Carbonate formations represent a challenge for reservoir engineering given their high heterogeneity as a result of their sedimentary origin and post-deposition diagenetic effects. Because the determination of the rock-compressibility value in carbonate naturally fractured reservoirs (NFRs) is paramount, a need arises to generate rock-compressibility correlations for the NFRs of Mexico. The developed methodology consisted of compiling all information from laboratory analysis of cores to generate a database. With this information, it was possible to correlate the compressibilities obtained and discretize the compressibility of the matrix and fractures at reservoir scale.
Rock Compressibility and Effective Stress Influence in Carbonate Cores
In hydrocarbon-producing reservoirs, the formation is subject to external (overburden pressure) and internal (pore pressure) stresses, which interact by altering the balance within the medium when the extraction of hydrocarbons begins.
