Delph v29 2 - DELPH Seismic


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DELPH v29 - DELPH Seismic Presentation
Seismic & Sub-Bottom Profiler data acquisition, processing and interpretation.

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Delph v29 2 - DELPH Seismic

  1. 1. DELPH Seismic General Presentation V2.9 Spring 2012
  2. 2. 2 Introduction  DELPH Seismic is a complete Acquisition, Processing and Interpretation tool designed to perform easily accurate and productive surveys using shallow seismic systems and sub-bottom profilers.  DELPH Seismic does:  Ensure quality data management  Improve the interpretation workflow  Eliminate bottlenecks during the processing and interpretation  Using these components with a unique global viewer concept and powerful geographic tools, the necessary time to complete a mission report is drastically reduced.
  3. 3. 3 DELPH Seismic Components  DELPH Seismic includes all necessary components to perform high-resolution seismic and sub-bottom surveys:  Turnkey Solutions Including DELPH Acquisition Workstation, iXBlue ECHOES or Third-Party SBPs  DELPH Seismic Acquisition Easy and High Quality Data Logger  DELPH Seismic Interpretation Data Processing and Geo-Interpretation  DELPH Seismic Geo Tools Build GeoSections and Horizon Surfaces  DELPH Seismic Real-Time Real-Time Processing, Interpretation and GeoSections
  4. 4. 4 Workflow
  5. 5. 5 Architecture  Acquisition of analog and digital  Processing  Interpretation Seismic Systems & Sub-Bottom • Full Processing • Global viewer display Profilers • Multiple Removal • Cross profiles browsing • System monitoring • Swell Filter • Horizon Picking • Waterfall display • Tide Compensation  Horizon tracking • Full raw data logging (XTF / SEG-Y)  Horizon and Thickness export  Geographic Tools • 3D interpretation QC and display • Vertical Fence Diagrams : GeoSections • Horizon Surfaces display : Seismic DTMs • Geographic interpretation with other sensor data (side-scan sonar, bathymetry, magnetometer)
  6. 6. 6 DELPH Seismic Acquisition
  7. 7. 7 DELPH Seismic Acquisition - Features  Compatible with all analog and most digital sub-bottom profilers  iXBlue ECHOES (1K5, 3K5, 5K, 10K)  Sparkers, Boomers, AirGuns, …  Edgetech FSSB, Benthos Chirp III  Multi-Channel Acquisition  Multiple Synchronous Channels  Two Asynchronous Channels  Real-time « waterfall », signal and frequency spectrum display  Automatic Contrast Enhancement  High Pass and Low Pass Filters  Data logging (XTF or SEG-Y format)  Quality Control with Status Indicators  Windows XP - Vista(1) - 7(1) (1) Analog acquisition runs on Windows XP
  8. 8. 8 DELPH Seismic Interpretation
  9. 9. 9 DELPH Seismic Interpretation
  10. 10. 10 DELPH Seismic Interpretation - Features  Full report preparation tool  Profile processing, edition and interpretation  Geographic Visualization  Interpretation  Horizon Surfaces  GeoSections  Other sensors  Based on industry standards  XTF and SEGY  ShapeFile, KML  GeoTiff  TXT, CSV  HTML, XML  Bitmap, Tiff  Windows XP - Vista - 7
  11. 11. 11 Display Display Global viewer Cross profile navigation Intuitive navigation tools Processing DELPH Interpretation offers an innovative way of accessing and visualizing seismic data, thus boosting the workflow from processing to interpretation and reporting. Interpretation Printing Interoperability DTM generation GeoSections
  12. 12. 12 On-Screen display of arbitrary length lines Display  DELPH Seismic Interpretation is Time scale   Global viewer Cross profile navigation based on a fast proprietary  Intuitive navigation tools indexing and caching mechanism that allows to process and display large datasets while preserving Processing computer resources. Interpretation  DELPH Seismic Interpretation can display arbitrary length seismic / Printing sub-bottom profiler lines. Interoperability  Like unrolling paper to directly access to features of interest, or Along track DTM generation interpreting large scale structures, scale DELPH Seismic provides a direct access to sub-bottom records GeoSections [ Get rid of scrolling forward – backward like with old tapes and benefit of a direct access …]
  13. 13. 13 Cross profile navigation and multiple windows display Display  DELPH Seismic Interpretation  Global viewer can display several lines Cross profile navigation simultaneously on one or   Intuitive navigation tools multiple screens. Processing  Crossing profiles locations are displayed and each crossing Interpretation profile name is available. Printing  The vertical position of digitized [ Interpretation and vertical correction QC layers in the crossing profiles is made easy …] Interoperability displayed along with the reflector name and corresponding travel DTM generation time. GeoSections  The crossing line can be opened in a new window by clicking on the graphical symbol
  14. 14. 14 Intuitive navigation tools Display  Intuitively analyze the data  Global viewer using mouse and keyboard Cross profile navigation keys:   Intuitive navigation tools • Zoom to the complete profile or a particular area Processing • Zoom in and out to the data • Pan, scroll Interpretation • Adjust vertical and horizontal scales Printing  The display is separated from Interoperability the processing DTM generation  Saving time on data access drastically improves the QC and GeoSections interpretation steps
  15. 15. 15 Processing Display Processing Chirp processing Filtering Gain control Multiple removal Spatial processing Parallel processing Interpretation Processing seismic data is necessary prior to perform the interpretation. DELPH Seismic first class processing helps you to get the best from your sub-bottom data Printing Interoperability DTM generation GeoSections
  16. 16. 16 Chirp processing Display  When the shape of the signal emitted in the water is known DELPH Seismic allows you to Processing apply chirp processing  Chirp processing  Filtering  Gain control  Chirpprocessing can be used to   Multiple removal Spatial processing obtain:  Real and imaginary part of the signal Interpretation  Envelop or phase of the signal Printing  The “signature deconvolution” processing attenuates the ringing of monochromatic seismic Interoperability sources like sparkers or boomers. It improves the vertical resolution DTM generation of the seismic data. GeoSections
  17. 17. 17 Filtering Display  Low frequency components of the raw signal must be removed to obtain usable data  DELPH Seismic allows you to perform High Pass and Low Pass frequency filtering to improve your data Processing  Chirp processing  The Time Varying Filter (TVF) is specially designed to dissociate  Filtering  Gain control  Multiple removal Spatial processing noises in the water-column and in sediments (ex: remove lower frequencies in shorter ranges and higher frequencies in far ranges).  Interpretation Printing Interoperability Filtering OFF Filtering ON DTM generation GeoSections
  18. 18. 18 Gain control Display  The contrast and intensity of the data can be controlled directly using a linear Time Varying Gain control or adaptive gain controls (AGC) Processing  AGC automatically adjusts the energy to an average value all along   Chirp processing Filtering the trace, compensating the attenuation in time. Four different rules  Gain control are available : decremental, linear, exponential and power.  Multiple removal  Spatial processing Gain OFF Interpretation Printing Interoperability Gain ON DTM generation GeoSections
  19. 19. 19 Multiple removal Display  Using the signature of the signal extracted near the bottom DELPH Seismic Interpretation performs correlation and deconvolution processing to attenuate the acoustic multiples. Processing  Chirp processing  The first multiple position can be displayed for each layer during the interpretation.  This powerful processing tool helps you to distinguish the actual geological  Filtering  Gain control   Multiple removal Spatial processing interfaces from the signal multiples. Interpretation Printing Multiple Removal OFF Multiple Display ON Interoperability DTM generation GeoSections Multiple Removal ON
  20. 20. 20 Spatial processing – Horizontal Stacking Display  DELPH Seismic Horizontal Stacking processing reduce the noise level by averaging a ping with its neighborhood. Processing   Chirp processing Filtering Stacking OFF  Gain control  Multiple removal  Spatial processing Interpretation Printing Stacking ON Interoperability DTM generation GeoSections
  21. 21. 21 Spatial processing – Heave Correction & Swell Filtering Display  When a heave sensor data has been logged, it can be used to correct the profile from the swell effect  The Swell Filter can be applied using the tracked bottom and the swell period Processing  Chirp processing  Filtering  Gain control Swell OFF  Multiple removal  Spatial processing Interpretation Printing Interoperability Swell ON DTM generation GeoSections
  22. 22. 22 Spatial processing – Tide Compensation & Static Correction Display  Tidal variations can be compensated based on a tide log file and/or user input.  Static vertical correction from control points (ping/elevation) is also available when no tide data is available or for finely tuning the matching of crossing Processing  Chirp processing lines. The offset between the picked seabed on crossing lines can be  Filtering automatically used.  Gain control  Multiple removal  Spatial processing Interpretation Printing Interoperability DTM generation GeoSections
  23. 23. 23 Spatial processing – Topographic Correction Display  TopoCorrection vertically adjusts the profile based on the sensor immersion data when a pressure sensor is available. DELPH Seismic Interpretation Processing  Chirp processing  Filtering Topo OFF  Gain control  Multiple removal  Spatial processing Interpretation DELPH Seismic Interpretation Printing Interoperability Topo ON DTM generation GeoSections
  24. 24. 24 Interpretation Display Processing Interpretation Bottom and reflector tracking Across and Along Track Area Exclusion Measurement tool Annotation and Drawing Tools Printing Interoperability In DELPH Seismic, sub-bottom data interpretation benefits of productive digitizing DTM generation methods and rich 2D and 3D geographic QC tools. GeoSections
  25. 25. 25 Bottom and reflector tracking Display  DELPH Seismic provides intuitive tools to digitize the seabed and geological interfaces Processing  Reflector definitions are stored in a database and shared between all profiles  DELPH Seismic Interpretation provides an automatic tracking tool that Interpretation decreases significantly the digitizing workload  Bottom and reflector tracking  Across and Along Track Area Exclusion  Measurement tool  Annotation and Drawing Tools Printing Example: Interoperability 4km boomer data Automatic seabed DTM generation tracking in 6 sec. Instant swell filtering GeoSections
  26. 26. 26 Across and along track area exclusion Display  Parts of the sub-bottom data are sometimes of poor quality Processing  Recording of surface noise  Direct surface reflections Interpretation  Excessive recording length  Bottom and reflector compared to acoustic tracking  Across and Along Track penetration Area Exclusion  Acquisition or navigation  Measurement tool  Annotation and Drawing problem Tools  Recording during ship turns  … Printing  The excluded data can be Interoperability removed from the printing, DTM generation and GeoSections :  Exclusion areas are define on DTM generation the profile in a few clicks GeoSections
  27. 27. 27 Measurement tool Display  Use the measurement tool to obtain length of objects on the Processing screen  Distance  Delta-time Interpretation  Bottom and reflector  Slope tracking  Thickness  Across and Along Track Area Exclusion  Measurement tool  Annotation and Drawing Tools Printing Interoperability DTM generation GeoSections
  28. 28. 28 Annotation and drawing tools Display  Annotate the sub-bottom profile directly from DELPH Seismic Processing Interpretation using:  Segments, poly-lines and arrows  Polygons for contouring areas Interpretation  Bottom and reflector  Rectangles, Ellipses and Pictures tracking  Across and Along Track  Text with adjustable font and style Area Exclusion  Measurement tool  Annotation and Drawing Tools  Speed up the reporting process  Chose different colors and line Printing shapes for different objects  Filling and transparency improve the contouring while keeping and Interoperability eye on data DTM generation GeoSections
  29. 29. 29 Print on any Windows printer Display  DELPH Seismic Interpretation can print on any Windows compatible printer up to A0 Processing paper size Interpretation  The print layout is completely configurable, including paper Printing size and orientation, title, logo, … Interoperability A preview helps you to adjust the DTM generation layout before printing GeoSections  Print using a PDF Driver to complete your reporting
  30. 30. 30 Interoperability – Profile image output Display  DELPH Seismic allows you to export data as a picture in TIF format. This functionality is fully customizable (scale, orientation…) Processing  Snapshots of the current display can also be created with an optional magnification factor for hi resolution outputs. Interpretation Printing Interoperability DTM generation GeoSections TIFF profile output JPEG Snapshot output
  31. 31. 31 Interoperability – Interpretation reporting Display  DELPH exports the interpreted reflectors to CSV formatted text files at a desired resolution • Multiple files and horizons can be exported at once Processing • Reflector time can be relative to the start of acquisition (depth), to the seabed (burial) or to another layer (thickness) Interpretation • A sound velocity and measurement unit can be specified for exporting thicknesses Printing • The report includes the date & time and position in a selected projection system Interoperability DTM generation GeoSections
  32. 32. 32 DELPH Seismic Interpretation - GeoTools
  33. 33. 33 DTM Generation of horizon surfaces Display  DTMs can be produced from digitized reflectors with just a few clicks  Results are displayed in DELPH RoadMap Processing  Synchronized cursor with the interpretation  Display with other kinds of sensor data Interpretation  DTMs are stored in geoTIFF file format and can be loaded in third party GIS software Printing Interoperability DTM generation GeoSections
  34. 34. 34 Seismic GeoSections Display  Create vertical sections from the seismic profiles and get a complete view of the survey field Processing  Correlate the acquired profiles in Real-Time  Use designed exclusion areas to remove the water column and far range Interpretation  Match the interpretation against other kinds of sensor data Printing Interoperability DTM generation GeoSections
  35. 35. Questions ? Thank you.