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Journal of Porous Media
IF: 1.752 5-Year IF: 1.487 SJR: 0.43 SNIP: 0.762 CiteScore™: 2.3

ISSN Print: 1091-028X
ISSN Online: 1934-0508

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Journal of Porous Media

DOI: 10.1615/JPorMedia.2019029014
pages 435-445

THE EFFECT OF ATTENUATION ON FREQUENCY-DEPENDENT AVO BASED ON POROUS MEDIA THEORY

Hongxing Li
State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang, China
Chunhui Tao
Second Institute of Oceanography, State Oceanic Administration, Hangzhou, China
Cai Liu
Department of Geophysics, Jilin University, Changchun, China
Gennady Goloshubin
Department of Earth and Atmospheric Sciences, University of Houston, Houston, Texas, 77204, USA
Guangnan Huang
State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang, China
Hua Zhang
State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang, China
Shuanghu Shi
Bureau of Geophysical Prospecting, INC, CNPC, Zhuozhou, China
Jin Zhang
State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang, China
Xiaofeng Zhang
State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang, China

ABSTRACT

An oil and gas reservoir is a typical porous medium. The frequency-dependent amplitude variation with offset (FDAVO) is a recently developed technology for reservoir prediction. Traditional FDAVO is normally based on the Zoeppritz equation and does not involve the parameter of wave attenuation. The effect of attenuation on FDAVO was discussed based on the porous media theory. The wave reflections on the top interface of the reservoir and on the interface between oil-saturated and water-saturated reservoirs are simulated and analyzed. The results indicate that: the effects of attenuation on the reflection of slow compression waves are obvious for both interfaces; the effects of attenuation on the reflection of fast compression waves are slight for the top interface of the reservoir and more obvious for the interface between the oil-saturated and water-saturated reservoirs, especially in the lower frequency range; the effects of attenuation on the reflection of conversed shear wave are slight for the top interface of the reservoir and complicated for the interface between the oil-saturated and water-saturated reservoirs, especially in the frequency range of 0–50.

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