1. SAN DIEGO 16/11/2010 Contact: Philippe Plantevin Email : pplantevin@soacsy.com - Website : www.soacsy.compplantevin@soacsy.comwww.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

2. SAN DIEGO 16/11/2010 OUR SOLUTION OUR SOLUTION: SOAC-LOGS AcquisitionPost-Processing Characterization SOAC-CHIRP Sub-bottom profiler Acquisition software Processing software SOAC-LOGS Software module: Estimation of absorption, reflectivity, impedance SOAC-LOGS Calibrations Geotechnical and Granulometric 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

3. SAN DIEGO 16/11/2010 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

4. SAN DIEGO 16/11/2010 SOAC-CHIRP Sediment Profiler Integration example: Nymphea / 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

5. SAN DIEGO 16/11/2010 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 -2 s -1 )0) Raw seismogram Calibration Geotechnical or Granulometric parameters Direct measurements C p,  *Data provided courtesy of IFREMER : exeample of result with CHIRP GF

6. SAN DIEGO 16/11/2010 SHALLOW WATER EXAMPLE A project carried out by Soacsy next Nice Airport Seismogram SOAC-CHIRP Acoustic impedance SOAC-LOGS Gas front Layers of sediments Fine-grained sediments Acquisition: SOAC-CHIRP

7. SAN DIEGO 16/11/2010 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 low impedance

8. SAN DIEGO 16/11/2010 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.