Nazarbayev University
School of Mining & Geosciences

School of Mining & Geosciences


NU SMG Distinguished Lecture Series

April 26, 2022
SMG for publications

Speaker: Roman Pevzner Professor of School of Minerals, Energy and Chemical Engineering, Curtin University

About: A special online lecture/workshop on use of fiber optic sensors in monitoring operations.  While applications abound, we are particularly interested in monitoring of subsurface carbon storage technologies with pending field pilots on the horizon in Kazakhstan.

Date: April, 26 

Time: 03:00 pm (Nur-Sultan time)

Venue: ZOOM 


Distributed acoustic sensing for seismic imaging and monitoring

Distributed acoustic sensing (DAS) is a technology allowing use of optical fibre as a seismic sensor by sending a series of laser pulses and analysing the scattered light coming back from different sections of fibre. The technology does have strong disruptive potential in active and passive seismic imaging and, especially, monitoring, as fibre optic cables converted to thousands of receivers can be installed in various locations and used to acquire data continuously for an extended period of time. The cables are slimmer, do not have any active electronic components and can withstand harsh downhole conditions, making DAS attractive in borehole seismic operations. In this presentation, we discuss basics of the technology and illustrate it using several case studies from Australian CCS projects. These includes examples of downhole time-lapse DAS surveys for monitoring of small-scale CO2 injection and leakage detection. We also demonstrate how the distributed fibre optic sensing can be used to transform a well to a permanent receiver array during the abandonment process.



Date :
April 26, 2022
Time :
Organizer :
NU School of Mining and Geosciences
Venue :

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