Articles

Article Image
April 2020

Dedication

We would like to thank the over 26,000 RNs employed by Alberta health Services; over 11,000 doctors; and more than 5,600 EMS professionals that are working on the frontlines of this pandemic.

...
Article Image
April 2020

Introduction to the April 2020 Focus:  Geomodelling and Geosteering

Devik Naidu

The April edition features compelling articles on geomodelling and geosteering. These articles were selected by the RECORDER Committee based upon the expertise of the authors and we wanted to feature their outstanding work in this edition.

...
Article Image
April 2020

Improving Your Forward Vision – How 4D Geosteering Software Improves Well Placements by Proactively Catching Deviations Early and Reducing Drilling Risks

Rocky Mottahedeh

In geosteering, to dynamically and confidently drive forward with confidence in the target with minimum doglegs, we need to have a real-time solution that not only allows us to correlate to the last survey point (how we got here), but which also provides the latest calculated 3D path to where…

Article Image
April 2020

Forward Vision for Geosteering and Mitigating Risk by Volumetric Simulation of Well Drainage and Frac Shadows

Rocky Mottahedeh

Creating value and planning for success in field development operations is a multi-disciplinary process that needs both a learning and an integrative approach to optimize capital. Technological advantage for producers comes from implementing just-in-time processes continuously with software systems that do the hard work in the background to provide Dynamic…

Article Image
April 2020

Geosteering – The Basics for Geophysicists

Curtis James

Gone are the days of old, when geosteering relied solely on drill cuttings. Advancements in drilling technologies have pushed laterals longer and deeper, and with faster drilling times. As these technologies advanced, so did the need for more accurate, real-time data from downhole, so the geosteering technologies and data collection…

Article Image
April 2020

Oil below $20 USD per barrel – what caused this?

Brian Wm. Schulte

The following is a tutorial on the economics and financing of oil and gas. It looks at the market over the last two years, how several factors have contributed and the role that the following have played into it.

...
Article Image
April 2020

Determination of Local Magnitude for Induced Earthquakes in the Western Canada Sedimentary Basin: An Update

Alireza Babaie Mahani and Honn Kao

With the increased seismicity rate in the Western Canada Sedimentary Basin (WCSB), accurate determination of local magnitude (ML) using data from regional seismograph networks is a vital task for induced seismicity monitoring and mitigation of seismic hazard. Specific mitigation strategies have been put in place by the regulators when the…

Article Image
February 2020

Introduction to February Focus: Geophysics in Québec

Jean M. Legault and Oliver Kuhn

In the same way that Quebec is rich in mineral and energy resources, it has a rich and long history in exploration geophysics. For most of us that live and work outside of Quebec, there is a level of mystery with much of the work that goes on there, as…

Article Image
February 2020

Mining exploration geophysics in Quebec: Over 50 years of innovation

Marc Boivin

The province of Quebec has a long and successful history in mining exploration discoveries, and exploration geophysics has played a significant role since the beginning. nnovative people and their ideas over all those decades were essential to the contribution of geophysics in Quebec and elsewhere in the world.

...
Article Image
February 2020

Applied geophysics in a very deep mine context: Example of the >3 km deep, LaRonde Penna mine, Abitibi Greenstone Belt, Quebec

L. Cheng, X. Dai, MC Diallo, C. Liu, N. Foudil-Bey, J. Collins, P. Bérubé, R. Dubuc, D. Fortin, M. Legault, P. Mercier-Langevin, B. Abbassi

...
Article Image
February 2020

Exploring for Magmatic Ni-Cu-PGE Ore Bodies with Magnetics, Electromagnetics and Reflection Seismic in a Challenging Geological Setting in Nunavik, QC

Circé Malo-Lalande, Maxim Boisvert, Erick Adam and Christopher Grondin

Hunting for Ni-Cu-PGE ore bodies is no easy task, especially in the harsh conditions at the Nunavik Nickel Project in Nunavik, northern Quebec. As the near-surface deposits are found, better tools and sound geological understanding are needed to find deeper deposits.

...
Article Image
February 2020

A processing strategy for high-resolution seismic imaging of thin unconventional reservoirs: application to the Macasty Formation, Anticosti Island, Canada

Mathieu J. Duchesne, Zhuoheng Chen, Denis Lavoie, Nicolas Pinet and Virginia I. Brake

...
Article Image
February 2020

Science and Scientists, Fiction Writing and Star Trek

Lee Hunt

Writing an engaging novel is challenging. Being a good scientist is also difficult because good science requires almost inhuman discipline and humility.

...
Article Image
December 2019

Introduction to October/December Focus: Geophysics in British Columbia and the North

Steve Jensen and Elizabeth Atkinson

...
Article Image
December 2019

Seismic and Surface Deformation: Insights from Qualitative Comparisons over a SAGD Reservoir in Alberta

Dennis Ellison

Interferometric Synthetic Aperture Radar (InSAR) is becoming a more desirable method to monitor surface deformation, in particular, ground heave in the oilsands related to thermal SAGD operations. Devon had licensed data from TRE-Altamira using the RADARSAT-2 satellite, which collects roughly 9 usable images each year to calculate deformation. Surface deformation…

Article Image
December 2019

Automating seismic data analysis and interpretation

Sergey Fomel

...
Article Image
December 2019

Aftershock Decay Rate of Large Injection-Induced Earthquakes in Northeast British Columbia: A Case Study for Two sequences in the Montney Play

Amir Mansour Farahbod and Honn Kao

We investigated the aftershock decay rate of the two largest injection-induced earthquakes (IIEs) ever recorded in northeast British Columbia that occurred on August 17, 2015 (MW (moment magnitude) 4.6, ML (local magnitude) 4.9) and November 30, 2018 (MW 4.5, ML 4.7). These earthquakes are temporally and spatially correlated with hydraulic…

Article Image
December 2019

Seismic Attenuation in Northeast British Columbia Using the Coda Q Method

Amir Mansour Farahbod, John F. Cassidy, Honn Kao

Coda-wave attenuation is an important criterion for the study of elastic properties of the lithosphere. In this article, attenuation is measured in northeast British Columbia using records from 9 new stations of the Canadian National Seismic Network (CNSN). Our dataset is comprised of 402 earthquakes recorded between August 2013 and…

Article Image
December 2019

Mapping the Distribution of Permafrost using the Resolve Airborne EM System: Klondike Highway, Yukon, Canada

Mel Best, Isaac Fage and Shawn Ryan

Changes in permafrost distribution in northern regions of North America are related to hydrogeological processes, climate, and ecosystems. In particular, increased thawing due to warmer temperatures alters the permafrost distribution. This can lead to enhancement of surface-groundwater interactions that contribute to surface flow which leads to differential melting of the…

Article Image
December 2019

Mapping How Geophysics Is Used To Understand Geohazards In Potash Mines

Craig Funk, James Isbister, Todd Leblanc, Randy Brehm

The Saskatchewan potash industry is over 60 years old now and has survived and been profitable thanks in part to geophysics. The potash deposits in Saskatchewan are globally unique, in that they are very large, flat and relatively unaltered, which permits productive low-cost mining. However, water inflows are a serious…