On the basis of conventional surface seismic data, the 13-15-63-25W5M exploratory well was drilled into a low-relief Leduc Formation reef (Devonian Wood-bend Group) in the Simonette area, west-central Alberta, Canada. The well was expected to intersect the crest of the reef and encounter about 50-60 m of pay; unfortunately it was drilled into a flank position and abandoned. The decision to abandon the well, as opposed to whipstocking in the direction of the reef crest, was made after the acquisition and interpretive processing of both near-and far-offset (252 and 524 m, respectively) vertical seismic profile (VSP) data, and after the reanalysis of existing surface seismic data.


Geosciences and Geological and Petroleum Engineering

Keywords and Phrases

Borehole; Devonian; Hydrocarbon Exploration; Reef; Seismic Survey; Vertical Seismic Profile; Canada, Alberta, Simonette; Cost Effectiveness; Oil Well Drilling; Reefs; Seismic Response; Seismic Waves; Seismology; Surveys; Drilling Rigs; Exploratory Oil Well Drilling; Geological Surveys; Geology; Mapping; Oil Wells; Reefs; Surface Phenomena

Geographic Coverage

Alberta, Canada

International Standard Serial Number (ISSN)


Document Type

Article - Journal

Document Version

Final Version

File Type





© 1993 Society of Exploration Geophysicists, All rights reserved.

Publication Date

01 Nov 1993

Included in

Geology Commons