Articles
The APEGGA Registration Process
John Peirce
The CSEG/CSPG/APEGGA Liaison Committee has been considering issues that commonly arise in discussions with geologists and geophysicists when the subject of APEGGA is raised. The goal of the committee is to try to facilitate change from within the system in order to demonstrate that APEGGA can be sensitive and can…
Ground Penetrating Radar Investigation of the Canada Creosote Site, Calgary
Don Lawton and Harry Jol
The application of geophysical methods for near-surface studies related to environmental monitoring has increased significantly over the past few years. Knowledge of an industrial site is now required prior to plant construction, as well as for site remediation when industrial plants are dismantled. In particular, the presence of contaminants in…
University Profile University of Waterloo
John P. Greenhouse
The Earth Sciences Department at the University of Waterloo was founded in 1965, an offshoot of Civil Engineering. Today it is one of the largest geoscience departments in Canada, with 31 faculty, 26 Adjunct faculty, and a staff of 48. Our undergraduate population is currently 197, 116 in Science and…
Earthquakes and Hydrocarbon Production Near Fort St. John, B.C.
R.B. Horner, J.E. Barclay and J.M. MacRae
Beginning in 1984, a number of earthquakes have occurred in a region of oil and gas production just north of Fort St. John, B.C. Through 1993, 24 events have been detected ranging in magnitude (M) from about M 2.5 to M 4.1. The activity over the past two years has…
Recent Advances in Gravity Acquisition and Instrumentation – Part II
Dr. Erwin Ebner
Very high quality gravity surveys have been carried out for nearly half a century now. I have personally seen small gravity survey results from the late 1940's which rival present day quality. The main reason for this lies in the care with which these surveys were acquired. It took considerable…
An Evaluation of Ground Penetrating Radar for Imaging the Near Surface Examples from Contaminant Map
Don C. Lawton and Harry M. Jol
Ground penetrating radar (GPR) is becoming established as a new geophysical technique for imaging the near-surface. In this presentation, we assess GPR in terms of its application in the petroleum industry, and evaluate its capabilities for mapping a contaminated site near downtown Calgary and for delineating the internal geometry of…
3-D Survey Design by Computer
Mike Galbraith
3-D Acquisition requires careful planning. Laying out lines of receivers and lines of shots must be done with an eye to the expected results. Computer programs are now available to assist the geophysicist in this task.
... 3-D Survey Design by Computer
Mike Galbraith
oday's 3-D surveys can be large or small, laid in straight lines across deserts or tundra or along winding roads through forest and jungles. Because 3-D acquisition requires careful planning it is essential to analyze the complexities which naturally arise. Computer programs are now available to assist the explorationist with…
Pole Shooting
Rupert Goodhart
Surface shooting and other portable techniques were introduced to Canada to eliminate the impact of "dozing" wide seismic lines in beautiful and fragile terrain. The Foothills are not only a petroleum province with hydrocarbon resources in the many billions of dollars, but an area of scenic beauty without compare which…
1993 SEG Summer Workshop
Michael Enachescu
This year's SEG summer research workshop took place August 1-6, 1993, in Rancho Mirage, an exclusive golf and country resort situated in the southern California desert area. The day most of the participants arrived, the Palm Springs airport was shut down at 5 pm due to over-heating of the tarmac.
... CSEG/CSPG/APEGGA Liaison Committee
John W. Peirce
The CSEG/CSPG/APEGGA Liaison Committee has been focussing on issues of concern which have been raised by geologists and geophysicists who have complained about certain APEGGA policies. Our goal is to try to facilitate change from within the system in order to demonstrate that APEGGA can be sensitive to members' needs…
Trends in Seismic Data Acquisition – A Perspective
Kevin Williams
Many of the technical changes taking place in the oil industry are evident in the office of the explorationist. Desk top processing, workstation based 3D interpretation and visualization packages are familiar tools to the "state of the art" geophysicist.
... Limitations on the performance of field arrays and FK filters: models, case histories and remedies
John L. Varsek and Rod Morris
Not generally appreciated at first glance, but nonetheless crucial to understanding the recording and imaging of reflections, is the linkage between acquisition arrays and fk filters.
... Magnetic Tape “Stiction” Problem
Norman R. Pascal
At the November 1991 SEG Convention, Memorex Computer Supplies, a major manufacturer of magnetic tape; presented a white paper titled "Understanding Magnetic Tape Stiction and its Solutions" and reiterated this theme at a seminar held in Calgary on November 4, 1992. Other tape manufacturers currently distribute literature on the same…
S.E.G. Gold and Silver Certificate Recipients
At the CSEG Luncheon meeting held September 16, 1993, First Vice President Gary Taylor made the following presentations: Gold Certificate Peter I. Bediz for 50 years membership in the SEG. Silver Certificates - Roy F. Bjornson, David C. Caldwell, D.K. Bruce Fenwick, William E. Glenn, Charles R. Grigg, Emmanual Malterre,…
Synthetic Study to Estimate Errors in Wavelet Estimates and Distortions Introduced by Them in Velocity Inversion
Sudhir Jain
It is highly unlikely that the actual propagating wavelet for a seismic trace can be estimated precisely since the seismic data as well as the sonic and density logs are plagued with numerous imperfections, and the source-wavelet is altered in an undefined way by imperfect elasticity of the transmitting medium,…
Seismic Computing
Roy O. Lindseth
... Environmental Geophysics - Fad or Future?
Dr. Phillip Romig
This lecture is one of 14 to be presented between September and January by Dr. Phillip Romig) head of the Department of Geophysics at the Colorado School of Mines since 1983.
... 1993 CSEG Convention
Dan Hampson
The 1993 CSEG Convention was clearly a success. Many factors contributed to that success. The Convention Committee would like to take credit for them all, but modesty forces us to admit that we had nothing much to do with the tremendous upsurge in optimism and enthusiasm that just happens to…
Canadian Geophysical Union Scientific Meeting
J. B. Merriam
Following a very successful joint meeting with the AGU In Montreal in 1993, the Canadian Geophysical Union returned to its regular venue at Banff, Alberta, in 1993. One hundred and forty-two papers were presented in 16 sessions.
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