Bibliographic Citation
| Document | For copies of Journal Articles, please contact the Publisher or your local public or university library and refer to the information in the Resource Relation field. For copies of other documents, please see the Availability, Publisher, Research Organization, Resource Relation and/or Author (affiliation information) fields and/or Document Availability. |
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| DOI | http://dx.doi.org/10.1029/95GL00164 |
| Title | Differential effective medium modeling of rock elastic moduli with critical porosity constraints |
| Creator/Author | Mukerji, T. ; Mavko, G. [Stanford Univ. CA (United States)] ; Berryman, J. ; Berge, P. [Lawrence Livermore National Lab., CA (United States)] |
| Publication Date | 1995 Mar 01 |
| OSTI Identifier | OSTI ID: 183353 |
| Other Number(s) | Journal ID: GPRLAJ; ISSN 0094-8276; Other: CNN: Contract AC21-91MC28087;Contract 5093-260-2703;Contract W-7405-ENG-48; TRN: TRN: 95:005763-0001 |
| Resource Type | Journal Article |
| Resource Relation | Journal Name: Geophysical Research Letters; Journal Volume: 22; Journal Issue: 5; Other Information: PBD: 1 Mar 1995 |
| Subject | 36 MATERIALS SCIENCE; ROCKS; ELASTICITY; POROSITY; MATHEMATICAL MODELS |
| Description/Abstract | Rocks generally have a percolation porosity at which they lose rigidity and fall apart. Percolation behaviour is a purely geometrical property, independent of any physical properties, and is a powerful constraint on any valid velocity-porosity relation. The authors show how the conventional Differential Effective Medium (DEM) theory can be modified to incorporate percolation of elastic moduli in rocks by taking the material at the critical porosity as one of the constituents of a two-phase composite. Any desired percolation porosity can be specified as an input. In contrast, the conventional DEM model always predicts percolation at a porosity of either 0 or 100 percent. Most sedimentary rocks however have intermediate percolation porosities and are therefore not well represented by the conventional theory. The modified DEM model incorporates percolation behavior, and at the same time is always consistent with the Hashin-Shtrikman bounds. The predictions compare favorably with laboratory sandstone data. 24 refs., 3 figs. |
| Country of Publication | United States |
| Language | English |
| Format | Medium: X; Size: pp. 555-558 |
| System Entry Date | 2008 Feb 04 |
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Last Updated: 11/19/2009