Specific dynamic for the study of tight sand and shale reservoirs in a same area through no conventional interpretation The Neuquén Basin is one of the productive areas in Argentina. In its geological column we can find both traditional and unconventional reservoirs. Shale reservoirs (Vaca Muerta Formation) are source rocks and are located above some tight sands (Lajas Formation) with gas production. According to this particular arrangement, the interest zone ranges from 2.700 to 4.600 mTVDGL. For this study, in addition to traditional seismic interpretation, geometric attributes were calculated. Well and seismic data were also used to generate simultaneous inversion. Those results permitted obtain seismic geomechanical attributes. The interrelationship among them through co-visualizations and crossplots result in a better static characterization. That allowed an estimation of the anisotropy of unconventional reservoirs. Microseismic is added as a fundamental tool in understanding the management of fractures and the current stress field of the producing formations. Finally a closed and virtuous circle workflow improving well prognosis results and predicting the seismic sweetspots is described. The complex nature of the studied reservoirs involves the design of methodologies that makes the workflow converge in a virtuous circle, and a valuable feedback as it evolves. The result should be directed to understand the unconventional geological reality and to explain it assertively, with a description of the behavior of the reservoirs of interest, optimizing the economic value that the project will have at end of cycle.