Page 45 - Gas Wettability of Reservoir Rock Surfaces with Porous Media

CHAPTER 2
Evaluation Methods and

Influencing Factors of Gas

Wettability

29

ABSTRACT
Introduce ten traditional mature evaluation methods of wettability of the solid
surface in the oil/water/solid system systematically; the advantages and disad-
vantages of gas wettability evaluation by using the frequently used capillary
force rise method, contact angle method, and Washburn method; for the fea-
tures of gas wettability, establish the sessile drop method and the bubble cap-
ture method for evaluating the wettability of the solid surface in gas/liquid/
solid, and discuss the factors and laws influencing the gas wettability

Outline
2.1 Traditional Wettability Evaluation 2.2.3 Evaluating Gas Wettability by
Methods 30 Washburn Method 46
2.1.1 Contact Angle 30 2.3 Establishing Gas Wettability
2.1.2 Amott Method 32 Evaluation Method 50
2.1.3 USBM Method 34 2.3.1 Sessile Drop Method 50
2.1.4 Relative Permeability 2.3.2 Bubble Capture Method 54
Curves Method 35 2.3.3 Experimental Verification of
2.1.5 Microscopic Gas Wettability Evaluation
Examination 36 Method 58
2.1.6 Flotation 36 2.4 Factors Influencing Gas
2.1.7 Capillarimetric Method 37 Wettability 59
2.1.8 Imbibition Rates 38 2.4.1 Process and Essence of Gas
2.1.9 NMR-Relaxation 39 Wettability 59
2.1.10 Dye Adsorption 40 2.4.2 Effect of Surface (Interface)
2.2 Evaluating Gas Wettability Using Free Energy on Gas
Traditional Methods 40 Wettability 62
2.2.1 Evaluating Gas Wettability by 2.4.3 Effect of the Nature of
Capillary Force Method 41 Measuring Matrix on Gas
2.2.2 Evaluation of Gas Wettability Wettability 74
by Contact Angle 44

Gas Wettability of Reservoir Rock Surfaces with Porous Media. DOI: https://doi.org/10.1016/B978-0-12-815150-1.00002-X
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