A Multicomponent Walkaway Vertical Seismic Profile Experiment in a Heavy Oil Reservoir

A multicomponent walkaway VSP experiment was successfully processed and used to predict rock properties in a heavy oil reservoir. Post-stack image and pre-stack gathers were made for inversion and AVO analysis. A common shot reflectivity gather was also created for AVO study at the VSP well location. P and S-wave impedance, reflectivity, Vp/Vs and density were studied. AVO attributes and their crossplots were analyzed. Furthermore, AVO Lambda-mu-rho analysis and AVO modeling were conducted. The analyses helped to identify different lithologies and changes of fluids in the target reservoir. The study showed no obvious gas effects in the target interval, a finding validated by production data. The converted-wave data had good resolution. PP-PS joint inversion added more details to P-wave inversion only. This case study demonstrated that multicomponent VSP is an effective tool to predict rock properties, characterize the reservoir, and monitor production.

Name thesis:degree_name

Master of Science (MSc)

Discipline thesis:degree_discipline

Geology and Geophysics

Grantor dc:publisher.institution

Graduate Studies

Year dc:date.issued

2016

Author dc:creator

• Wu, Bona

Advisor dc:contributor.advisor

• Lawton, Donald Caleb

Committee members dc:contributor.committeemember

• Lines, Laurence R.
• Innanen, Kristopher A. H.
• Yarranton, Harvey

• Education--Sciences
• Geology
• Geophysics

Statement dc:rights

• University of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.

Language dc:language.iso

eng

DOI

http://dx.doi.org/10.11575/PRISM/24801

OAI identifier oai:identifier

oai:ucalgary.scholaris.ca:11023/2942