Acoustic Coring – Kraken Robotics

Acoustic Coring

De-Risking Offshore Installations

Kraken's Acoustic Corer™ utilizes advanced acoustic technology for sub-seabed interrogation, optimizing offshore installation programs. By bridging the gap between geophysical and geotechnical site investigation methods, it delivers a 3D acoustic core with a 14 m diameter and depths exceeding 50 m, depending on lithology.

Visualize Sub-Seabed Hazards

Identify buried boulders >0.2 m in diameter
Detect geohazards such as gassy soils and unexploded ordnance (UXO)
Delineate subsea stratigraphy, including bedrock, gravel/cobble layers, and dipping slippage

3D Geophysical and Geotechnical Integration

Provide 3D imaging of lithological units to support foundation design
Correlate geotechnical samples across foundation footprints
Target features of interest for geotechnical sampling

Real-Time Data for In-Field Decisions

Visualize data in real-time with preliminary interpreted results within 72 hours
Enable rapid decision-making during offshore surveys
Post-survey analysis includes velocity models, 3D volume merging, and statistical correlation

Reduce Installation Risk

Mitigate foundation installation risks such as pile refusals, buckling, and slippage
Optimize foundation design for complex seabeds in offshore energy markets
Ensure projects stay on schedule and within budget

Key Sector Applications

Offshore Energy

Subsea Infrastructure Inspection

Buried Boulder Detection and Mapping

Sub-Seabed Foundation Location Assessment

Our Technology

Acoustic Corer

Dimensions:
- Folded: 8.5 m x 2.3 m x 2.05 m
- Deployed: 13.3 m x 2.3 m x 5.3 m
Weight: 5500 kg

ISO 20′ Control Van

Dimensions: 6.1 m x 2.4 m x 2.6 m
Weight: 5500 kg

ISO 10′ Spares Container

Dimensions: 3.1 m x 2.4 m x 2.6 m
Weight: 4000 kg

1500 m Winch + Umbilical

Dimensions: 1.5 m x 1.8 m x 1.5 m
Weight: 225.7 kg

The Acoustic Corer folds for transport

Operational Support Requirements

DP 1/2
20 ton crane (heave compensated in waters deeper than 100 m)
Onboard survey and positioning
IMCA class 2 ROV support
Requires 440 VAC, 3-Phase, 50/60 Hz, 63 A

Operating Specifications

1500 m max depth rating
Max seafloor inclination 5 degrees
Max subsea current 0.5 kts – 1.0 kts
Ambient subsea noise threshold applies

Personnel Requirements

5-6 Kraken operations team
ROV support team
Survey team

Gallery

Case Studies

Depth of Burial Survey for Inter-Array Cables

Borkum Riffgrund 3 Offshore Windfarm

Sub-Seabed Boulder Survey

Symra and Solveig Oil and Gas Fields

Sub-Seabed Boulder Survey

Baltyk II & III Offshore Windfarms

Sub-Seabed Cobble and Boulder Survey

Gennaker Offshore Substation (OSS)

For Customer Support or to Speak to One of Our Team

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