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Geogiga Surface Plus 8.2 - Advanced Surface Wave Data Processing Software

Geogiga Surface Plus è studiato per trattare le onde superficiali sia attive che passive. Comprende tutte le caratteristiche incluse in Geogiga Surface e inoltre può processare le onde passive acquisite con qualsiasi tipo di geometria tra cui: lineare, circolare e non-circolare. Sono inoltre disponibili la funzione di analisi SPAC, l'analisi azimutale,  la time segmentation e la combinazione dello spettro di dispersione.

Geometry QC

Caratteristiche avanzate:

  • Trattamento delle onde attive e passive;
  • Può gestire qualsiasi tipo di geometria: lineare, circolare, non-circolare etc.
  • Permette di gestire le variazioni di quota nella geometria;
  • Analisi delle onde passive attraverso i metodi FK, SPAC e EPAC;
  • Conteggio dei segmenti temporali nell'analisi della dispersione;
  • Genera la curva di dispersione con le funzioni SPAC;
  • Analisi dell'Azimut per geometrie non-lineari;
  • Può combinare lo spettro di dispersione con lo stesso o con altri records;

 

Combine Dispersion Spectrum with different records

Caratteristiche di base:

  • possibilità di caricare contemporaneamente tutte le registrazioni.
  • Geometria completamente personalizzabile;
  • Riduzione del disturbo;
  • Possibilità di escludere alcune tracce nell'analisi della curva di dispersione;
  • Controllo del range delle frequenze con l'analisi dello spettro dell'ampiezza;
  • Calcolo dello spettro di dispersione nel domino F-K, F-V o F-P con il metodo FK ad alta risoluzione;
  • Picking della curva di dispersione interattivo sullo spettro;
  • Visualizzazione dello spettro in 2 o 3D;
  • Modello iniziale costruito automaticamente;
  • Possibilità di definire interattivamente il modello iniziale per l'inversione;
  • Rapporto di Poisson e densità utilizzati nell'inversione specificato dall'utente;
  • Inversione della curva di dispersione tramite algoritmo genetico (GA);
  • Possibilità di interrompere e riavviare la procedura di inversione;
  • Calcolo delle Vs, Vs30(or Vs100) apparenti, e delle velocità depth-weighted;
  • Visualizzazione simultanea delle curve di dispersione e di velocità;
  • Possibilità di comparare curve di dispersione e velocità diverse
  • Sezione risultante con isolinee e simboli stratigrafici editabili;
  • Possibilità di esportare i risultati in un file .txt.

 

Geogiga Surface3D 8.2 - Surface Wave 3D Mapping Software

Caratteristiche principali:

  • Accetta le curve di dispersione generate con Surface Surface plus;
  • possibilità di controllare e modificare l'ubicazione del rilievo
  • Visualizza la curva di dispersione
  • Crea il modello tridimensionale delle velocità partendo dalle curve di dispersione
  • Visualizza il modello tridimensionale come reticolo o cubo
  • Si possono visualizzare molteplici slices verticali od orizzontali

Display veloctiy volume as fence

Geogiga Reflector 8.2 - Seismic Reflection Data Processing Software

Geogiga Reflector integrates all the processing modules so the seismic processing becomes significantly efficient. Choosing different features more conveniently within the single software assures higher processing quality.

Geogiga Reflector has a powerful functionality of multi-step Undo/Redo similar to that in Microsoft Word, which helps to tune processing parameters and compare different results before and after. The high-performance and user-friendly interactive graphic interface is very impressive, and makes the seismic processing more enjoyable.

 

Main Features:

  • Import seismic data
  • QC geometry with layout chart
  • Sort and plot gathers in the order of common depth point (CDP/CMP), common offset, common shot, or common receiver
  • Divergence correction
  • Gain control: automatic gain control (AGC), trace balance, and time variant scaling, etc.
  • Field statics correction including shot depth correction and elevation correction
  • Scale, mute, or reverse seismic traces inside/outside any shape of defined regions which can be interpolated and extrapolated among different records
  • Frequency filter including Butterworth and Ormsby filters with the option of band pass, low pass, high pass, band reject, and notch
  • Time variant band-pass filter
  • Frequency scan
  • F-K filter and high resolution Tau-p mapping with any specified region
  • Random noise attenuation
  • Spiking deconvolution and predictive deconvolution
  • Velocity analysis with velocity spectrum and velocity scan
  • NMO correction and inverse NMO correction
  • Residual statics correction with flat or floating time window
  • Stacking with Alpha-Trimmed, Optimum Offset, Diversity, and Phase Weighted methods.
  • Post-stack migration
  • Time to depth
  • Instantaneous attributes of amplitude, phase, and frequency

 

Benefits:

  • Integrate all modules to make the processing more efficient
  • High-performance and user-friendly graphic interface
  • Display seismic data with lots of controls
  • Overlay stack with velocity
  • Undo/Redo multi-step operations to tune the processing parameters
  • Load thousands of records at a time
  • Support SEG-2, SEG-Y, and other user-defined data formats
  • Print ultra-long seismic profile
  • Save extra-large seismic image
  • Save a single gather in the order of CDP, common offset, common shot, or common receiver

 

Residual Statics Corrections

 

 

Geogiga SF Imager 8.2 - Optimum Offset Reflection /GPR Data Processing Software

 

Geogiga SF Imager is mainly used to process the optimum offset seismic reflection data. It provides elevation correction, filter, random noise attenuation, deconvolution, etc. to improve the S/N ratio. You can import velocities or pick velocities by recognizing diffraction waves on the time section, then migrate the time section and get the depth profile.

Geogiga SF Imager can also be used to process the GPR (ground penetrating radar) data.

Main Features:

  • Define and QC Geometry
  • Gain control including automatic gain control (AGC), trace balance, and time scale, etc
  • Elevation correction
  • Align first arrivals
  • Mute seismic data within an arbitrary region
  • Frequency filter including Butterworth and Ormsby filters with the option of band pass, low pass, high pass, band reject, and notch
  • Random noise attenuation
  • Spiking deconvolution and predictive deconvolution
  • Import velocities
  • Pick diffraction curves
  • Generate instantaneous attributes of amplitude, phase, and frequency
  • Migrate seismic section
  • Time to depth
  • Load thousands of seismic traces at a time and display seismic data with different modes
  • Undo/Redo any step of processing to compare the results and adjust the processing parameters
  • Support SEG-2, SEG-Y, and other user-defined data format
  • Print ultra-long seismic profile

 

 

Geogiga Refractor 8.2 - Seismic Refraction Data Processing Software

All shot records along a profile can be loaded at a time. You are able to manually or automatically pick first breaks, easily assign first arrivals to layers and quickly phantom time-distance curves. The picking precision is improved with the assistance of a trace magnifier and the intercept time QC.

Geogiga Refractor provides the intercept time method, the delay time method, the ABC method, and the generalized reciprocal method (GRM). The velocity and elevation may vary along a profile and the final section can be filled with editable stratigraphic symbols.

 

Main Features:

  • Automatically or manually pick first breaks
  • Pick and verify first breaks with a trace magnifier
  • Interactively assign first arrivals to layers
  • QC intercept time dynamically
  • Automatically or manually phantom time-distance curves
  • Identify lateral velocity variation
  • Interpret time-distance curves with the intercept time method, delay time method, ABC method, and the generalized reciprocal method (GRM)
  • Generate geological section with editable stratigraphic symbols
  • Import seismic data
  • QC and define geometry
  • Correct trigger delay
  • Gain control: automatic gain control (AGC), trace balance, time variant scaling, etc.
  • Scale or reverse a single trace
  • Frequency filter including Butterworth and Ormsby filters with the option of band pass, low pass, high pass, band reject, and notch
  • Undo /Redo multi-step operations on seismic data
  • Save/load time-distance curves in text file
  • Export the section to Geogiga DW Tomo as an initial model

Assign layers with intercept time QC

Benefits:

  • Load all shot records along a profile at the same time
  • Forward, reverse, or mid shot locations
  • Allow irregular spacing
  • Suitable for variable surface
  • No limit on maximum number of layers
  • Check first break picks on traces at any time
  • Quickly assign layers and phantom time-distance curves
  • Support SEG-2, SEG-Y, and other user defined seismic data formats
  • Automatically recognize 3rd party pick formats

Color Section filled with stratigraphic symbols

 

 

Geogiga DW Tomo 8.2 - Refraction Tomography Software

Refraction Tomography does not require layer assignment and phantom prior to inversion. The complex velocity structure can be estimated directly from the first arrivals. This approach is especially suitable to derive the structure with no distinct layer interface due to the gradual velocity change where the traditional interpretation methods are invalid.

Geogiga DW Tomo utilizes the robust grid ray tracing and regularized inversion approach; allows the variable surface. The estimated model can also be used for the statics correction in the seismic reflection data processing.

 

Main Features:

  • Load all shots along a profile at the same time
  • Quickly check and assign geometry
  • Frequency filter including Butterworth and Ormsby filters with the option of band pass, low pass, high pass, band reject, and notch
  • Gain control: automatic gain control (AGC), trace balance, time variant scaling, single trace scaling, etc.
  • Trigger delay correction
  • Undo/Redo multi-step operations on seismic data
  • Interactively pick first breaks with a trace magnifier
  • Robust grid ray tracing
  • Regularized iterative inversion with constraints
  • Multi-approaches to build initial model
  • Allow variable surface
  • QC the picked and calculated first arrivals directly on the seismic traces
  • Fitting error analysis
  • Interactively pause or resume the procedure during tomography
  • Simultaneously update the display of first breaks and ray paths
  • Review the inverted model in each iteration
  • Plot color section with contours and editable stratigraphic symbols
  • Output color section overlaid with ray paths

 

Seismic data, TX curves, velocity model, ray paths

 

 

Geogiga DW Tomo3D 8.2 - 3D Refraction Tomography Software

Geogiga DW Tomo3D utilizes the robust grid ray tracing and regularized inversion approach to derive 3D velocity structure directly from first arrivals in 3D seismic survey.

Main Features:

  • Load all shots
  • Quickly check and assign geometry
  • Allow variable surface
  • Filter and scale seismic data with Undo /Redo supported
  • Simultaneously auto-pick first breaks of all records
  • Automatically and interactively build initial model
  • Utilize robust ray tracing and regularized iterative inversion with constraints
  • QC the picked and calculated first arrivals on seismic traces
  • Pause or resume procedure of tomography
  • Visually analyze fitting errors and review the results of each iteration

Build initial model

 

Geogiga XW Tomo 8.2 - Crosswell Tomography Software

The velocity between wells can be estimated with travel time. Based on the grid ray tracing and regularized inversion approach, Geogiga XW Tomo is capable of deriving the velocity structure among multiple vertical or deviated wells, meanwhile allowing the variable surface.

 

Main Features:

  • Quickly check and assign geometry
  • Trigger time correction
  • Frequency filter including Butterworth and Ormsby filters with the option of band pass, low pass, high pass, band reject, and notch
  • Gain control: automatic gain control (AGC), trace balance, time variant scaling, single trace scaling, etc.
  • Undo/Redo multi-step operations on seismic data
  • Interactively pick first breaks with a trace magnifier
  • Multi-approaches to build initial model
  • Robust grid ray tracing
  • Regularized iterative inversion with constraints
  • Suitable for multiple vertical or deviated wells
  • QC the picked and calculated first arrivals directly on seismic traces
  • Fitting error analysis
  • Interactively pause or resume the procedure during tomography
  • Simultaneously update the display of first breaks and ray paths
  • Review the inverted model in each iteration
  • Plot color section with contours and editable stratigraphic symbols
  • Output color section overlaid with ray paths

 

 

seismic data, first arrival, velocity model

  

Geogiga VSP 8.2 - Vertical Seismic Profiling Software

Geogiga VSP can handle zero-offset and offset VSP survey. It utilizes F-K filter and median filter to separate upgoing and downgoing waves, and then deconvolves the upgoing waves by applying wavelet designed on downgoing waves, finally builds the corridor stack or VSP-CDP mapping.

Unlike the well velocity survey method, VSP records nearly all seismic waveforms instead of just first breaks. In the VSP survey, the receiver is located down the borehole and closer to the target so the accuracy is improved relative to the surface reflection measurement.

 

Main Features:

  • Support zero-offfset and offset VSP survey
  • Frequency filter including Butterworth and Ormsby filters with the option of band pass, low pass, high pass, band reject, and notch
  • Gain control: automatic gain control (AGC), trace balance, time variant scaling, single trace scaling, etc.
  • Static time shift
  • Undo/Redo multi-step operations on seismic data
  • Interactively pick first breaks with a trace magnifier
  • Calculate interval velocity and average velocity
  • Separate upgoing and downgoing waves with F-K filter and median filter
  • Deconvolve upgoing waves by applying wavelet designed on downgoing waves
  • Corridor mute
  • Corridor stack
  • VSP-CDP transform

 

Separate upgoing and downgoing waves 
with F-K filter

 

 

Geogiga PS Log 8.2 - Well Velocity Survey Software

Geogiga PS Log is designed to efficiently process the data in the well velocity survey.

After defining the depth of receivers and the direction of shot, you are able to pick first breaks with the mouse button on P and S waves simultaneously in the analysis window, meanwhile, the interval velocity, average velocity and Poisson's ratio are automatically calculated. All curves including time-distance, velocity, and Poisson's ratio are displayed in a separate window with lots of controls.

 

Main Features:

  • Quickly define the depth of receivers and the direction of shot
  • Frequency filter including Butterworth and Ormsby filters with the option of band pass, low pass, high pass, band reject, and notch
  • Gain control: automatic gain control (AGC), trace balance, time variant scaling, single trace scaling, etc.
  • Undo/Redo multi-step operations on seismic data
  • Simultaneously display P and S wave at all depths
  • Interactively pick the first break of P and S waves with a trace magnifier
  • Automatically calculate interval velocity, average velocity, and Poisson's ratio
  • Calculate the Elastic Modulus including Shear Modulus, Young's Modulus and Bulk Modulus
  • Manually assign layers based on regression lines.
  • Plot and output first arrivals, interval velocity, average velocity, and Poisson's ratio

 

Pick first break and calculate velocity

IND.A.G.O. s.n.c.
Via Luigi Balzan, 1
45100 - Rovigo
Rovigo - Italia
C.F. / P.Iva: 01174740298
Tel: +39 0425.25185
Fax: +39 0425.25185
info@indago-rovigo.it