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| Titel |
Estimating the permeability-depth relation of sedimentary rocks based on the porosity-permeability relation and porosity well logging |
| VerfasserIn |
J.-J. Dong, W.-J. Wu |
| Konferenz |
EGU General Assembly 2012
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 14 (2012) |
| Datensatznummer |
250059978
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| Zusammenfassung |
| The spatial variation of permeability in sedimentary basin is essential for fluid flow modeling. This research demonstrates how to obtain the permeability-depth relation from the laboratory-based porosity-permeability relation and porosity well logging. The effect stress/stress history-dependent porosity/permeability models of sedimentary rock were proposed based on laboratory measurement. Accordingly, the effect of the maximum overburden on the porosity-permeability relation can be considered. Fourteen samples, including sandstones and mudstones collected from Taiwan Chelungpu-fault Drilling Project, were used to determine the parameters in the proposed porosity/permeability models. The porosity-depth relation, which derived from the sonic well logging, was used to obtain the permeability-depth relation together with the laboratory-based porosity-permeability relation. The results show that the lithology, in-situ effect stress, as well as the thrusting and erosion of strata, dominate the permeability-depth relation if the influence of fractures are neglected. |
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