Zobrazeno 1 - 5
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pro vyhledávání: '"Michele De Stefano"'
Autor:
Michele De Stefano, Stefano Panepinto
Publikováno v:
Geophysical Prospecting. 65:1366-1379
Due to its simplicity, stability, and efficiency, the use of right rectangular prisms is still widespread for potential field modelling and inversion. It is well known that modelling the subsurface with Cartesian grids has important consequences in t
Publikováno v:
GEOPHYSICS. 76:R69-R80
We describe an effective method for joining the benefits of inversion of different kinds of measurements. We show the simultaneous joint inversion objective function, which allows users to link different inversion domains, like seismic with gravity o
Publikováno v:
SEG Technical Program Expanded Abstracts 2013.
We present an application of a preconditioned nonlinear conjugate gradients (PC-NLCG) optimizer to a non-electromagnetic inversion case, specifically, a common-image-point (CIP) seismic tomography. The new solver has been plugged into our simultaneou
Autor:
Michele De Stefano
Publikováno v:
SEG Technical Program Expanded Abstracts 2011.
I describe the preliminary results of ongoing research on the implementation of a magnetic inversion exploiting a novel positivity constraint and a nonlinear algorithm for the optimization. Inversion is performed into the magnetization domain and not
Publikováno v:
SEG Technical Program Expanded Abstracts 2010.
The shallow subsurface often exhibits large and rapid vertical and horizontal variations due to structural and stratigraphic reasons. The low compaction and cementation of shallow formations can generate extreme velocity changes, especially in arid a