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Geogiga Front End 2.6 - Seismic Data Preprocessing Softwarefree
Geogiga Front End is designed to QC and preprocess single shot record. You can assign geometry, mute seismic traces, run band-pass filter, gain control, and so on. Some batch commands are available, such as the geometry assignment and seismic data resampling.
Geogiga Front End is freeware. You are welcome to download, use, and distribute it.
Main Features:
Display seismic data with many controls
QC geometry
Batch geometry assignment, layout chart preview
Swap traces
Shift a trace
Scale, mute, average, or reverse seismic traces inside/outside any shape of region
Gain control: automatic gain control (AGC), trace balance, and time variant scaling, etc.
Band-pass filter
Trigger delay correction
Divergence correction and normalization
Undo/Redo multi-step operations on seismic data
Resample a single seismic data file or multiple files in a batch
Integrate multiple seismic data files
Support SEG-2, SEG-Y, and other data formats
Convert other data formats to SEG-2 or SEG-Y
Print and save seismic trace plotting
link:
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Geogiga VSP 1.1 - Vertical Seismic Profiling Software
Geogiga VSP can handle zero-offset and offset VSP survey. It utilizes F-K filter and median filter to separate downgoing and upgoing waves, and then deconvolves the upgoing waves by applying wavelet designed on downgoing waves, finally builds the corridor stack or VSP-CDP mapping.
Unlike well velocity survey method, VSP records nearly all seismic waveforms instead of just the first break. In VSP survey, the receiver is located down the borehole and closer to the target so the accuracy is improved relative to surface reflection measurement.
Main Features:
Support zero-offfset and offset VSP survey
Band-pass filter
Gain control: AGC, trace balance, time variant scaling, etc.
Static time shifting
Undo/Redo multi-step operations on seismic data
Interactively pick the first break
Velocity analysis, calculate interval velocity and average velocity
Separate downgoing and upgoing wave with F-K filter and median filter
Deconvolve upgoing waves by applying wavelet designed on downgoing waves
Corridor mute
Corridor stack
VSP-CDP mapping
link:
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Geogiga Reflector 5.5 - 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
Band-pass filter and time variant 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 by velocity spectrum and velocity scan
NMO correction and inverse NMO correction
Residual statics correction with flat or floating time window
Stack
Post-stack migration
Create instantaneous attributes(amplitude, phase, and frequency)
Convert time to depth
Save extra-large seismic image
Save a single gather in the order of CDP, common offset, common shot, or common receiver
Benefits:
Integrate all modules to make the processing more efficient
High-performance and user-friendly graphic interface
Display seismic data with lots of controls
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
Overlay stack with velocity
link:
[This link Point to another website Only registered and activated users can see links. ]
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