Berea Sandstone™ Petroleum Cores
For over 25 years, the Petroleum Industry has been using Berea Sandstone™ as the sandstone test material of choice. The Berea Sandstone™ has excellent, uniform material properties. Researchers throughout the world have performed thousands of core flooding tests using the Berea Sandstone™ to characterize the oil production in other sandstone reservoirs during primary, secondary, and tertiary oil flooding. The literature is filled with published results of numerous tests, so researchers throughout the world can compare results and optimize their own processes.
The chemical composition of the Berea Sandstone™ are well known and are as follows:
| Permeability Range | Availability | |||
| Silica | SiO2 | 93.13% | Less than 50 mD | As Available |
| Alumina | AI2O3 | 3.86% | 50-100 mD | Rare |
| Ferric Oxide | Fe2O3 | .11% | 100-200 mD | Available - Standard |
| Ferrous Oxide | FeO | .54% | 200-500 mD | Rare |
| Magnesium Oxide | MgO | .25% | 500-1000 mD | As Available |
| Calcium Oxide | CaO | .10% | Greater than 1000 mD | Rare |
| Compressive Strength averages 11,000-12,000 PSI | ||||