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Processing and Analysis Results of the First 3D Nimble Node Survey; West Siberia, RussiaNormal access

Authors: D. Tverdokhlebov, I. Arutyuniants, E. Danko, A. Gayduk, D. Ablyazina, R. Melnikov, O. Adamovich, J. Naranjo and A. Ourabah
Event name: 81st EAGE Conference and Exhibition 2019
Session: Imaging Case Studies I
Publication date: 03 June 2019
DOI: 10.3997/2214-4609.201901179
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 840.07Kb )
Price: € 20

Summary:
BP, Rosneft and WesternGeco jointly developed a new nimble node for land seismic acquisition (Manning, et al., 2018). The first 3D acquisition using this new system was conducted in Western Siberia, Russia in early 2018 (Brooks, et al., 2018) where the nimble node was tested alongside conventional land cable geophone array equipment for data comparisons. Three data volumes were processed using a robust standard pre-stack time migration workflow. They include the cable system with conventional geophone arrays (50 m inline spacing, 12 geophones per group), the original nimble node survey (5 m inline spacing) and a decimated version of the nimble node survey (50 m inline spacing). The comparisons indicate that the increased sampling at 5 m contributed to improved vertical and spatial data resolution and image quality. Of note, even at 5 m station spacing, the nimble node was deployed twice as fast as the conventional cable geophone arrays (Brooks, et al., 2018). Better image quality together with significant acquisition operational speed improvements make nimble node surveys attractive solutions for land acquisition.


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