Carbonate porosity can be predicted approximately on a regional scale as a function of thermal maturity. Thus: theta = a (TTI) b, where theta = regional porosity, a = a constant for a given region and varies by an order of magnitude, TTI = Lopatin's time-T index of thermal maturity and b approx -0.372. -K.A.R.
Additional Publication Details
Empirical relation between carbonate porosity and thermal maturity: an approach to regional porosity prediction.
American Association of Petroleum Geologists Bulletin