By J.H. Schön (Eds.)
'Physical homes of Rocks - a Workbook' is a symbiosis of a quick description of actual basics of rock houses (based on standard experimental effects and proper theories and versions) with a advisor for functional use of other theoretical ideas. For this goal a significant other website encompasses a number of version established equations in excel worksheets for useful software and coaching via the person to paintings along with his personal facts (or to ''play'' with the intention to display the consequences of assorted enter info and to illustrate the consequences of varied enter information in petrophysical paintings.
In unique chapters the matter of relationships among petrophysical parameters according to a number of version strategies is gifted as a foundation for mixed interpretation. This half additionally comprises the author's 'structured model'.
The workbook is end result of the the greater than forty years adventure of the writer in educating at universities and commercial classes.
- Presents all useful proper houses of rock in a single volume
- Experimental and theoretical basics in a scientific framework
- Special specialize in relationships among properties
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Additional info for Physical Properties of Rocks: A Workbook
30) and is related to interfacial tension6: σs1 2 σs2 ð2:68Þ cos Θ ¼ σ21 6 The term “surface tension” is also used. , for oilÀgas and waterÀgas systems.
The magnitude of the specific internal surface depends on the resolution of the method of determination. 6). 1 If more than one fluid is present, the spatial distribution of the different fluids depends on the physical properties of the rock material, on the fluid properties, and on interactions between the fluids and between fluids and solids (interfacial tension). 1 Under waste site conditions, however, other fluids may also be present. Chapter | 2 Pore Space Properties 31 In this section, only the volumetric or fractional description of different fluids is presented.
Permeability for shaly sand can be written as a function of the clean sand permeability ksd and the dispersed shale content Vsh kshaly sand ¼ ksd Vsh 1 2 αU φ 2 ð2:66Þ where the factor α is introduced because the cross section reducing shale/ clay effect is not completely described by the “dry” shale/clay volume. 66) can be used for regression analyses of experimental data. It is possible to use also other measures for the dispersed clay/shale volume and formulate equivalent equations for permeability.