Dovetail™ is an efficient streamer acquisition solution, especially where there is significant and unpredictable feathering. Dovetail significantly reduces the need for infill while remaining within bin fold specifications, leading to reduced survey time and HSE exposure and faster data receipt, with no degradation of data quality.
Dovetail combats poor far-offset fold coverage due to extreme feathering, caused by such things as strong local currents etc, by using three interlinked components:
Since higher frequencies are attenuated at longer offsets and greater depths, Dovetail allows larger interpolation distances at longer offsets by increasing the streamer separation towards the tail of the streamers. Using a de-aliased anti-leakage, irregular Fourier transform and an advanced algorithm for the interpolation means that there is no degradation of the data.
REVIVE5D uses the true source and receiver locations of the data, preserves amplitudes across offsets and azimuths accurately, and thus honours the true 3D character of the data (important in areas of significant feather).
It is impossible to tell where the data was acquired using “Dovetail” and interpolation, or where using conventional acquisition with over 40% infill. The final fold after interpolation is the same for both the conventional and the Dovetail acquisition.
Better 3D coverage, improved 4D repeatability, reduced infill. Integrated streamer control with acoustic positioning, depth control and automatic steering.
Our experienced people make the difference, being knowledgeable, reliable and open, with the resources and expertise to go the extra mile.
Best signal-to-noise ratio. Lowest frequencies. Most reliable 4D. Widest weather window. Broadband ready. For the most demanding applications, choose Sentinel.
Contact us by opening an online inquiry.
EITHER... search our portfolio of innovative solutions:
OR... browse our alphabetical directory of geoscience products and services:
Discover how we increase marine seismic acquisition productivity while minimizing environmental footprint.
Explore CGG's impressive library of journal and magazine articles.