Industry Article: Drillers Seek a Downhole Source for Seismic While Drilling

Sparker technology research effort amps up

Drillers Seek a Downhole Source for Seismic While Drilling
Publication: Offshore
Publication Date: 03/01/2013

Seismic while drilling has been best received in deepwater exploration wells and highly deviated development/exploration wells, according to Neil Kelsall, seismic domain champion, Europe, Caspian, and Africa, at Schlumberger, which launched its seismicVISION seismic-while-drilling service 10 years ago. The technology has already played a role in presalt and subsalt plays, providing real-time prediction of the depth of targets ahead of the bit. In exploration wells, especially wildcats, drillers have found it reassuring to receive reliable updates on the expected target depth. And in highly deviated/horizontal wells, it is now a routine process to acquire data with seismic while drilling without rig time. Offshore spoke recently with Kelsall about the advantages and challenges of seismic while drilling and where the technology is headed.

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