Abstract

There are many advanced methods applied in petroleum exploration depend on each object and the amount of available data from the area of interest. One of them is geochemical method. It was proved to be very useful through many exploration periods, especially in the first one when there are no wells in a large region. Source rock maturity depend on many elements but time and temperature are two main elements. Lopatin described a simple method by which the effects of both time and temperature could be taken into account in calculating the thermal maturity of organic material in sediments. By using Lopatin's method, we designed a software named OME-1 to estimate the thermal maturity. It has many advantages and very useful, especially in areas of rapid variability of water depth and geothermal gradient, on the other hand geological modelling also controls uncertainty of results.