Articles

Article Image
September 1995

Interpretation of Aeromagnetic Data

Erwin Ebner, John Peirce and Nathalie Marchand

The previous three articles of this series on Potential Field (PF) Geophysics dealt with recent technical improvements in magnetics and gravity instrumentation as well as with critical components concerning data acquisition and PF project management. This article focuses on processing and interpretation of aeromagnetic data. Key aspects of each of…

Article Image
September 1995

The CSEG Internet Services

Howard G. Hepburn

...
Article Image
June 1995

Project Planning and Management for Magnetic Gravity Surveys

Erwin Ebner

The first two articles of this series on potential field (PF) geophysics dealt with recent technological improvements in gravity and magnetics survey systems. This article addresses issues from a project management perspective where questions such as Why are we doing this? What are we going to get out of it?…

Article Image
June 1995

Using Geostatistics to Aid in Reservoir Characterization

Sheldon B. Gorell

Proper characterization of reservoir heterogeneities is a well recognized requirement to predict reservoir performance accurately. Given the large investment requirements, long development schedules, and the often uncertain economic outlook, sound decision making requires reasonable estimates of how much, and when, oil will be produced. It is no longer sufficient to…

Article Image
May 1995

Field Comparison Between 16 and 24 Bit Data Acquisition Systems

John H.J. Paquette and Tony Sartorelli

A test survey was recently conducted to compare the relative performance of three types of seismographs. The equipment used was a DFS/v (Texas Instruments), an I/O System Two (Input/Output, Inc.), and a Bison 24000 (Bison Instruments, Inc.).

...
Article Image
April 1995

The New Wave

Dr. Thomas L. Davis

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…

Article Image
April 1995

3-D, 3-C Seismic Characterization of the Nisku Carbonate Reservoir, Joffre Field, South-Central Alberta

John Arestad, Bruce Mattocks, Thomas Davis and Robert Benson

The Reservoir Characterization Project (RCP) at the Colorado School of Mines has pioneered research into 3-D, 3-C (multicomponent) reflection seismology for nearly a decade utilizing both P-wave and S-wave sources. Multicomponent seismic surveys provide significantly more information about petroleum reservoirs than compressional wave surveys.

...
Article Image
April 1995

Using Amber to Probe the Past: from DNA to Dinosaurs

Ever since Pliny the Elder concluded that amber originated from the resin of extinct trees, humans have been fascinated with the presence of life forms in this magical material. What we do know about the formation of amber will be discussed, along with the characteristics of the enclosed fossils.

...
Article Image
March 1995

Satellite Navigation: Present Capabilities and Future Trends

Elizabeth Cannon

he use of satellites for positioning and navigation has become an important tool for scientists and engineers concerned with locating and monitoring various features and phenomenon. The Global Positioning System (GPS) is a twenty-four satellite system which provides global, all-weather, twenty-four hour a day navigation capability. The elements of the…

Article Image
March 1995

Recent Advances in Gravity Acquisition and Instrumentation – Part II

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…

Article Image
February 1995

A New Prospective on Pre-stack Migration Using Equivalent Offset and Common Scatter Point (CSP) Gathers

Dr. M. Elizabeth Cannon

A new process allows prestack migration to be simplified into the three steps of trace gathering, normal moveout, and stacking. This new method has many advantages that range from reduced processing times to more accurate velocity analysis.

...
Article Image
February 1995

An Overview of Digital Optical Disks

Graham Irving

With the explosion of CD Audio and CD-ROM discs today, most people are aware of optical disks and very likely use some form of optical disk technology, whether it be a home CD Audio player or a 2 Terabyte optical disk jukebox. Optical disks are currently making a significant impact…

Article Image
February 1995

Data Archival, Storage, and Distribution for the 1990’s and Beyond

Garth Paterson

This article is being written in response to a growing need for data managers and explorationists to gain information regarding the storage of digital seismic field and stack data on optical disk. There are two distinct areas involved in this storage, one is the long-term archive of the data, the…

Article Image
Article Image
January 1995

Swan Hills Unit #1: Adding Value with Seismic Through Reservoir Delineation and Characterization

Doug Uffen and Rick A. Wallace

The Swan Hills Unit #1 lies approximately 200 kilometres northwest of Edmonton, Alberta, Canada along the trend of several long-standing producing fields from the Swan Hills formation. Home Oil is the operator of Swan Hills Unit #1 with approximately 18% working interest. The field was discovered in 1957, two months…

Article Image
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…

Article Image
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…

Article Image
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.

...
Article Image
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…

Article Image
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.

...