Abstract
Available experimental data on elastic velocities of clay-air mixtures and clay-brine mixtures as a function
of porosity are re-interpreted. Pore radius as calculated from porosity and specific surface measured by
BET seems to be the factor controlling stiffness of these un-cemented sediments. For each of the two pore
fluids: air or brine smectitic clay and kaolinitic clay seem to have similar power law relationships between
a given elastic modulus and pore radius.
These results indicate that pore radius and thus permeability of shale in the depth interval of mechanical
compaction may be predicted from porosity and sonic velocity.
| Original language | English |
|---|---|
| Title of host publication | Unconventional ressources and the role of technology: 73rd EAGE Conferenc & exhibition |
| Volume | Conference proceedings & exhibitors' catalogue. CD-ROM |
| Publication date | 2011 |
| Pages | P307 |
| Publication status | Published - 2011 |
| Event | 73rd EAGE Annual Conference and Exhibition incorporating SPE Europec 2011 - Vienna, Austria Duration: 23 May 2011 → 26 May 2011 |
Conference
| Conference | 73rd EAGE Annual Conference and Exhibition incorporating SPE Europec 2011 |
|---|---|
| Country/Territory | Austria |
| City | Vienna |
| Period | 23/05/2011 → 26/05/2011 |
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