The Acoustic CorerTM is a subsea surveying technology that interrogates the sub-seabed to optimize offshore installation programs. The Acoustic CorerTM fills the gap between current geophysical and geotechnical site investigation methods by providing an acoustic core 12 meters in diameter penetrating up to 30 meters sub-seabed.

F E A T U R E S• Images Geohazards

○ Boulders ○ Gassy soils ○ Unexploded ordnance (UXO)

• Delineates Sub-Seabed Stratigraphy ○ Bedrock (chalk) ○ Gravel/cobble layers ○ Dipping slippage planes/beds

• Provides Soil Characterization

A P P L I C A T I O N A N D M A R K E T• Renewable Energy

○ Offshore wind farm foundation • Oil and Gas

○ Subsea installation ○ Rig location (borehole replacement) ○ Excavated drilling centers

• Marine Mining Archaeology ○ Deposit delineation ○ Nodule detection ○ Marine artifacts

B E N E F I T S• Reduce risk by imaging full site volume• Resolves conflict between physical cores

and CPTs in complex seabeds• Reduces the number of physical cores

required• Mitigates against cost overruns and

schedule delays• Improved survey data reduces overall

project risk

theAcoustic Corer™DE-RISKING

OFFSHORE PILE INSTALLATIONS

S U B S E As o u n d i n g o u t r i s k

PanGeo Subsea Inc.16 Mackey Place, St. John’s, NL Canada A1G 1A1Tel +1 709 739 8032Fax +1 709 739 8035

PanGeo Subsea Scotland LTD.Suite A, Pavilion 7, Kingshill Park, Venture Drive, Westhill, Aberdeen - AB32 6FL, United KingdomTel +44 1224 766180Fax +44 1224 766181

Email: sales@pangeosubsea.comwww.pangeosubsea.com

S U B S E As o u n d i n g o u t r i s k

Sequence of 3D geological horizons as interpreted from Acoustic Corer™ SAS volume

3D Acoustic Corer™ SAS volume reveals boulders, stratigraphy, and other geohazards to a depth of up to 30 m sub-seabed. Planned pile location is shown within the volume.

Acoustic Corer™ true 3D imagery characterizes the sediment variability through a 12 m diameter volume.

The Acoustic Corer™ delineates sub-seabed stratigraphy and correlates with boreholes, CPTs, and other geotechnicalprofiles to enhance the value of the sub-seabed profile by laterally extending geotechnical data to a 12 m diameter core.

The Acoustic Corer™ can be used in this way to reduce the number of physical cores required.

D E - R I S K I N G S U B - S E A B E D I N S T A L L A T I O N

E N H A N C I N G T H E S U B S E A B E D P R O F I L E

Boulders intersecting planned location of 1.5m

diameter pile

The planned location of 1.5 m diameter pile intersects cluster of 0.4 – 0.8 m boulders. Client chose to relocate the pile to a clear

area, and avoided pile refusal.