Skip to Main Content
Book Chapter

Spectral Decomposition in a Heavy-oil and Bitumen Sand Reservoir

By
Carmen C. Dumitrescu
Carmen C. Dumitrescu
Terra-IQ Ltd., 10395 Rockyledge St., NW, Calgary, Alberta, T3G 5P8, Canada (e-mail: dumitrec@shaw.ca)
1Previous address: Geoscience, University of Calgary, 844 Campus Pl. NW, Calgary, Alberta, T2N 1N4, Canada
Search for other works by this author on:
Larry Lines
Larry Lines
Geoscience, University of Calgary, 844 Campus Pl. NW, Calgary, Alberta, T2N 1N4, Canada (e-mail: lrlines@ucalgary.ca)
Search for other works by this author on:
Published:
January 01, 2013

Abstract

In this chapter, seismic-attribute spectral decomposition (SD) is used for understanding heavy-oil and bitumen sand reservoir behavior and comprehending their heterogeneities for future reservoir simulation. Spectral decomposition is performed on the migrated stack and on amplitude-versus-offset (AVO) attributes (P- and S-wave impedance reflectivity). Examples provided in this chapter are from reservoirs with cold and thermal production. The observed differences between SD performed on P- and S-wave impedance reflectivity are explained with the solid state of the oil sands at their preproduction reservoir condition. The interpretation of the seismic attributes is based on the poroelastic and viscoelastic behaviors of the heavy oil and/or bitumen. The reservoir characteristics identified on the spectrally decomposed AVO attributes can be summarized as follows: (1) higher energy at the top and base of the reservoir is associated with shale; (2) medium to high energy is an indication of water sand; (3) low energy in the middle of the reservoir is commonly associated with thick bitumen zones that have high absorption; and (4) the bitumen-water interface is identified.

You do not currently have access to this article.

Figures & Tables

Contents

AAPG Studies in Geology

Heavy-oil and Oil-sand Petroleum Systems in Alberta and Beyond

Frances J. Hein
Frances J. Hein
Search for other works by this author on:
Dale Leckie
Dale Leckie
Search for other works by this author on:
Steve Larter
Steve Larter
Search for other works by this author on:
John R. Suter
John R. Suter
Search for other works by this author on:
American Association of Petroleum Geologists
Volume
64
ISBN electronic:
9781629812649
Publication date:
January 01, 2013

GeoRef

References

Related

Citing Books via

Close Modal
This Feature Is Available To Subscribers Only

Sign In or Create an Account

Close Modal
Close Modal