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Advances In OBN Technology: New Designs For Reservoir Monitoring And Large Scale SurveysNormal access

Authors: J. Smythe, D. Hays, P. Docherty and C. Udengaard
Event name: Marine Acquisition Workshop 2018
Session: Advances in Marine Seismic Acquisition: The Receiver Side
Publication date: 22 August 2018
DOI: 10.3997/2214-4609.201802096
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 1.59Mb )
Price: € 20

Summary:
Two new designs are introduced that demonstrate the flexibility and scalability of node technology from reservoir monitoring to large-scale OBN surveys. ZLoF is a nodal alternative for reservoir monitoring. The system features a 5 year deployment life and an optical communication system for high-speed data download. In deep water, ZLoF will provide frequently repeated, high quality 4D seismic data at a lower cost than cable based permanent reservoir monitoring systems. ZXPLR is a new node capable of dual mode deployment with either a passive rope, in shallow water, or by ROV, in deep water. In the first deepwater deployment, overall survey duration was reduced by 50% from similar deployments using older systems. The entire deployment /retrieval system has been redesigned and made safer and more efficient by powered and piloted thrusters on the all subsea systems.


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