Articles

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March 2019

Introduction to March Focus: Atlantic Region

Omid Aghaei

The Canadian East Coast, featuring the interplay between heatflow, stretching, faulting, and synrift sedimentation, is the focus of our March issue. We have received five major contributions: two from academia and three from industry. 

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March 2019

Ocean Bottom Seismometer Instrumentation in Canada

Mladen R. Nedimović

Canada belongs to an elite club of a handful of countries that successfully developed and used autonomous ocean-bottom seismometers (OBSs). Yet, with the decommissioning of the Canadian short period OBS pool in 2015 due to old age and retirement of researchers with OBS knowledge, Canada was on the verge of…

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March 2019

Atlantic Rifted Margin Studies from the Edge: Geophysical Research at Memorial University

J. Kim Welford, Alison E. Malcolm, Colin G. Farquharson, and Jeremy Hall

Located in Canada’s easternmost province of Newfoundland and Labrador, researchers at Memorial University are ideally positioned to undertake geophysical research along the country’s Atlantic margins where offshore exploration is still very much at the frontier stage, spurred on by world-class discoveries and production in the Jeanne d’Arc and surrounding basins.…

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March 2019

Exploration Initiatives, Offshore Regions, Newfoundland and Labrador, Canada

Deric E.L. Cameron, Erin Gillis, Victoria Mitchell, and Richard Wright

Exploration initiatives over the past decade have led to renewed interest in exploration in the slope and deep-water regions of offshore Newfoundland and Labrador, Canada. New multi-client regional 2D seismic surveys (2011-2018), guided initially by satellite slick mapping, have provided approximately 170,000 line kms of long offset, broadband 2D seismic…

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March 2019

Frontier Exploration: Considerations When Developing a Predictive Rock Physics Framework

Nick Huntbatch, Alsing Selnes, Neil Whitfield

Exploration in frontier basins is challenging; subtle targets, large seismic datasets, sparse well penetrations, and many unknowns. There is an obvious requirement for interpretations to be robust, but also delivered on a commercial timeframe.

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March 2019

Building a Geological-Pressure Model Incorporating Global Analogues

Sam Green and Alexander Edwards

To de-risk a frontier area properly requires establishing the geological framework, and this is where seismic data can provide important controls on the basin framework by helping to understand features such as stratigraphic thicknesses, large-scale structural features such as faults and folds, and vertical and lateral velocity variations. To help…

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March 2019

Repositioning Seismic Technologies and Services in a Dynamic Upstream Oil and Gas Industry

CAGC Executive

In September of 2018 the upcoming winter season quickly went from decent to dreadful. With the widening of the Oil Differentials, potential projects were cancelled and the outlook for 2019 began to look like the bottom experienced back in 2016. The CAGC commissioned the following op-ed in order to look…

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March 2019

An Unconventional View of Geoscience

David Gray

hale oil and gas production and “fracking” are with us to stay. We geoscientists need to understand how we can contribute to the “shale revolution.”

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January 2019

Introduction to January Focus: Research Across Canada

Katie McLean and Germán Rodríguez-Pradillar

There´s no better way to kick off the year than with fresh ideas to expand our knowledge and improve our skills as exploration geoscientists. To help you out with that, we compiled in this special edition some exciting contributions from various researchers from all across Canada that cover some state-of-the-art…

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January 2019

Skeletonization and Empirical-Mode Decomposition of 2-D Potential-field Images

Le Gao and Igor B. Morozov

The volumes of modern gridded data collected by the geophysical exploration industry are often large and can benefit from methods for image decomposition, pattern analysis, and interpretation. Automated pattern-recognition methods can be useful for both seismic and potential-field images. In both of these cases, it is important to extract quantitative…

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January 2019

Mechanics of Seismic Q

Igor B. Morozov

Seismic- wave attenuation and dispersion are studied in most geophysical curricular and broadly used in both academic and applied research. Applications of these concepts include identification of gas reservoirs and chimneys from frequencydependent seismic amplitudes, analysis of frequency dependent P- and S-wave velocities, interpretation of the effects of porosity and…

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January 2019

CCArray and EON-ROSE: Emerging Pan-Canadian Multidisciplinary Research Initiatives

David W. Eaton, Katherine Boggs, Thomas S. James, Jason C. Droboth, Pascal Audet

The Canadian Cordillera – the mountainous regions of western Canada – represents a world-class natural laboratory for exploring the interconnected Earth systems that are critical to our understanding of major scientific grand challenges. The Canadian Cordillera Array (CCArray) is a proposed international scientific initiative, spearheaded by the creation of a…

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January 2019

Impact Craters in Seismic Data

Amanda Obodovsky

Since the acquisition of seismic data in the 1960’s, impact structures have been seen in seismic data. These are structures that were created earlier in the Earth’s history from a meteorite impact and have since been buried underground. While many of these unique structures are known to be located in…

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January 2019

Airborne EM: Peace Project, British Columbia, Canada

Melvyn Best, Anne-Sophie Høyer, Flemming Jørgensen, Antonio Menghini, Carlos Salas, Andrea Viezzoli

Over the last decade, Airborne Electromagnetics (AEM) has become a widespread tool for groundwater applications. Besides the demand of acquiring good quality AEM data, there are two other fundamental steps to obtain a robust geological and hydrogeological model: accurate processing/inversions and advanced interpretation.

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December 2018

Introduction to December Focus: The Banff 2018 International Induced Seismicity Workshop

Paige Mamer

The Banff 2018 International Induced Seismicity Workshop took place October 24-27, 2018 and was hosted jointly by the Canadian Induced Seismicity Collaboration and the Canadian Society for Unconventional Resources. It featured an international and diverse audience consisting of members of government and academia as well as attendees from the oil…

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December 2018

Real-time Induced Seismicity Forecasting and Risk Management Utilizing Research-grade Seismic Catalogs

Sepideh Karimi and Dario Baturan

Practical management of induced seismicity risk and effective mitigation approaches are crucial to oil and gas operations. Effective risk management procedures benefit from an accurate forecast of the largest potential magnitude event in near real-time, allowing the adjustment of operational parameters to reduce the probability of a felt or damaging…

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December 2018

Managing Induced Seismicity in Canbriam’s Altares Field in the Montney Formation, N.E. British Columbia – An Update

John Nieto, Brad Bialowas, Bogdan Batlai, and Graham Janega

The Montney formation in British Columbia and Alberta has gained prominence in recent years due to the exploration and production boom which has yielded more than 3.5 bcf/d in production output and in excess of 440 TCF of reserves. It is one of the largest unconventional plays in North America,…

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December 2018

Roy Oliver Lindseth

To many of us, Roy Lindseth was our geophysical father. He was a scientific visionary, entrepreneur, respected advisor, and kind mentor to many geophysicists, both young and experienced. He encouraged us to do great things while taking care of small details. Roy worked tirelessly for the science, application, and people…

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December 2018

Analyzing a Seismic Pitfall – Pliocene Superdeep High Amplitude Anomaly, Offshore, Bay of Bengal, India

Niranjan C. Nanda

A wildcat was drilled on a Pliocene superdeep seismic high amplitude anomaly in 1050 m of water to explore the hydrocarbon potential in the bathyal zone of Bay of Bengal. The well penetrated a thick monotonous section of 1400 m of siliciclastic mudrocks without encountering the prognosticated hydrocarbon sands, resulting…

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December 2018

Applied Geoscience in Academia – Quo Vadis?

Larry Lines

The following article is based on a talk that I gave to a group of geoscientists at the 2017 Geoconvention in Calgary, Alberta. It included a series of observations that I have made regarding the state of applied geoscience at Canadian universities. While the talk was apparently not controversial nor…