Open AccessLinearized inversion of vertically fractured media
Author(s) -
Beretta M. M.,
Bernasconi G.,
Drufuca G.
Publication year - 2000
Publication title -
geophysical journal international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.302
H-Index - 168
eISSN - 1365-246X
pISSN - 0956-540X
DOI - 10.1046/j.1365-246x.2000.00222.x
Subject(s) - geology , reflection coefficient , eigenvalues and eigenvectors , infill , offset (computer science) , azimuth , inversion (geology) , reflection (computer programming) , geophysics , seismology , geometry , optics , mathematics , physics , structural engineering , computer science , engineering , tectonics , quantum mechanics , programming language
SUMMARY In this paper we obtain a linearized reflection coefficient for quasi‐compressional waves in fracture‐related equivalent media, with respect to fracture density and infill material. We study the conditioning number of the inverse problem by analysis of eigenvalues and eigenvectors of this reflection coefficient. This is then used to investigate different acquisition geometries, either with varying azimuth or with varying offset. In the reservoir context, with fluid fill, only fracture density can be inverted using the P ‐wave AVO analysis.