Resolving Structural Uncertainty using DAS VSP Survey in Central Australia

Konstantin Galybin; Cameron Jones; Frank Nicholson; Ryan Chapman; Rob Twigg

doi:10.1080/22020586.2019.12073112

2nd Australasian Exploration Geoscience Conference: Data to Discovery

ISSN: 2202-0586
E-ISSN:

oa Resolving Structural Uncertainty using DAS VSP Survey in Central Australia
Authors Konstantin Galybin^a, Cameron Jones^b, Frank Nicholson^c, Ryan Chapman^d and Rob Twigg^e
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^a Schlumberger, Australia, Perth, [email protected] ^b Beach Energy Ltd, Adelaide, [email protected] ^c Beach Energy Ltd, Adelaide, [email protected] ^d Schlumberger Australia, Perth, [email protected] ^e Schlumberger Australia, Melbourne, [email protected]
Publisher: Australian Society of Exploration Geophysicists
Source: ASEG Extended Abstracts, Volume 2019, Issue 2nd Australasian Exploration Geoscience Conference: Data to Discovery, Dec 2019, p. 1 - 4
DOI: https://doi.org/10.1080/22020586.2019.12073112
- Published online: 01 Dec 2019

Abstract

Summary

Borehole seismic technology provides an efficient way to image the subsurface in high-resolution, through 3D, Walkaway or Offset VSPs. Whilst acquisition time of the conventional VSP survey is less than surface seismic, such VSP surveys can take hours or even days to acquire. With the proliferation of the fibre-optic, Distributed Acoustic Sensing technology, the acquisition time can be slashed to just a few minutes.

The Bauer field in central South Australia is the site of the major borehole seismic survey, comprising Walkaway and Offset VSPs in multiple wells, aimed at reducing structural uncertainty. The Offset VSP data presented in this paper were acquired using Schlumberger’s hDVS service. The processing results show that even at large offsets, DAS technology can be successfully applied to image the subsurface.

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References

Frignet, B., and Hartog, A., 2014, Optical vertical seismic profile on wireline cable: SPWLA 55th Annual Logging Symposium, May 18–22.
Hardage, B. A., 1991, Vertical seismic profiling: Pergamon Press.
Hartog, A.H., Kotov, O.I., and Liokumovich, L.B., 2013, The optics of distributed vibration sensing: Second EAGE Workshop on Permanent Reservoir Monitoring, Stavanger, Norway, Expanded Abstracts.
Kimura, T., and Galybin, K, 2017, Borehole seismic while sampling using FO technology: EAGE 79 Paris, Extended Abstracts.
Kimura, T., Lees, G., and Hartog, A., 2016, Optical fiber vertical seismic profile using DAS technology: Japan Geoscience Union Meeting 2016 (RAEG 2016), Chiba, Japan, Extended Abstract.
Leaney, W.S., 1990, Parametric wavefield decomposition and applications: 60th Meeting, SEG, San Francisco, Expanded Abstract, 1097-1100.
Mateeva A., Lopez J., Potters H., Mestayer J., Cox B., Kiyashchenko D., Wills P., Grandi S., Hornman K., Kuvshinov B., Berlang W., Yang Z. and Detomo R., 2014, Distributed Acoustic Sensing for Reservoir Monitoring with Vertical Seismic Profiling, Geophysical Prospecting, 62 (4), pp 679-692.
Varkey, J., Mydur, R., Sait, N., et al., 2008, Optical fiber cables for wellbore applications: US7324730 B2.

/content/journals/10.1080/22020586.2019.12073112

Article Type: Research Article

Keyword(s): DAS; hDVS; Imaging; Offset VSP

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