Page 272 - Gas Wettability of Reservoir Rock Surfaces with Porous Media

256 Index

Bubble capture method (Continued) Centrifuging, optimization with, 220 Consequent imbibitions.
n-octane liquid drop and air Cetyltrimethylammonium See Unidirection imbibition
bubble on solid surface, 66f bromide, 16 Contact angle (CA), 2, 2f, 5, 20,
surface energy of measuring CH 4 adsorbtion capacity on gas- 30 32
fluids, 67t wetting quartz sand, equation, 41
surface roughness effects, 79 129 130, 130t gas wettability evaluation by,
Butyl acrylate (BA), 200 CH 4 molecules, wettability models 44 45
adsorbing, 135, 135t, 136f experimental method, 44
C Chemical adsorption, 122, 122t experimental result and
CA. See Contact angle (CA) Chemical bath deposition (CBD), discussion, 44 45
Ca 21 effect on gas wettability 21 22 measurement of liquid
alteration, 90, 90t Chemical cleaning, 211 on core Khotan No.4, 107t
CaCl 2 salinity effects, 9 Chemical displacement of hydrogen on core P27, 107t
Calculation method selection, nucleus, 102, 102f on core PJ2, 107t
132 133 Chemical methods, 20 21 method, 40
Capillarimetric method, 37 38, 38f Chemical vapor deposition method types, 31
Capillary action force, 145 (CVD), 22 23 uncertainty of contact angle
Capillary effect, 196 China, research status of gas method, 31 32
Capillary force method, 13, 49 50, wettability in, 10 19 Continuous-flow chromatography,
168, 179 Chlorine, 86 123 124, 124f
evaluating gas wettability Chunliang oil plant, effect on Core displacement characteristic
experimental method, 41 experimental well in, 229, 229t effect, 189 191
experimental result and Circle fitting model, 56 57 Core electrical resistance in saturated
discussion, 41 44 Clay mineral fluids, 149 151
rise method, 40 CEC, 143 145 effect of fluids with different
Capillary pressure, 197, 199 expansion and dispersion saturations on electrical
curves, 7 characteristic, 141 148 resistance of water-wet cores,
effects of wettability on, 217 gas-wetting alteration of 149 150, 150f
threshold, 7 montmorillonite, 142 experimental procedure, 149
Capillary rise zeta potential, 142 143, 143f effect of wettability on electrical
of fluorine-containing Cleaning drilling cuttings method, 231 resistance of saturated
amphiphilic polymer, Cloud test, 240 formation water, 150 151
108 109, 108f, 109f CO 2 molecules, models with electrical resistance of cores
method, 16 different wettability with different wettabilities,
Carbon dimethylamine adsorbing, 137 138, 138f 151
hydrochloride (EDC-HCl), 94 Colloidal chemistry experiments, 24 experimental procedure,
Cation-exchange capacity (CEC), Colloidal Chemistry Foundation,5 150 151
142 145 Colloidal silica, 22 Core flow
of rocks and influencing factors, Composition of rocks, 143 experimental method, 221
143 144 “Concave structures”,19 20 test, 15
acidic and alkaline Conductivity of rocks, 148 153 tester, 224
environments, 144 core electrical resistance in Core gas wettability alteration
composition of rocks, 143 saturated fluids, 149 151 mechanism
specific surface area of rocks, parameters of artificial sandstone experimental study of, 109 113
144 cores, 149t change in core surface energy,
test, 144 145 relationship between gas 112f
Cationic fluoride, 18 saturation and electrical wettability of core surfaces, 112f
CBD. See Chemical bath deposition resistance of rocks, 151 153 XPS of quartz glass slide after
(CBD) comparison of conductivity of adsorption equilibrium, 113f
C C chain, 136 137 cores with wettabilities, 153, quantum chemistry research,
CEC. See Cation-exchange capacity 153t 113 118
(CEC) electrical resistance of cores Core permeability effect, 185 189
Centrifugal separation technology, under different saturations, displacement experiment,
231 151 152 185 188