Nobre, and two co-authors, reported in 2019 that based on the evaluation of the curves, the authors concluded that the 60 second-time setting delivers a satisfactory result. It is possible to observe increasing and decreasing cycles of total gamma radiation which accompany the curve performed while in the well during logging. However, in other intervals there were no good correlation and this can be explained by the conditions of recovery of the cutting samples, such as their arrival time to surface and because they represent the average of a 3-meter sedimentary interval. In this way, the authors are seeking the best method to apply to the tool and an appropriate processing. The acquired data and the method have shown to be promising since the authors will obtain four important geophysical data of the rocks, in addition, these curves will be fundamental mainly in intervals of the wells that were not logged.
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