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True Vertical and Orthogonal OBN Sensing with 3C MEMS Sensors

Source: www.gulfoilandgas.com 9/10/2020, Location: Europe

OBN projects are taking an increasing market share over towed streamer surveys. Despite significantly higher costs of operation, OBN enable flexible layout strategies, seismic wavefield recording with high signal to noise ratio, broadband signal recording, the recording of PS waves and a better repeatability for 4D surveys.

Until now all OBN available on the seismic market have been equipped with 3C omni-tilt 15 Hz geophones, however, a recently released node offers 3C MEMS sensors as an alternative.

MEMS are renowned for their ability to record seismic signal with true amplitudes and phases, from DC to 800 Hz, contrary to geophones whose sensing fidelity varies with manufacturing tolerances, ageing and temperature.

In addition, the third generation of MEMS (Lainé 2014, Fougerat 2018) has overcome the low-frequency limitations associated with previous generations.

Seismic survey News in France >>

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Australia >>  10/16/2020 - The recent Australian acreage release focuses heavily on the northwest shelf. PGS seismic data and studies provide excellent coverage for basin-scale ...
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United States >>  10/15/2020 - CGG has announced the start of a new seismic data reimaging program in the prospective Walker Ridge area, as part of a major reimaging campaign being ...
United Kingdom >>  10/13/2020 - Blue Ocean Seismic Services, the marine seismic survey disruptor, has secured a total of £10 million of Series A investment from a group of world-lead...




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