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A multipurposetool for mAnydifferentenvironments
›Robustdesignandoutstandingperformance
›Easytotransport
unpArAlleled imAges And technicAl meAsurements
›Buriedobjects(pipes,cables,UXO,etc.)
›Accurateestimatesofgeoacousticandgeotechnicalparameters(e.g.meangrainsize)
precise Andefficient seAbedAssessment
seachirp - wavelengths ahead...
superior subbottom profiler for shAllow wAter
›SuperwidebandChirptechnology
›AdvanceddesignSeaWING
›SyntheticApertureSonar(SAS)processing(optional)
›Seismicinversionprocessing(optional)
www.soacsy.com
Shelter
InstrumentationGPS
Receivingantenna
Emitter
Floatinganchor
SealevelSelf supporting
electric cable
on-board ruggedized electronicsAmplifier: 2.5 kW power outputAcquisition system: 24-bit resolution ADC / DAC (118 dB dynamic range)
super wideband chirp technology ›Deeppenetrationwithhighresolution,enablinganalysisofdifficultseabeds(coarseorconsolidated)-Detectionofsmallburiedobjects(e.g.6’’pipes).
seawing Advanced design± 10° rejection
›Filtersideechoesinordertoimprovemeasurementinterpretationandburiedobjectpositioning.
the
package
Before After
4to10’’pipedetection
seismic inversion processingQuantitative and precise (<10cm) imaging of the seabed
›Optimizedirectmeasurementfigures(coreboring,vibrocores,ConePenetrationTesting,...)
›Correlatetheresultswithgeotechnicalmeasurementsandgetacom-plete3Dmappingofthesoilresistance.
synthetic Aperture sonar processing50 cm longitudinal resolution, even at water depths ofseveral dozen meters
›Resolveclosedobjects(e.g.pipelines)›Getaccurateimagingofseabedstructures(e.g.landingsites).
emitter0.4 – 8 kHz (4.5 octaves)
Sealevel
Instrumentation
GPS
Floatinganchor
Receivingantenna
Emitter
SealevelSelf supporting
electric cable
Shelter
InstrumentationGPS
Receivingantenna
Emitter
Floatinganchor
SealevelSelf supporting
electric cable
transport casesModule weight < 32 kg
mounting frameIn 6 pieces, total weight ≈ 29 kg
EasyandlowcostworldwidetransportationandinstallationduetoitsmodulardesignTravelwithyourequipmenteverywhereintheworld.
Towed by a vessel of opportunity
Towed by a supply boat
Mounted on a survey boatdifferent set-up possibilities›SeaChirpcanbeoperatedinanynumberofsurveysituations.
Dependingonthetypeofavailablevessel,thefollowingset-uppossibilitiescanbeused:- Onasurveyboat(e.g.rigidinflatableboat),thesystemcanbemountedunderthehullwithaframe
designedspecificallyfortheboat,allowingforexcellentmanoeuvrability.- Towedbehindanykindofvessel(rangingfromavesselofopportunitytoasupplyboat)usingaself-sup-
portingelectrocable.BothemitterandreceiveraremountedonasmallinflatableboatequippedwithGPS,inertialunit,etc.whilethedataacquisitionandprocessingsystemremainsonthemainvessel.Thecablelengthcanbeadjustedtoreducetheacousticnoiseofthemainvessel.
component weight in air (kg)
weight inwater (kg)
height (mm)
length (mm)
width (mm)
emitter 28 15 400 420 420
seawing array 15 ≈0 100 1400 400
Amplifier 28 - 177.8(4U) 482.6(19’’) 430.0
Acquisition system 5 - 190.5 257.1 220.8
towed support(in use / transport)
27 - 425/250 2520/650 1430/800
mounting frame(in use / transport)
29 - 800/370 1000/1000
1500/800
Key specifications
* Additional positioning requirements for SAS processing option:
- Relative precision in X,Y < 10 cm- Relative precision in Z < 5 cm - Frequency sampling ≥ 10 Hz- NMEA format
frequency range
verticalresolution
penetration
0.4-8kHz <10cm >15m
longitudinal resolution(after SAS Processing *)
max firingrate
≈50cm 20Hz
Amplifier Acquisition system / processor operating system file format i / o power input
Ruggedized,portablesplashproofenclosure
Ruggedizedprocessor2cores24-bitsDAC/ADCwith118dBdynamicrange
Windows7 SEG-Y Ethernet,RS232,2USB
100/240VAC,2KW
›Detectionandveryhighresolutionlocalizationofsmallburiedobjects(pipelines,cables,UXO,...)incomplexenvironments(closetooffshoreplatforms,steepslopes,shallowwater,...)
- Mitigationofinstallationrisks- Timeandcostsavingscomparedtoexistingmethods
›Preciseimagingandquantitativecharacterizationofsedimentsatdepthsofseveraldozenmeters
- Optimizationofdirectmeasurementfigures(coreboring,vibrocores,ConePenetrationTesting,...)
- Betterunderstandingofgeologicalprocesses
uses and advantages
›Oil&Gas Rehabilitationofidlewells,soilsurveys
(Jack-upmovement,geotechnicalhazards,...)
›Civilengineering Offshorewind,waveandtidalrenewableenergyproduction,
harborconstruction,shorezoneconstruction,bridgefoundationinspection,anchorpiling,...
›Mining Detection(sands),measurementof sedimentlayers,
sedimenttransportstudies
sectors›Pipelines&Cables (Fiber optic, telecom, HVDC) Surveysinshallowwaterornearexistinginfrastructures,Burial
AssessmentStudy(BAS),re-surveys(as-laidburialpositionanddepth,out-of-straightnessdetection)
›Dredging Detectionandmeasurementofsedimentlayersfor
dredgingtasks
›Archaelogy Shipwrecks,marineartifacts,...
[email protected] - www.soacsy.com1, rue Nicolas Copernic - BP62074 - 13646 Arles Cedex - Tél. 04 90 49 06 91