Using Long Sweep in Land Vibroseis Acquisition

Egreteau, A.; Gibson, J. B.; Lin, Forest; Meunier, J.

doi:10.3997/2214-4609.201400274

Cited by 1 publication

(2 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Long sweeps of the length

n \times L

can be recorded faster than the equivalent of n sweeps of the length, L , because the required listening time and dead time of the DAS readout unit has to be counted only once, instead of n times for the other case (Egreteau et al . ).…”

Section: Distributed Acoustic Sensing–vertical Seismic Profiling Expementioning

confidence: 97%

“…The listening time was 5 seconds, the dead time of the DAS interrogator unit (time interval between the end of one recording and the beginning of the next one) was 5 seconds as well. Long sweeps of the length n × L can be recorded faster than the equivalent of n sweeps of the length, L, because the required listening time and dead time of the DAS readout unit has to be counted only once, instead of n times for the other case (Egreteau et al 2009).…”

Section: I S T R I B U T E D a C O U S T I C S E N S I N G -V E R T I C A L S E I S M I C P R O F I L I N G E X P E R I M E N T A T T H Ementioning

confidence: 99%

See 1 more Smart Citation

Vertical seismic profiling using a daisy‐chained deployment of fibre‐optic cables in four wells simultaneously – Case study at the Ketzin carbon dioxide storage site

Götz

Henninges

Reinsch

2018

Geophysical Prospecting

View full text Add to dashboard Cite

The geological storage of carbon dioxide is considered as one of the measures to reduce greenhouse gas emissions and to mitigate global warming. Operators of storage sites are required to demonstrate safe containment and stable behaviour of the storage complex that is achieved by geophysical and geochemical monitoring, combined with reservoir simulations. For site characterization, as well as for imaging the carbon dioxide plume in the reservoir complex and detecting potential leakage, surface and surface‐borehole time‐lapse seismic monitoring surveys are the most widespread and established tools. At the Ketzin pilot site for carbon dioxide storage, permanently installed fibre‐optic cables, initially deployed for distributed temperature sensing, were used as seismic receiver arrays, demonstrating their ability to provide high‐resolution images of the storage formation. A vertical seismic profiling experiment was acquired using 23 source point locations and the daisy‐chained deployment of a fibre‐optic cable in four wells as a receiver array. The data were used to generate a 3D vertical seismic profiling cube, complementing the large‐scale 3D surface seismic measurements by a high resolution image of the reservoir close to the injection well. Stacking long vibro‐sweeps at each source location resulted in vertical seismic profiling shot gathers characterized by a signal‐to‐noise ratio similar to gathers acquired using geophones. A detailed data analysis shows strong dependency of data quality on borehole conditions with significantly better signal‐to‐noise ratio in regions with good coupling conditions.

show abstract

“…Long sweeps of the length

n \times L

Section: Distributed Acoustic Sensing–vertical Seismic Profiling Expementioning

confidence: 97%

Section: I S T R I B U T E D a C O U S T I C S E N S I N G -V E R T I C A L S E I S M I C P R O F I L I N G E X P E R I M E N T A T T H Ementioning

confidence: 99%

Vertical seismic profiling using a daisy‐chained deployment of fibre‐optic cables in four wells simultaneously – Case study at the Ketzin carbon dioxide storage site

Götz

Henninges

Reinsch

2018

Geophysical Prospecting

View full text Add to dashboard Cite

show abstract

Using Long Sweep in Land Vibroseis Acquisition

Cited by 1 publication

References 5 publications

Vertical seismic profiling using a daisy‐chained deployment of fibre‐optic cables in four wells simultaneously – Case study at the Ketzin carbon dioxide storage site

Vertical seismic profiling using a daisy‐chained deployment of fibre‐optic cables in four wells simultaneously – Case study at the Ketzin carbon dioxide storage site

Contact Info

Product

Resources

About