Articles
Digital Seismic Dilemma, Ownership and Copyright of Offshore Data
Michael Enachescu
From the Georges Bank Basin at the Canada/USA border in the South, to the tip of the Labrador Peninsula in the North, an impressive area of over 600,000 square kilometers offshore Atlantic Canada has potential for petroleum exploration. Only about 360 exploration and delineation wells have been drilled in this…
Simultaneous AVO Inversion for Leading Edge – Integrated Seismic Reservoir Characterization
Matt Brzostowski
Over the last several years, the oil and gas industry has been pushing for a tighter integration of seismic and reservoir properties through the use of quantitative rock physics relationships. The crux of this quantitative seismic interpretation is the use of P-wave velocity, S-wave velocity and density, measured in the…
An integrated geophysical study for orebody delineation
E. L’Heureux, H. Ugalde, W. Qian, B. Milkereit, C. Nasui
Properly constraining the shape and size of an orebody requires a complete database of geophysical and geological information derived from both surface and borehole data; each dataset provides a means of outlining the relevant changes in physical properties in either one or two dimensions. In this paper we present the…
What you know about The Ghawar Oil Field, Saudi Arabia?
Bandar D. Al-Anazi
The Ghawar Oil Field is by far the largest conventional oil field in the world and accounts for more than half of the cumulative oil production of Saudi Arabia. Although it is a single field, it is divided into six areas. From north to south, they are Fazran, Ain Dar,…
Junior Geophysicists Forum (JGF)
Time for a recap of another Junior Geophysicists Forum (JGF). It is hard to believe that we have already had the 4th JGF and the 5th is just around the corner! So sit back, relax, and find out what happened at the last JGF (or maybe this will help to…
Let it Flow. The Flow of Business.
David Mitrovica
As part of the 2007 convention, a series of sessions addressing wider business, environmental and social issues have been included. David Mitrovica, P.Geoph., the lead organizer of these sessions responds, in this article, to the reasons behind the sessions and the importance and relevance to the geoscientist.
... The Ins and Outs of a CSEG Foundation Scholarship…
Rachel Newrick, Warren Pearson, and Jessica McPherson
In 2006, 24 CSEG Scholarships went to deserving candidates. This article explains how to donate towards a scholarship, apply for a scholarship, successfully be awarded a scholarship and, lastly, let’s you hear from the scholarship winners of 2006/2007 academic year.
... Illuminating Reservoirs with Electromagnetics
Leonard Srnka
... Offshore BC – Current Status
Bill Phelan
British Columbia remains committed to the responsible development of the Province’s offshore oil and gas resources. The Geological Survey of Canada estimates the Queen Charlotte Basin (the largest and most commercially prospective of four basins off the west coast of British Columbia) could contain 25.9 trillion cubic feet of natural…
Summary of a recent study of seismic airgun survey noise propagation in Queen Charlotte Basin
Alexander MacGillivray
In recent years there has been renewed interest in offshore oil and gas exploration and development in British Columbia. Particular attention has focused on the Queen Charlotte Basin (QCB) where the largest hydrocarbon deposits are believed to be located. Potential oil and gas exploration in this area will expose marine…
The Pacific Coast Integrated Management Area: Moving Towards Modern Ocean Management
Joy Hillier and Dale Gueret
The Pacific North Coast Integrated Management Area (PNCIMA) is one of five pilot Integrated Management Planning initiatives being led by the federal Department of Fisheries and Oceans in Canada. Based primarily on ecological characteristics including oceanic currents, physiographic considerations, the PNCIMA extends from the Canada-Alaska border in the north to…
Benefiting from 3-D AVO by using adaptive supergathers
Yong Xu and Satinder Chopra
3-D surface seismic data has many useful features that include fine sampling, better resolution, better and accurate visualization and volume interpretation of structural and stratigraphic features. All these help in providing a vivid picture of the geologic features in the subsurface. These characteristic qualities of 3D seismic data, coupled with…
Long–spreadlength approximations to NMO function for a multi-layered subsurface
Emil Blias
Conventional approximations of the NMO function assume a modest offset/depth ratio. Similarly conventional velocity analysis uses a hyperbolic approximation for the reflection traveltimes.
... 2006 Honorary Membership Recipient: Perry Kotkas
Citation by Geoffrey Wilcox
... U.K. North Sea Case Study: Seismic Interpretation Workflow for Field Development Studies and Enhanced Exploration Prospect Risking
Rainer Tonn and Kester Waters
The UKCS Central Graben plays host to some of the most prolific of the Palaeocene and Eocene North Sea turbidite systems. The interval can be broadly sub-divided into three main fan building episodes, namely Andrew/Lista, Forties/Sele and the younger Tay Fan system. This study focuses on the middle to upper…
Curvature and Iconic Coherence – Attributes adding value to 3D seismic data interpretation
Satinder Chopra
Horizon-based curvature attributes have been used in seismic data interpretation for predicting fractures ever since the correlation of curvature values to fractures measured on an outcrop was demonstrated. Different measures of curvature (Gaussian, strike, dip, etc…) have been shown by different workers to be highly correlated with fractures. However, all…
Imaging near-surface permafrost structure and characteristics with Ground-Penetrating Radar
Brian Moorman, Stephen Robinson, Margo Burgess
Three important parameters that need to be quantified for many permafrost studies are the location of ice in the ground, the position of thermal interfaces, and spatial variations of the water content in the active layer. The data from over 100 investigations in permafrost regions demonstrate that ground-penetrating radar (GPR)…
Defusing Africa’s Killer Lakes
Kevin Krajick
In a remote region of Cameroon, an international team of scientists takes extraordinary steps to prevent the recurrence of a deadly natural disaster.
... DHI / AVO best practices, methodology and applications
William Fahmy
In 1997, ExxonMobil developed a company wide best practice to evaluate and understand the risk for DHI-dependent plays. Within this best practice, a robust controlled amplitude/ phase processing stream, rigorous analysis, and a calibrated DHI-rating system using both data quality and observed DHI characteristics were designed. The methodology is not…
Risk Management in Seismic Survey Design or “You Don’t Know that You Don’t Know?”
Paul Thacker and Les Corper
Imagine you’re at the controls of an airplane. From movies and games, we all know how very easy it is to take off. You simply taxi to the end of the runway, line up, push the engine throttles forward, pull back gently on the stick and there you are, flying.…
