• post-stack
• pre-stack
• synthetic data
• Kirchhoff-depth-migration
• Larderello
• seismic reflection
• 3D land data

In this thesis, Kirchhoff Depth Migration was performed on 3D land seismic reflection data acquired in the Larderello geothermal field, in south Tuscany. The ProMAX software was used for the processing, together with Matlab, while OpendTect software was used for display purpose.
The used data are properties of Enel Green Power that organized and directed the acquisition campaign.
Firstly, some tests on Post Stack Depth Migration was performed using different parameters, different velocity models and differently processed input data. Then a synthetic model was built to better understand how the Pre and Post stack migration operetor works. Finally Pre Stack Depth Migration was performed on the real data.
The result obtained from the Pre Stack Depth Migration considering the velocity model carried out by the FWI was good, while the Post Stack Depth Migration was not able to manage these complicate data.
Their energy and lateral continuity are highly improved with respect to the stack volume in time.
Must be said that the data studied in this work are really challenging and, for this reason, the obtained result is not so easy to be interpreted, but it brought many clear improvements making possible the visibility of shallow structures not well identifiable before and revealing their real geometrical collocation in depth.