LIVE WEBINAR – Bauer Walkaway Vertical Seismic Profile Project: Reducing Depth Uncertainty with Distributed Acoustic Sensing
Tuesday, 9 March @ 11:00 am - 12:00 pm (Australia/Perth time)Free – $10
Kindly supported by Rock Flow dynamics
This live webinar will take place at:
11am – Perth
12.30pm – Darwin
1pm – Brisbane
1:30pm – Adelaide
2pm – Canberra, Hobart, Melbourne, Sydney
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Tickets are free for members (please log in to see this) and $10 for non members.
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Bauer Walkaway Vertical Seismic Profile Project: Reducing Depth Uncertainty with Distributed Acoustic Sensing
Presented by Konstantin Galybin
Distributed Acoustic Sensing (DAS) provides an unrivalled ability to extend the coverage of Vertical Seismic Profile (VSP) surveys such as Walkaways, Offset VSPs or 3D VSPs, away from the wellbore. In addition to the increased coverage, DAS technology has the ability to significantly reduce acquisition time, whilst keeping the number of tools downhole to a minimum. This presentation shows an example of a field-scale borehole seismic survey acquired in the Bauer field in 2019. The survey comprised nine Walkaway VSP lines, four Rig Source VSPs and an Offset VSP. Both conventional accelerometer and DAS data were acquired and a direct comparison between the results has been made. It shows that the Walkaway DAS VSP dataset successfully increased the coverage away from the wellbore by a factor of two. The derived DAS images were also shown to tie with subsequent drilling, reducing the uncertainty in the interpretation and improving understanding of the geologic structure.