An analytical model for pore volume compressibility of reservoir rock

摘要

The pore volume compressibility of reservoir rock is usually measured by volume method and the relation between compressibility and porosity follows the Hall plot. However, the volume method yields a high pore volume compressibility value and a negative correlation between compressibility and porosity. Both results illustrate that unconventional reservoirs with low porosity has higher elastic energy than conventional reservoirs with high porosity, which disagrees with the production practice.