Page 137 - Gas Wettability of Reservoir Rock Surfaces with Porous Media

CHAPTER 4
Effect of Gas Wettability on

the Surface Properties of

Rocks

121

ABSTRACT
Expound the gas adsorption capacity of rocks surface with different gas wettabil-
ity degrees, the influences of different wettabilities of clay mineral surface on the
Zeta potential, cation-exchange, expansion and dispersion characteristic of clay
mineral, the conductivity of rocks surface under the different conditions of liquid
wettability and gas wettability, and the degrees and laws of unidirection imbibi-
tion and reverse imbibition of the core with different gas wettability degrees;
reveal the influence of gas wettability on the rocks surface characteristic.

Outline
4.1 Gas Adsorption Capability of 4.2.4 Expansion
Rocks 122 Characteristic 145
4.1.1 Basic Theory of Gas 4.3 Conductivity of Rocks 148
Adsorption of Rocks 122 4.3.1 Core Electrical Resistance in
4.1.2 Experimental Studies on Gas Saturated Fluids 149
Adsorption Capacity of 4.3.2 Relationship Between Gas
Rocks 127 Saturation and Electrical
4.1.3 Quantum Chemistry Theory Resistance of Rocks 151
of Gas Adsorption Capacity 4.4 Imbibition Process of
of Rocks 131 Rocks 153
4.2 Expansion and Dispersion 4.4.1 Gas-wetting Alteration of
Characteristic of Clay Cores 154
Mineral 141 4.4.2 Unidirection Imbibition
4.2.1 Gas-wetting Alteration of Process of Cores 157
Montmorillonite 142 4.4.3 Reverse Imbibition Process
4.2.2 Zeta Potential 142 of Cores 160
4.2.3 Cation Exchange References 161
Capacity 143 Further Reading 162

Gas Wettability of Reservoir Rock Surfaces with Porous Media. DOI: https://doi.org/10.1016/B978-0-12-815150-1.00004-3
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