8057 SONARDYNE | Alldatasheet
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Sonardyne UK (Head Office) T. +44 (0) 1252 872288 F. +44 (0) 1252 876100 E. sales@sonardyne.com www.sonardyne.com Datasheet Subsea Acoustic Data Logger System
Description
Sonardyne's new generation of Subsea Acoustic Data Logger System uses a spread spectrum, high speed acoustic link to allow large volumes of logged data to be rapidly and accurately retrieved at the surface. When combined with the feature of ROV portability, the system is the ideal solution for initial well appraisal, where frequent downhole pressure and temperature readings need to be logged over a period of a few weeks. However, the new system is equally suitable for long- term deployments where it may remain installed on a wellhead, logging data for several years without intervention. The latest system is ideal for initial well appraisal and can easily be moved between wells by ROV. It uses a high speed acoustic data link for rapid retrieval of the large volumes of downhole data often associated with well appraisal activities. As such, the subsea unit can be interfaced to all industry standard downhole gauges whilst custom interfaces can be supplied on request. Key Features
- Designed for ROV deployment and retrieval
- Easily moved between wells
- High speed, spread spectrum acoustic data link
- Interfaces to all industry standard gauges
- Depth rated to over 10,000 feet (3,000 Metres)
- Fully adjustable data logging rate
- Long-life seabed deployment
Sonardyne UK (Head Office) T. +44 (0) 1252 872288 F. +44 (0) 1252 876100 E. sales@sonardyne.com www.sonardyne.com Specifications subject to change without notice - 10/2006 Specifications Subsea Acoustic Data Logger System Feature Type 8057 Depth Rating 3,000 Metres Operating Frequency LF (14–19kHz) Transducer Beamshape ±90º (Shallow) ±30º (Deep) Transmit Source Level (dB re 1µPa @ 1m) 192dB (Shallow) 202dB (Deep) Receiver Threshold(dB re 1µPa) <100 dB Power Long Life Lithium Typical Battery Life (assuming 3 guages) At a reading rate of: 1 reading every 10 minutes 1 reading every hour 1 reading every day 230 days 2.5 years 5 years Acoustic Data Link High Speed, Spread Spectrum Acoustic Data Transmission Rate 600 Baud (True payload rate- raw data rate is 1200 Baud) Data Storage Capacity 8Mb St andard (Expandable to 16Mb) External Interfaces Analogue or Serial 1x Gauge √F 1x Serial Port External connectors ROV Mateable Battery Storage 14.5 V ROV Transportable Yes Mechanical Construction Super Duplex Stainless Steel Weight in Air 70kg Weight in Water 50kg Note 1. The standard 8Mb capacity represents more than 3 years of data storage, at one reading (of 3 gauges) every 10 minutes. For virtually all practical applications, there will be substantial memory capacity left unused at the end of the deployment, as the memory usage life will typically exceed the life of the internal battery pack.