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http://dx.doi.org/10.7582/GGE.2022.25.3.129

Development of Digital Streamer System for Ultra-high-resolution Seismic Survey  

Shin, Jungkyun (Pohang Branch, Korea Institute of Geoscience and Mineral Resources)
Ha, Jiho (Pohang Branch, Korea Institute of Geoscience and Mineral Resources)
Yoon, Seongwoong (Advanced Wave Technology)
Im, Taesung (Advanced Wave Technology)
Im, Gwansung (Advanced Wave Technology)
Publication Information
Geophysics and Geophysical Exploration / v.25, no.3, 2022 , pp. 129-139 More about this Journal
Abstract
Analog-based streamers for ultra-high-resolution seismic surveys are capable of additional noise ingress in water, but the specifications cannot be expanded through interconnections. Foreign-produced digital streamers have been introduced and used primarily at domestic research institutes; however, the cost is high and smooth maintenance is challenging. This study investigates the localization of ultra-high-resolution digital streamers capable of high-resolution imaging of a geological structure. A digital streamer capable of 24-bit, 10 kHz digital sampling of up to 64 channel data was developed through research and development. Various quantitative specifications of the system were designed and developed close to the benchmark model, Geometrics' GeoEel streamer, and the number of modules that make up the system was drastically reduced, reducing development costs and making it easier to use. The field applicability of the developed streamer system was evaluated in an in situ experiment conducted in the waters around the Port of Yeong-il Bay in Pohang in April 2022.
Keywords
ultra-high-resolution seismic survey; seismic streamer; digital streamer; survey equipment;
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