Variable-depth, towed-streamer acquisition delivers
improved seismic imaging
GATWICK, April 23, 2012-WesternGeco announced today the
introduction of the ObliQ* sliding-notch broadband
acquisition and imaging technique, which enhances
low-frequency content of marine seismic data without
compromising high frequencies.
The ObliQ technique increases the penetration depth of
seismic imaging and helps geoscientists extract rock
properties from seismic data. Optimized seismic bandwidth
is achieved by combining variable streamer depth
acquisition with a proprietary deghosting methodology and a
newly developed broadband seismic source. This proprietary
processing approach is applied early in the sequence,
making the data suitable for both time- and depth-domain
"As the search for hydrocarbons moves to evermore
challenging environments, the use of such advanced imaging
technologies is becoming increasingly important for
successful exploration programs," said Pennelope Ratcliffe,
vice president, Marine, WesternGeco. "The ObliQ technique
provides broadband data for exploration purposes and
complements the well-established WesternGeco DISCover*
broadband technology, which provides high-fidelity,
full-offset broadband data using a proprietary dual-level
Enabled by the Q-Marine* point receiver marine seismic
system, the ObliQ technique can also be used with other
WesternGeco technologies such as Coil Shooting* and
Dual-Coil Shooting* full-azimuth acquisition to combine
broad bandwidth with full-azimuth, long-offset acquisition.
This combination is particularly important for imaging
below complex structures such as subsalt and sub basalt.
For more information, visit www.slb.com/obliq.
Schlumberger is the world's leading supplier of technology,
integrated project management and information solutions to
customers working in the oil and gas industry worldwide.
Employing more than 113,000 people representing over 140
nationalities and working in approximately 85 countries,
Schlumberger provides the industry's widest range of
products and services from exploration through production.
Schlumberger Limited has principal offices in Paris,
Houston and The Hague, and reported revenues of $39.54
billion in 2011.www.slb.com.
*Mark of Schlumberger
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