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Acoustic Data Logger

Wellbore monitoring system

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Overview

Unleash the power of seamless well monitoring with your Acoustic Data Logger

Experience the power of seamless, long-term well monitoring with our cutting-edge Acoustic Data Logger. Unlock unparalleled insights, optimise your operations, and take your well management to new levels of efficiency and success. Introducing our state-of-the-art Acoustic Data Logger – the ultimate solution for reliable, long-term well monitoring. Engineered to withstand the harshest environments, this versatile device is your key to optimising your operations and unlocking unparalleled insights.

Durable, compatible, configurable, portable

Why Acoustic Data Logger is perfect for your operations

Built on more than 30 years of successful installations, Acoustic Data Loggers provide you with the power to read multiple gauges at predefined intervals, securely store the received information within the unit, then transmit it acoustically through the water column to the surface on-demand.

The current generation includes our 6G and Wideband 2 acoustic technology, allowing large volumes of logged data to be rapidly and accurately retrieved at the surface.

Unmatched longevity for unwavering performance

Say goodbye to frequent maintenance and costly disruptions. Your Acoustic Data Logger can remain deployed for several years without the need for intervention, ensuring your well data is captured with unwavering consistency. They are compatible with Intelligent Well Interface Standardisation (IWIS) and non-IWIS gauge cards from the leading wellbore downhole pressure and temperature gauge manufacturers.

Using normal gauge reading sample rates they can operate for up to three years. Longer deployments or higher sample rates are easily accommodated using external battery packs. All hardware is supplied in corrosion-resistant super duplex stainless steel canisters for very long deployment periods.

ROV portability to a maximum depth of 3,000 m, makes the system ideal for initial well appraisals, where frequent downhole pressure and temperature readings need to be logged over a few weeks. However, the system is equally suitable for long-term deployments where it may remain installed on a wellhead, logging data for several years without intervention.

Suspended or abandoned well monitoring

High-availability acoustic subsea modems are designed for use with third party systems to facilitate the transfer of wellhead or wellbore data to the surface. Our modems can be designed, tested and supplied as part of a third party’s well monitoring solution, including electromagnetic, and through-casing tube technologies to the wellhead or tree-mounted modem.

At a glance

  • Perfect for well appraisal campaigns
  • ROV-deployable, easy to move between wells
  • Can be interfaced to wide range of down hole gauges
  • Depth rated to 3,000 m (10,000 feet)
  • Harvest data using vessel, rig or ASV

Performance

• Standard depth rating of 3,000 m
• Configurable sample rates from 2 minutes to 5 days
• Weight in water 63 kg
• Acoustic data rate 300–9,000 bps

Design

• Super Duplex Stainless Steel construction
• Integrates into all industry-standard gauge cards
• Fully configurable logging and reporting scheme
• 512 gb internal storage

Connectivity

• ROV mate-able connection
• LMF (14–19kHz) acoustic link
• High speed, spread spectrum acoustic data link

Support

• Comprehensive and flexible training for system operators
• 24-hour support, whenever and wherever you are in the world
• Work side-by-side with our Custom Engineering Team from concept to deployment
• Systems are manufactured and tested before delivery at our world-class in-house facilities

Specifications

Feature Type 8195
Acoustic
Operating Frequency LMF (14–19 kHz)
Transducer Beam Shape ±30° (directional)
±70° (omni with noise shield)
Transmit Source Level (dB re 1 µPa @ 1 m) >190 dB
Receiver Threshold (dB re 1 µPa) 85–120 dB (7 levels)
High speed, spread spectrum
Acoustic Data Link High speed, spread spectrum
Transmission Rates 300–9,000 baud (true payload rate variable by telemetry scheme)
Power
Power Long life lithium primary cell battery pack
Battery Capacity Single Battery Pack 120 Ah @ 14.5 V dc
Dual Battery Pack 240 Ah @ 14.5 V dc
Battery Life Dependant on interface and logging configuration
Interface Card Supply Voltage 24 V dc ± 4 V
Maximum Power 30 W
Communication and Interface
Gauge Interface Card Type 1 x IWIS DHPT Interface Card (dependant on field requirements)
Interface Card Serial Communication Format IWIS RS485 at 9,600 baud, Modbus TCP or Modbus RTU protocol
Interfaces Serial 2x RS485/422 – 2x RS232
Analogue 6x Analogue
Serial Communication Direct serial access to data logger & Gauge Interface Card via the external serial port
Logging and Data Storage
Minimum Memory Capacity 512 Mb – Industrial SD Card (non-volatile)
Sample Rates Standard Configurable from 2 minutes to 5 days (dependant on interface)
Special High sample rate operation for user defined durations from 1 minute to 4 days with configurable rates from 5–60 seconds (dependant on interface)
Mechanical
Mechanical Construction Super duplex stainless steel – UNS32550
Mechanical Design Sonardyne 6th Generation including inter O-ring test ports
Dimensions (Length x Diameter) MF Single Battery Configuration 1,086 x 199 mm
LMF Dual Battery Configuration 1,348 x 199 mm
External Connectors Gauge Interface 1 x ODI or TRONIC (dependant on field requirements)
Serial Test Port 1x Subconn MCBH8M
1x Subconn MCBH8F
Environmental
Depth Rating 3,000 m (dependant on connector)
Operating Temperature -10 to +55°C
Storage Temperature -25 to +70°C
Design Qualification ISO 13628-6 Level Q1 & Q2
Options
ROV Handle Type 8195-007 ROV Handle Assembly (folding), super duplex stainless steel – UNS32550
Battery Configuration Single (120 Ah), Dual (240 Ah) or Triple (360 Ah)