B Rock Phys 1
rock physics
rock physics
Kartei Details
| Karten | 31 |
|---|---|
| Sprache | English |
| Kategorie | Naturkunde |
| Stufe | Universität |
| Erstellt / Aktualisiert | 11.04.2013 / 04.08.2017 |
| Lizenzierung | Kein Urheberrechtsschutz (CC0) |
| Weblink |
https://card2brain.ch/box/b_rock_phys_1
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| Einbinden |
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AVO stands for and is
Amplitude Vs Offest
analyses the effect of incidence angle on the seismic amplitude.
What do Gassman's equations do?
They relate a materials resistance to compression (bulk modulus) to its compositional makeup .
What do Gassmann's equations take into account?
the properties of the rocks matrix, pore space and pore fluids
In order to allow the estimation of changes in seismic velocity that result from changes in pore fluid you neewd to.
Calculate the bulk modulus of a saturated rock.
Bulk Modulus
K
resistance to compression
Poisson’s Ratio
Vp/Vs or σ
Measure of incompressibility
How can we limit the possible values of rock properties resulting from the strucutre of the pore space
Use theory to estimate upper and lower bounds of the elastic moduli
In order to simulate elastic media need to know
• Volume fractions of constituents • Elastic moduli of various constituents • Geometric details of relationships between constituents, how rock stuck together – rock frame
