Articles

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December 1994

Seismic Parameter Design: in a Nutshell

A. Easton Wren

The diverse range of modern seismic activities precludes the possibility of a "jack-of-all-trades" geophysicist. Bridging the practical and technical gaps between acquisition and processing with modelling and interpretation is more elusive than ever, even with powerful multi-purpose work stations. Competence in one area of activity may simply be the conditioner…

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December 1994

CSEG/CSPG ‘94 Exploration Update

Neil Rutherford

The opening session of the joint CSEG/CSPG Exploration Update convention held in Calgary in May consisted of three panel sessions. Prominent speakers from a variety of Calgary based companies were invited to present their views on three separate subjects. The session attracted about 1000 convention registrants eager to hear the…

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December 1994

CGU Annual Meeting

J.B. Merriam

The Canadian Geophysical Union met in Banff, Alberta for its twentieth annual meeting May 14 to 18, 1994. One hundred and seventy six papers were presented in twenty one sessions. There were several new sessions this year including porous media-rock physics, marine geophysics, and global change.

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November 1994

Lithoprobe Crustal Seismic Profiles in Central Alberta: New Reflections on the Evolution of the Albe

Gerald M. Ross, David W. Eaton, Bernd Milkereit, and Ernest R. Kanasewich

The crystalline basement beneath WCSB (Western Canadian Sedimentary Basin) is composed of crustal domains delineated on the basis of aeromagnetic signatures and U-Pb zircon geochronology of drill core recovered by the petroleum industry. Using analogies from the Canadian Shield, the mosaic of crustal domains is inferred to have formed during…

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November 1994

A Recommended Approach for Storing Field Data on CD-ROM

Lain Eng

CD-ROM technology is poised to become the worldwide medium of choice for information distribution and storage. CD-ROMs will become the floppy disks of the future. CD recorders (CD-Rs) will be as common place as an office photocopier.

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November 1994

1995 Election of Officers Candidates

1995 CSEG Executive election candidates including their bios.

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October 1994

The Seismic Wavelet, Well Ties, and the Search for Stratigraphic Traps

Anton Ziolkowski

In most mature hydrocarbon provinces it is estimated that 40 per cent of the oil is found in stratigraphic traps, which are often very difficult to identify on seismic data directly. I suggest that the difficulty is caused by three related problems; deconvolution, multiple removal - especially in marine data and well ties.…

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October 1994

Ground-Based Magnetic Horizontal Gradient Intensity and Radiometric Surveys, a Cost-Effective Hydrocarbon Exploration Tool: Three Case Histories in Western Canada

Leonard A. LeSchack

Three case histories are discussed where ground-based magnetic horizontal gradient intensity (HGI) and radiometric (RAD) exploration surveys have been used effectively in Western Canada. 

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September 1994

The Progress of Geophysical Reservoir Description at Hibernia

Gary Taylor and Denis Couturier

Hibernia is located at latitude N. 46°44', longitude W. 48° 46' on the continental margin of the North Atlantic Ocean. Water depth is 78 metres, deepening east of the field as the Grand Banks of Newfoundland descend to the abyssal plain. The local marine environment is severe with storms, 20…

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September 1994

Ricker, Ormsby, Klander, Butterworth – A Choice of Wavelets

Harold Ryan

Commercially available software used to generate synthetic seismograms gives the geophysicist a choice of up to four types of standardized wavelets as well as the option of a user-defined wavelet. This review article will summarize the characteristics of these wavelets, illustrate the shape of the wavelets and their frequency spectrum…

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June 1994

The Future Role of the Seismic Method in Petroleum Exploration

S. Rutt Bridges

Experts from a variety of fields have predicted a revolution in computational power within the next five years. It is now apparent that we will soon have desktop Cray Y-MP equivalents and parallel machines readily available as network compute servers with teraflop performance. In addition, we will have the capability…

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June 1994

Sudhir Jain

Barbara Young

A cornerstone in the geophysical research and development field in Calgary for the last 20 years, Sudhir Jain, will be closing his company, Commonwealth Geophysical, at the end of June and moving on to other things. Sudhir's contribution to the geophysical community, not only in new software and techniques for…

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June 1994

C.S.E.G. Annual Meeting & Awards Luncheon

CSEG Executive Committee

The CSEG Annual Meeting was held March 15th, 1994 at the Westin Hotel. A Very Successful lunch time Awards Presentation and Business Meeting as well as a presentation on Earthquakes near Fort St. John. B.C.. was enjoyed by all in attendance. Several Societies within our industry were represented. 

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June 1994

C.S.E.G. Geophysical Workstation SEGY Standards

Doug Bath

With the proliferation of geophysical workstations in the industry it was felt by several members that the standards for SEGY stack data should be re-examined and if necessary brought up-to-date. Accordingly a committee was formed to discuss standards for geophysical workstation SEGY data formats. The following is a summary of…

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May 1994

Workshop on Problems with Phase

Stewart Trickett

On the afternoon of May 6, 1993, the final day of the annual convention of the Canadian Society of Exploration Geophysicists, a workshop entitled "Problems with Phase" was held at the Calgary Convention Centre. It produced a fascinating look at a subject which, despite its longevity, continues to present major…

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April 1994

Optimization Methods for Prestack and Poststack Migration (Migration without Migraines)

Larry Lines, Andrew Burton and Han-xing Lu

Increased efficiency of finding and developing hydrocarbon resources while reducing the environmental impact through geophysical technology is critical to the future of the petroleum industry. This technology must remotely determine rock-fluid property characteristics, their geometry, and changes over time. In reviewing advancements in exploration seismology, three component 3-D seismology stands…

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April 1994

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…

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April 1994

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…

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April 1994

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…

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March 1994

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…