Feasibility Study For Seismic Monitoring Of Deep Water Campos Basin Fields: Albacora And Marlim

Feasibility studies are the first steps to be considered in a Time Lapse Seismic Monitoring (TLSM). The feasibility study<br>evaluates if a reservoir is seismic visible for TLSM or not. We performed feasibility studies for two turbidites fields in<br>Campos Basin: Marlim and Albacora. For this purpose, massive core and elastic logs analysis have been carried out.<br>Those analysis were used as a calibration input in order to better evaluate invasion and dispersion for acoustic<br>(monopole) log effects, generating therefore a more accurate basis for the fluid substitution exercise. 2D simple elastic<br>models for Marlim and Albacora have been generated. A seismic amplitude response was studied for those models with<br>oil/gas and oil/water substitution. A scale of random noise levels was added to the seismic response to evaluate the<br>sensitivity of the seismic amplitude to the fluid substitution. Comparative analysis was performed as well.