Silas Seismic acquisition and processing software suite Specifications Acquisition Digital high resolution seismic acquisition. Supports USB-A/D card and UDP inputs/outputs. Real-time data and single trace monitoring, including real-time output of depth values of bottom track and a bottomlayer: hard bottom or iso-density level (requires calibration). Processing Silas Density Pro License Digital seismic processing package that enables the user to identify, analysis and interpret the geological features found in the sea bottom. With features such as: • Layer tracing • Position and tide corrections • Navigation view • Cross-points • Batch fi ltering • Signal correction • Borehole import/export • Density calibration of seismic data for nautical depth management • Fluid mud migration studies • Predictive multiple reduction • Seismic parameter assessment • Sub-bottom classifi cation module Matrix import Silas module: displays multibeam or gridded data loading in seismic records to check against or match with height data. Frequency fi ltering Silas advanced signal processing modules for S/N enhancement providing a wide range of frequency fi lters. Deconvolution Silas advanced signal processing modules for S/N enhancement providing spiking deconvolution tools. Horizontal stacking and multiple suppression Silas advanced signal processing modules for S/N enhancement by suppression and enhancement techniques. Density calibration and calculation Tool to match acoustic data with in-situ density profi les. Calculation of synthetic density profi le per trace. Tool required for real time density mapping. Overlay borehole and geotechnical data Import and overlay of borehole data (BH, CPT, chemical tests, density, etc.) on seismic records. Subbottom material classifi cation Signal analysis and matching to material properties of subbottom layers: Impedance, absorption and velocity module. Density (red) and yield stress (blue) profi les in a fl uid mud layer recorded by the RheoTune, implemented in Silas. GeoTiff mapviewer Import of geotiff data (multibeam, sss, geological map etc) and presentation in plain view. Automated contact detection Contact recognition based on two quantifi able parameters which enable a more objective classifi cation of detected contacts. SEG Y import / export Silas module: reads and stores seismic data in various SEG Y-formats. 7
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