Articles
Optimized Determination of Migration Velocities
K. Stinson, Wai-Kin Chan, E. Crase, and S. Levy
A system for automatic, high density migration velocity estimation and imaging has been developed. The automatic migration velocity determination utilizes a set of objective norms which measure the quality of the migration as a function of velocity. Both the migrated gathers and the migrated image cube are used to calculate…
The MEGATEM fixed-wing transient EM system applied to mineral exploration: a discovery case history
Richard Smith, David Fountain
In the mid-1980s, Geoterrex (later Fugro Airborne Surveys) introduced the GEOTEM system, a fully digital airborne electromagnetic (AEM) receiver, using the same transmitter that had previously been used, very successfully, on the INPUT system (Annan, 1990). The GEOTEM system is mounted on a twin engine CASA 212 aircraft, and the…
The AIRGrav airborne gravity system
S. Sander, M. Argyle, S. Elieff, S. Ferguson, V. Lavoie and L. Sander
Sander Geophysics’ AIRGrav airborne gravity project started in 1992 with the purpose of designing an airborne gravimeter that would be well suited to the dynamic environment of an aircraft. The five year research and development project resulted in the AIRGrav system, which has been used for airborne surveying since 1997.…
A guide to effective geophysical writing and presentation
Robert Stewart, James Brown, Don Lawton, and Laurence Lines
Much of the value of our geophysical work follows from conveying it to others, either orally or in writing. Geophysical studies are often communicated, both in print and presentation, in a general structure that includes an overview and introduction, a section on methods and results, some discussion with a summary,…
How I discovered the true value of Geophysics
Art Barnes
Two and a half years ago I was invited to write a report for The RECORDER on the state of geophysics in sunny Denver, Colorado. I immediately set to work. After prodigious and diligent labor, I have completed my report, which I now humbly submit. It is a curious history…
High Resolution 3D Seismic Imaging Using 3C Data from Large Borehole Seismic Arrays
Björn Paulsson, M. Karrenbach, P. Milligan, A.Goertz, A.H. Paulsson
The highest resolution 3D imaging and monitoring technology for managing oil and gas reservoirs today is provided by large borehole seismic arrays recording 3C data generated by standard surface seismic sources deployed over a wide area around one or several receiver wells.
... Alternative Transportation
Helen Isaac
What’s new in the development of transportation systems that might reduce our dependence on hydrocarbon fuels? This article takes a quick look at some innovations recently in the news.
... ISEEE – A Unique Model to Advance Sustainable Energy Technologies
Mark Lowey
The University of Calgary established the Institute for Sustainable Energy, Environment and Economy (ISEEE) in October 2003. ISEEE is a unique model, created through the U of C’s academic plan, which makes "Leading Innovation in Energy and Environment" a strategic priority. The institute is the vehicle to deliver on the…
Thinking Outside the Box: The Paradigm Shift Implied by Developing Alternative Energy Resources
Michal C. Moore
Energy is the key driver that underlies modern civilization and industrial development. Without access to energy sources that are affordable and reliable, no nation will attain or maintain the competitive base needed to improve or advance the lot of its citizens. Although many argue that access to such critical elements…
Application of texture attribute analysis to 3D seismic data
Satinder Chopra and Vladimir Alexeev
In this study, texture attribute analysis application to 3D surface seismic data is presented. This is done by choosing a cubic texel from the seismic data to generate a grey-level occurrence matrix, which in turn is used to compute second-order statistical measures of textural characteristics. The cubic texel is then…
Looking inside Turtle Mountain: Mapping fractures with GPR
Ulrich Theune, Douglas Schmitt and Mauricio Sacchi
The rock avalanche at Turtle Mountain, Canada, in 1903 destroyed the town of Frank causing the death of approximately 70 people. The geological unstable mountain still poses danger for the surrounding villages. In order to prevent future causalities, the Government of Alberta initiated a detailed geotechnical hazard assessment of Turtle…
Seismic and Resistivity Imaging for Quaternary Channels, Rainbow Lake Northwest Alberta, Canada
Jawwad Ahmad and Douglas R. Schmitt
Buried channels are former valleys that were filled in as a result of recent glaciation. Such features contain high porosity sands and gravels often saturated with water or even natural gas, both of which are important resources. With regards to gas production, although the reservoirs found to date are quite…
Young Geophysicist Forum
On Tuesday May 17, the second day of the CSEG convention, the first meeting of the Young Geophysicist Form (YGF) was held at Ceili’s in Penny Lane. The purpose of the YGF was to allow current students, recent graduates, and individuals with less then 5 years experience the opportunity to…
Geologically Reasonable Vεδθ Models for Depth Imaging
Rachel T. Newrick and Don C. Lawton
... New Geological Timescale
The geologic time scale is the framework for deciphering the history of the Earth. A new geologic time scale has been prepared by a large number of experts working with radiogenic and stable isotopes, stratigraphers using diverse tools from traditional fossils to astronomical cycles to database programming, and geomathematicians. Contributions…
2005 CSEG National Convention – Awards Distribution
2005 CSEG National Convention Awards Distribution
... Archaeological Reconnaissance at Tel Yavne, Israel: 2-D Electrical Imaging and Low Altitude Aerial Photography
Paul Bauman, Avner Goren, Richard Freund and Phillip Reeder
Tel Yavne in Israel is the site of the ancient city of Yavne. Located about 20 kilometers south of Tel Aviv, and about 8 km inland from the ancient seaport of Yavne Yam (meaning Yavne by the Sea), it is believed that underneath the tel (an archaeological mound) are the…
Pitfalls in 3-D Interpretation
Alistair Brown
As a consultant I am often in a position to review seismic interpretations by others. It allows me time to reflect on how geoscientists can improve interpretations and avoid pitfalls.
... 2004/2005 CSEG Scholarships
Erin Lamb-Fauquier
The CSEG Scholarship Trust Fund was established July 1, 1975 and is run by a minimum of three volunteers in any given year. Currently, the Scholarship Trust Fund is the only charitable organization associated with the CSEG, but will soon form the basis for the new CSEG Foundation presently being…
