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dc.contributor.authorSun, Bai Chun
dc.contributor.authorBona, Andrej
dc.contributor.authorZhou, B.
dc.contributor.authorKing, A.
dc.contributor.authorDupuis, Christian
dc.contributor.authorPevzner, Roman
dc.identifier.citationSun, B.C. and Bona, A. and Zhou, B. and King, A. and Dupuis, C. and Pevzner, R. 2013. Seismic while drilling experiment with diamond drilling at Brukunga, South Australia, in Proceedings of the 23rd International Geophysical Conference and Exhibition, Aug 11-14 2013. Melbourne: CSIRO.

Seismic-While-Drilling (SWD) utilises drill bit vibrations as a seismic source and receivers at the surface or in a borehole to acquire reverse VSP data. The basic processing technique is based on cross correlation to generate active shot-gather-like profiles. The successful implementation of SWD will yield time-depth information and image around the drill bit, which can aid drilling and geological understanding of the area. To study the feasibility of using diamond impregnated drill bits for seismic-while-drilling, we conducted a small pseudo 3D SWD experiment at Brukunga, South Australia. It has been used to investigate the signals generated from diamond drilling, and study the potential to use a drill bit as a seismic source. The drill bit energy for seismic imaging is influenced by the rig power setting, and the state of the drill bit (new or worn bit). The experiment shows that normally the diamond drilling frequency band is wide with strong discrete peaks, however sometimes due to changes in the drilling mode, e.g., increase or decrease the drilling power, the frequency spectrum can be smoothed. The strong peaks in the spectrum mean strong periodicity of the signal and as such, the signals do not lend themselves to standard cross correlation. Thus, we use a generalised cross correlation that produces results similar to an active shot gather-like profile.

dc.titleSeismic while drilling experiment with diamond drilling at Brukunga, South Australia
dc.typeConference Paper
dcterms.source.titleASEG Extended Abstracts 2013
dcterms.source.seriesASEG Extended Abstracts 2013
dcterms.source.conference23rd International Geophysical Conference and Exhibition
dcterms.source.conference-start-dateAug 11 2013
curtin.departmentDepartment of Exploration Geophysics
curtin.accessStatusFulltext not available

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