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GEOREF RECORD

Frequency-dependent AVO analysis

Douglas J. Foster, Zeyu Zhao, Dhananjay Kumar, Danica Dralus and Mrinal K. Sen
Frequency-dependent AVO analysis (in Reservoir characterization; part I, Ali Tura (prefacer) and Margarita Corzo (prefacer))
Leading Edge (Tulsa, OK) (February 2020) 39 (2): 84-91

Abstract

A method for generalizing the conventional amplitude variation with offset model from an isolated interface to a scattering reservoir interval is presented. The advantage of this new method is that it can provide enhanced detection of subtle reservoir and pore fluid properties. First- and second-order expressions for the reflected compressional wave energy from a specified heterogenous interval are given. These expressions are applied to two problems of interest for reservoir description. One application is discriminating low versus higher saturations of hydrocarbons, and the other is detecting the extent of vertical stratification within a reservoir. The first-order expression is used for determining hydrocarbon saturations, and the second-order expression is used for detecting the magnitude of fine-scale layering within a reservoir. Synthetic models and field data examples are used in demonstrating the applicability of the proposed method.


ISSN: 1070-485X
EISSN: 1938-3789
Serial Title: Leading Edge (Tulsa, OK)
Serial Volume: 39
Serial Issue: 2
Title: Frequency-dependent AVO analysis
Title: Reservoir characterization; part I
Author(s): Foster, Douglas J.Zhao, ZeyuKumar, DhananjayDralus, DanicaSen, Mrinal K.
Author(s): Tura, Aliprefacer
Author(s): Corzo, Margaritaprefacer
Affiliation: University of Texas at Austin, Institute for Geophysics, Austin, TX, United States
Affiliation: Colorado School of Mines, Golden, CO, United States
Pages: 84-91
Published: 202002
Text Language: English
Publisher: Society of Exploration Geophysicists, Tulsa, OK, United States
References: 20
Accession Number: 2020-074326
Categories: Economic geology, geology of energy sourcesApplied geophysics
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus.
Secondary Affiliation: BP America, USA, United States
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2020, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States. Reference includes data supplied by Society of Exploration Geophysicists, Tulsa, OK, United States
Update Code: 2020
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