SAN DIEGO16/11/2010

Contact: Philippe PlantevinEmail : pplantevin@soacsy.com - Website : www.soacsy.com

Tél. +33 (0)4 90 49 06 91- Mob. +33 (0)6 60 24 16 25

A NEW ACOUSTIC SOLUTION FOR SEABED CHARACTERIZATION

SAN DIEGO16/11/2010

OUR SOLUTION

OUR SOLUTION: SOAC-LOGS

Acquisition Post-Processing Characterization

SOAC-CHIRP

Sub-bottom profilerAcquisition softwareProcessing software

SOAC-LOGS

Software module: Estimation of absorption, reflectivity, impedance

SOAC-LOGS

CalibrationsGeotechnical andGranulometric estimations

Direct measurements (piezocone, coring)

- Gives access to Geoacoustical, Geotechnical or Granulometric parameters - Down to 50 ft. in sands while maintaining very high resolution (< 4 in.) - Even in inaccessible or complex zones (near oil platforms)

SEABED CHARACTERIZATION TODAY - Geophysical (SBP) and Geotechnical (Piezocone, coring) tools used for seabed assessment - Results often difficult to correlate- Current available acoustic solutions limited to qualitative visualization

AN INTEGRATED SOLUTION: FROM ACQUISITION TO CHARACTERIZATION

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APPLICATIONS

- Access to a full seabed 3D view between CPT points for pipeline routing

=> avoid mismatch with a predefined installation path

- Marine aggegates: Optimizes exploitation without coring

- Coastal hazards: Evaluate slope stability

- Offshore Eng. : Determine Best anchor points to focus coring

- Detect buried structures even near oil platforms=> to draft precise implementation plans as well as optimizing and facilitating on site work

BENEFITS:

• Better understanding of geological processes• Reduced operating costs – Time effective• Better assessment of geotechnical hazards

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SOAC-CHIRP Sediment ProfilerIntegration exam

ple: Nym

phea / Geocean

Developed to optimize SOAC-LOGS characterization performance:

• Chirp signals from 400 Hz up to 8 kHz

=> High penetration (50 ft. in sands) with high resolution (< 4 in.)• High stability of the source

=> Advanced signal processing, • Innovative antenna

=> High rejection of lateral echoes (±7°)

Easy mounting on small pneumatic boats and survey vessels between 6 m (20 ft) and 15 m (50 ft).

Easy handling: 4 modules less than 36 kg (80 lbs)

SOAC-CHIRP can be operated even in inaccessible or complex zones

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SOAC-LOGS Module for characterization

Soac-logs

Sub-bottom profiler Full signals in seg-y format (module and phase)

Sounder Parameters

(Source Level,…)

1) Absorption (dB/) 2) Reflectivity (dB) 3) Impedance (kg.m-2s-1)0) Raw seismogram

CalibrationGeotechnical orGranulometric

parametersDirect

measurementsCp,

*Data provided courtesy of IFREMER : exeample of result with CHIRP GF

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SHALLOW WATER EXAMPLE

A project carried out by Soacsy next Nice AirportSeismogram SOAC-CHIRP

Acoustic impedance SOAC-LOGS

Gas front

Layers of sediments

Fine-grained sediments

Acquisition: SOAC-CHIRP

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Data acquired by Ifremer (Suroit Vessel) - Storegga (Norway)

DEEP WATER EXAMPLE

Raw seismogram

Corrected seismogram

Improved vertical resolution

Estimated impedance:The strong reflector of a fine layer with a very lowimpedance

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CONCLUSION

>Validated on various dataset by comparison with direct measurements:

-Using a piezocone (Guinea Gulf – Ifremer/Total)

-Using physical measurements carried out after coring (Marmara sea – Collège de France/Ifremer).

>Technology currently sold as a service operated by Soacsy

>Product available soon for sale and hire

>SOACSY is looking for technical and financial partnerships in order to sell its solution on the US market.