Currently, there are still few studies related to the experimental verification of the dispersion of elastic modules and attenuation in seismic waves, much less in rocks analogous to petroleum reservoirs and with crude oil. Understanding that the knowledge of these methodologies can provide valuable information for this industry, and observing the frequency differences that exist between the field, in the profiles of wells and in laboratories commonly in high frequency. The use of wave propagation equipment at low frequencies appears as an alternative, which make it possible to improve the understanding of the dispersion and attenuation of waves in the seismic range. With this premise in this work, a low frequency equipment was built that allows to analyze the properties of the rocks in conditions similar to those in the field. This forced oscillation equipment has a structure similar to that developed in the laboratory of the University of Curtin-Australia, where creep tests were also carried out to determine its effects on sedimentary rocks. After completing the construction of the low frequency equipment at PUC-Rio, tests were carried out on a sample of Berea sandstone, obtaining satisfactory results that were verified with the Kramers-Kronig equations and the Gassmann fluid substitution equation. To conclude this work, samples of carbonate rocks - coquinas from the Morro do Chaves Formation in the Sergipe-Alagoas Basin were studied, considered analogous to the reservoirs in Brazil. The tests were performed with samples saturated with water and crude oil from the Santos Basin, where the dispersion of the elastic modules and attenuation was observed, showing a dependence on the frequency, stress, type of fluid and the characteristics of the rock, mainly.