rock models, Zero damage, 195, 210
of, 165f 133, 133f Zeta potential, 142 143, 143f
water displacement experiment, of reservoir rocks and effect Zisman’s theory, 54, 64 65, 76
165 166 factors, 2 4 Zonyl8740 fluoropolymer, 77
front, 181 contact angle through liquid cationoid fluoropolymer, 52
gas wettability evaluation of droplets, 2f concentration, 52 53
straight capillary wall surface, two selective isotherms, 4f change rule of liquid contact
167, 167f types of wettability, 3f angle with variation, 53f
process, 164 167 treatment of micromodel, 180 relationship between gas
in single-straight capillaries, 169 Wetting situation of gas-wetting rock wetting angle and, 57t
water-displacing-gas in straight sample surfaces, 80 82 solution concentration, 58
capillaries, 168, 168f by alcoholic solutions, 81 82 water solution, 52 53