Recherche pétrolière et gazière

Abstrait

Luminous efficacy fractal dimension for characterizing Shajara Reservoirs of the Permo-Carboniferous Shajara Formation, Saudi Arabia

Khalid Elyas Mohamed Elameen

The quality and assessment of a reservoir can be documented in details by the application of luminous efficacy. This research aims to calculate fractal dimension from the relationship among luminous efficacy, maximum luminous efficacy and wetting phase saturation and to approve it by the fractal dimension derived from the relationship among capillary pressure and wetting phase saturation. Two equations for calculating the fractal dimensions have been employed. The first one describes the functional relationship between wetting phase saturation, luminous efficacy, maximum luminous efficacy and fractal dimension. The second equation implies to the wetting phase saturation as a function of capillary pressure and the fractal dimension. Two procedures for obtaining the fractal dimension have been utilized. The first procedure was done by plotting the logarithm of the ratio between luminous efficacy and maximum luminous efficacy versus logarithm wetting phase saturation. The slope of the first procedure = 3- Df (fractal dimension). The second procedure for obtaining the fractal dimension was determined by plotting the logarithm of capillary pressure versus the logarithm of wetting phase saturation.