NDLI: AVO approximation for PS-wave and its application in PP/PS joint inversion

Content Provider	Springer Nature Link
Author	Wang, Pu Hu, Tian Yue
Copyright Year	2011
Abstract	Multi-component exploration has many advantages over ordinary P-wave exploration. PP/PS joint AVO analysis and inversion are useful and powerful methods to discriminate between reservoir and non-productive lithology. In this paper, we derive a new PS-wave reflection coefficient approximation equation which is more accurate at larger incidence angles. The equation is simplified for small incidence angles, which makes AVO analysis clearer and easier for angles less than 30 degrees. Based on this approximation, a PP/PS joint inversion is introduced. A real data example shows that oil sands, brine sands and shales can be differentiated based on the P- to S-wave velocity ratio from the PP/PS joint inversion. Fluid factors and Poisson’s ratio also indicate an anomaly in the target zone at the oil well location.
Starting Page	189
Ending Page	196
Page Count	8
File Format	PDF
ISSN	16727975
Journal	Applied Geophysics
Volume Number	8
Issue Number	3
e-ISSN	19930658
Language	English
Publisher	Chinese Geophysical Society
Publisher Date	2011-10-15
Publisher Place	Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	PS wave AVO reflection coefficient joint inversion multi-component Applied Earth Sciences Geophysics/Geodesy
Content Type	Text
Resource Type	Article
Subject	Geophysics

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AVO approximation for PS-wave and its application in PP/PS joint inversion