METHODOLOGY FOR THE PETROPHYSICAL CHARACTERIZATION OF NATURALLY FRACTURED RESERVOIRS

The desingned metodology focuses on rock characterization and its quality as a reservoir, heterogeneity, evidence on fractures and hydrocarbon storage, in order to determine and to identify properties in a system governed purely by matrix, by fracture or a combination of both, using well logs and properties measured on cores. From the differentiation of lithotypes and its characterization as a fractured system, was able to identified when a log is affected or influenced by fractures, avoiding wrong interpretations when a behavior is due to intrinsic factors to the physical principle of measurement and / or operating conditions of log acquisition. Knowledging what logs and which mathematical models apply to the identification of lithotypes and determination of matrix-fracture properties, petrophysical model and a methodology based on rock-log integration was created.