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1. (WO2013112466) METHOD TO CHARACTERIZE HETEROGENEOUS ANISOTROPIC MEDIA

Pub. No.:    WO/2013/112466    International Application No.:    PCT/US2013/022535
Publication Date: Fri Aug 02 01:59:59 CEST 2013 International Filing Date: Wed Jan 23 00:59:59 CET 2013
IPC: G01V 1/40
G01V 1/48
Applicants: SCHLUMBERGER CANADA LIMITED
SERVICES PETROLIERS SCHLUMBERGER
SCHLUMBERGER HOLDINGS LIMITED
SCHLUMBERGER TECHNOLOGY B.V.
PRAD RESEARCH AND DEVELOPMENT LIMITED
SCHLUMBERGER TECHNOLOGY CORPORATION
Inventors: JOCKER, Jeroen
WIELEMAKER, Erik
PRIOUL, Romain, Charles, Andre
VALERO, Henri-Pierre
Title: METHOD TO CHARACTERIZE HETEROGENEOUS ANISOTROPIC MEDIA
Abstract:
A computer-implemented method for determining elastic properties for a heterogeneous anisotropic geological formation is described herein. The method includes grouping sonic velocity data from a borehole section (or borehole sections) into a number of clusters (e.g., one or more clusters). The sonic velocity data is grouped into clusters using petrophysical log data from the borehole section. The method also includes inverting the sonic velocity data for the clusters to determine elastic properties for each cluster. In some cases, the elastic properties for the clusters are combined to determine a relationship between the elastic properties and formation heterogeneity.