The geological provinces on the Pacific Coast of Peru have a long and complex geological history. The petroleum system has undergone more than a hundred years of exploration and exploitation (de Souza et at.), however its full potential remains to be understood. Integration of seismic and well data is key for building a consistent geological framework that can be used to explore its prospectivity. A case study with a robust petrophysics and rock physics workflow implemented in eleven wells from the North-West Pacific region of Peru is presented here. This workflow allowed us to predict the in-situ elastic response of the well logs, as well as investigate, in real-time, how potential geological scenarios, such as changes in porosity, mineral volume and fluid properties, can affect the response in elastic well logs and by extension in the seismic amplitudes.