Inversion of fracture properties based on frequency dependent seismic AVAZ attributes

Yuwei Liu; Ning Dong; Xiwu Liu; Yequan Chen

doi:10.1190/segam2015-5841798.1

Inversion of fracture properties based on frequency dependent seismic AVAZ attributes

Yuwei Liu^*, Ning Dong, Xiwu Liu, Yequan Chen

^*Corresponding author for this work

SINOPEC

Research output: Contribution to journal › Conference article › peer-review

Abstract

Fracture systems are often characterized by using seismic anisotropy. Only fracture density and azimuth can be estimated with the limitation of traditional equivalent medium theories however frequency-dependent anisotropy is very sensitive to the scale of fractures. Recent studies have shown the potential of using frequency dependent seismic attributes to estimate reservoir seismic anisotropy. In this study, the objective of the inversion is to estimate fracture properties including fracture strike, fracture density, fracture length and fluid type from seismic frequency dependent amplitude versus incident angle and azimuth (AVAZ) data. Obtain the solution by genetic algorithm (GA) simulation and then characterize the uncertainty in the inversion results, respectively and analysis posterior probabilities influenced by prior probabilities based on Bayesian theory.

Original language	English
Pages (from-to)	664-668
Number of pages	5
Journal	SEG Technical Program Expanded Abstracts
Volume	34
DOIs	https://doi.org/10.1190/segam2015-5841798.1
Publication status	Published - 2015
Externally published	Yes
Event	SEG New Orleans Annual Meeting, SEG 2015 - New Orleans, United States Duration: 18 Oct 2011 → 23 Oct 2011

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10.1190/segam2015-5841798.1

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title = "Inversion of fracture properties based on frequency dependent seismic AVAZ attributes",

abstract = "Fracture systems are often characterized by using seismic anisotropy. Only fracture density and azimuth can be estimated with the limitation of traditional equivalent medium theories however frequency-dependent anisotropy is very sensitive to the scale of fractures. Recent studies have shown the potential of using frequency dependent seismic attributes to estimate reservoir seismic anisotropy. In this study, the objective of the inversion is to estimate fracture properties including fracture strike, fracture density, fracture length and fluid type from seismic frequency dependent amplitude versus incident angle and azimuth (AVAZ) data. Obtain the solution by genetic algorithm (GA) simulation and then characterize the uncertainty in the inversion results, respectively and analysis posterior probabilities influenced by prior probabilities based on Bayesian theory.",

author = "Yuwei Liu and Ning Dong and Xiwu Liu and Yequan Chen",

note = "Publisher Copyright: {\textcopyright} 2015 SEG.; SEG New Orleans Annual Meeting, SEG 2015 ; Conference date: 18-10-2011 Through 23-10-2011",

year = "2015",

doi = "10.1190/segam2015-5841798.1",

language = "English",

volume = "34",

pages = "664--668",

journal = "SEG Technical Program Expanded Abstracts",

issn = "1052-3812",

publisher = "Society of Exploration Geophysicists",

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TY - JOUR

T1 - Inversion of fracture properties based on frequency dependent seismic AVAZ attributes

AU - Liu, Yuwei

AU - Dong, Ning

AU - Liu, Xiwu

AU - Chen, Yequan

PY - 2015

Y1 - 2015

N2 - Fracture systems are often characterized by using seismic anisotropy. Only fracture density and azimuth can be estimated with the limitation of traditional equivalent medium theories however frequency-dependent anisotropy is very sensitive to the scale of fractures. Recent studies have shown the potential of using frequency dependent seismic attributes to estimate reservoir seismic anisotropy. In this study, the objective of the inversion is to estimate fracture properties including fracture strike, fracture density, fracture length and fluid type from seismic frequency dependent amplitude versus incident angle and azimuth (AVAZ) data. Obtain the solution by genetic algorithm (GA) simulation and then characterize the uncertainty in the inversion results, respectively and analysis posterior probabilities influenced by prior probabilities based on Bayesian theory.

AB - Fracture systems are often characterized by using seismic anisotropy. Only fracture density and azimuth can be estimated with the limitation of traditional equivalent medium theories however frequency-dependent anisotropy is very sensitive to the scale of fractures. Recent studies have shown the potential of using frequency dependent seismic attributes to estimate reservoir seismic anisotropy. In this study, the objective of the inversion is to estimate fracture properties including fracture strike, fracture density, fracture length and fluid type from seismic frequency dependent amplitude versus incident angle and azimuth (AVAZ) data. Obtain the solution by genetic algorithm (GA) simulation and then characterize the uncertainty in the inversion results, respectively and analysis posterior probabilities influenced by prior probabilities based on Bayesian theory.

UR - http://www.scopus.com/inward/record.url?scp=85018952855&partnerID=8YFLogxK

U2 - 10.1190/segam2015-5841798.1

DO - 10.1190/segam2015-5841798.1

M3 - Conference article

AN - SCOPUS:85018952855

SN - 1052-3812

VL - 34

SP - 664

EP - 668

JO - SEG Technical Program Expanded Abstracts

JF - SEG Technical Program Expanded Abstracts

T2 - SEG New Orleans Annual Meeting, SEG 2015

Y2 - 18 October 2011 through 23 October 2011

ER -

Inversion of fracture properties based on frequency dependent seismic AVAZ attributes

Abstract

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