1887

Abstract

Summary

A permanent geophone array along with a fibre optic distributed acoustic sensing (DAS) array were deployed at the CO2CRC Otway Project site in order to conduct seismic monitoring of a CO2 plume during a small-scale injection test. This study aims to assess the ability for a permanent geophone array to overcome issues related to different acquisition (receiver) designs, high ambient noise level and seasonal variations in the near surface, as well as to test the DAS system for performing cost-effective time lapse seismic measurements. The acquisition of 3D seismic data is performed for this purpose using ∼3000 vibroseis source points. We show the preliminary results of seismic reflection imaging conducted using DAS data. We observe the differences in performance between a standard commercially available tactical fibre optic cable and a custom helically wound cable. The results of this study and the workflows established will be used for processing a complete 3D seismic dataset acquired with a DAS array before being compared to a conventional geophone array.

Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.201601497
2016-05-31
2020-04-09
Loading full text...

Full text loading...

References

  1. Daley, T.M., Freifeld, B.M., Ajo-Franklin, J., Dou, S., Pevzner, R., Shulakova, V., Kashikar, S., Miller, D. E., Goetz, J., Henninges, J. and Lueth, S.
    [2013] Field testing of fiber-optic distributed acoustic sensing (DAS) for subsurface seismic monitoring. The Leading Edge, 32(6), 699–706.
    [Google Scholar]
  2. Parker, T., S.Shatalin, and M.Farhadiroushan
    [2014] Distributed Acoustic Sensing – a new tool for seismic applications. First Break, 32, 61–69.
    [Google Scholar]
  3. Pevzner, R., M.Urosevic, E.Caspari, R.J.Galvin, M.Madadi, T.Dance, V.Shulakova B.Gurevich, V.Tcheverda, and Y.Cinar
    [2013] Feasibility of time-lapse seismic methodology for monitoring the injection of small quantities of CO2 into a saline formation, CO2CRC Otway project. Energy Procedia, 37, 4336–4343.
    [Google Scholar]
  4. Shulakova, V., R.Pevzner, J.Christian Dupuis, M.Urosevic, K.Tertyshnikov D.E.Lumley, and B.Gurevich
    [2015] Burying receivers for improved time-lapse seismic repeatability: CO2CRC Otway field experiment. Geophysical Prospecting, 63(1), 55–69.
    [Google Scholar]
http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201601497
Loading
/content/papers/10.3997/2214-4609.201601497
Loading

Data & Media loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error