Recent Articles

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June 2016

Introduction to June Focus: DAS/Borehole Geophysics

Welcome to this special edition of the RECORDER with a focus on Distributed Acoustic Sensing (DAS) and borehole geophysics. There are four papers on DAS, in particular with application to Vertical Seismic Profiles (VSPs) and one on DAS for microseismic. Since DAS was first used as a downhole optic sensing…

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June 2016

The use of fiber-optic sensing to efficiently acquire vertical seismic profiles

Conventional vertical seismic profiles (VSPs) are recorded by lowering receivers, usually geophones but increasingly accelerometers, contained within shuttles down a well where they are anchored to the borehole wall using clamps or bowsprings. A seismic source (often located adjacent to the well-head, i.e. at zero-offset) is then activated and data…

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June 2016

Comparing DAS and Geophone Zero-Offset VSP Data Sets Side-By-Side

Zero-offset vertical seismic profile (VSP) data were acquired by both retrievable (wireline) geophones and distributed acoustic sensing (DAS) on cemented-in fiber-optic cable. Side-by-side comparisons of these data sets are shown at several steps in the processing flow to help understand the advantages of each of these data types. Good data…

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June 2016

Simultaneous Acquisition of Distributed Acoustic Sensing VSP with Multi-mode and Single-mode Fiber-optic Cables and 3C-Geophones at the Aquistore CO2 Storage Site

A dynamite 3D VSP survey, a Vibrator 2D VSP survey and related calibration surveys at the Aquistore CO2 storage site in Saskatchewan served as a technology test for distributed acoustic sensing (DAS). DAS data was acquired as a vertical seismic profile (VSP) on two codeployed fibers, one single-mode (SM) and one…

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June 2016

Field trials of distributed acoustic sensing for reservoir delineation with VSP

A most recent fiber-optic based technology that has been adopted in VSP acquisition is distributed acoustic sensing (DAS), where the fiber-optic cable in the well is the sensor and a typical seismic source is shooting on the surface into the reservoir formation. This technology enables a fiber-optic cable to be…

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June 2016

DAS Microseismic

Fiber-Optic Distributed Acoustic Sensing (DAS) applied to microseismic has the potential to significantly change the cost structure and quality of microseismic data acquisition. When a fiber-optic cable is deployed down-hole, it can be used for many purposes: hydraulic fracture monitoring, flow monitoring, VSPs and microseismic. Economies of scale are achieved…

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1031 ARTICLES

Recent Interviews

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June 2016

An interview with Peter Tertzakian

Energy economist, The Financial Post columnist and author of two best-selling books, A Thousand Barrels a Second and The End of Energy Obesity.

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May 2016

An interview with Matt Golombek

Jet Propulsion Laboratory (JPL) Project Scientist for the Mars Exploration Rover and working on the NASA’s InSight discovery program mission.

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April 2016

An interview with Dr. A. Easton Wren

Geoscientist, founder of Petrel Consultants, AAPG Distinguished Lecturer, and past producer and host of CFAC-TV Calgary’s Science Spectrum documentary series.

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March 2016

An interview with Arthur McDonald

Arthur McDonald is the co-winner (shared by Takaaki Kajita of Japan) of the 2015 Nobel Prize in Physics for his work on subatomic particles called neutrinos.

173 INTERVIEWS