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Title: Method for determining formation quality factor from well log data and its application to seismic reservoir characterization

Abstract

A method for seismic characterization of subsurface Earth formations includes determining at least one of compressional velocity and shear velocity, and determining reservoir parameters of subsurface Earth formations, at least including density, from data obtained from a wellbore penetrating the formations. A quality factor for the subsurface formations is calculated from the velocity, the density and the water saturation. A synthetic seismogram is calculated from the calculated quality factor and from the velocity and density. The synthetic seismogram is compared to a seismic survey made in the vicinity of the wellbore. At least one parameter is adjusted. The synthetic seismogram is recalculated using the adjusted parameter, and the adjusting, recalculating and comparing are repeated until a difference between the synthetic seismogram and the seismic survey falls below a selected threshold.

Inventors:
; ;
Publication Date:
Research Org.:
RDSP I L.P., Houston, TX (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1175865
Patent Number(s):
7,088,639
Application Number:
11/098,010
Assignee:
RDSP I L.P. (Houston, TX)
DOE Contract Number:  
FC26-01BC15356
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
58 GEOSCIENCES

Citation Formats

Walls, Joel, Taner, M. Turhan, and Dvorkin, Jack. Method for determining formation quality factor from well log data and its application to seismic reservoir characterization. United States: N. p., 2006. Web.
Walls, Joel, Taner, M. Turhan, & Dvorkin, Jack. Method for determining formation quality factor from well log data and its application to seismic reservoir characterization. United States.
Walls, Joel, Taner, M. Turhan, and Dvorkin, Jack. Tue . "Method for determining formation quality factor from well log data and its application to seismic reservoir characterization". United States. https://www.osti.gov/servlets/purl/1175865.
@article{osti_1175865,
title = {Method for determining formation quality factor from well log data and its application to seismic reservoir characterization},
author = {Walls, Joel and Taner, M. Turhan and Dvorkin, Jack},
abstractNote = {A method for seismic characterization of subsurface Earth formations includes determining at least one of compressional velocity and shear velocity, and determining reservoir parameters of subsurface Earth formations, at least including density, from data obtained from a wellbore penetrating the formations. A quality factor for the subsurface formations is calculated from the velocity, the density and the water saturation. A synthetic seismogram is calculated from the calculated quality factor and from the velocity and density. The synthetic seismogram is compared to a seismic survey made in the vicinity of the wellbore. At least one parameter is adjusted. The synthetic seismogram is recalculated using the adjusted parameter, and the adjusting, recalculating and comparing are repeated until a difference between the synthetic seismogram and the seismic survey falls below a selected threshold.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2006},
month = {8}
}

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