| Acronym | Meaning |
| BHSIP | Bottom-hole Shut-in Pressure |
| EBA | Eikonal Born Approxn. |
| MNDO-HE | Modified Neglect Of Diatomic Overlap-half Electron |
| ACIOSA | Adiabatic Capture Infinite Order Sudden Approximation |
| DOS | Density Of States (in Band Structures) |
| TESS | Transform Method For Extinction-scattering With Spatial Resoln. |
| CVB | Canonical Valence Bond |
| AMEM | A.D.L. Migration Estimation Model |
| GEMS | General Energy And Material Balance System [model] |
| CASH | CaO-Al2O3-SiO2-H2O System |