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 Free SEG-Y File Editors/Viewers/Converters:

GSEGYView is a viewer for seismic data in SEG-Y format, its modifications, and many other related formats aimed to store either petroleum exploration data or seismology data. GSEGYView features graphics hardware acceleration via OpenGL for seismic data rendering, wiggle, variable area and variable density seismic traces representation, two-level sorting of seismic traces by arbitratry keys in trace headers, multiple windows for multiple files with separate display parameters, easy seismic section navigation and zoom with mouse wheel support, and more.

The software presented in this report, referred to as SEGY to ASCII (SAC), converts seismic data written in SEGY format (Barry et al., 1975) to an ASCII data file, and then creates a postscript file of the seismic data using a general plotting package (GMT, Wessel and Smith, 1995). The resulting postscript file may be plotted by any standard postscript plotting program.

A set of about 170 functions (plus support functions called by them) for analysis and display of exploration-seismic data and well logs. These functions read and write seismic data in standard SEG-Y format, read and write well logs in LAS-format 2.0 (also read LAS-format 3.0), and perform many of the manipulations usually performed on these data types. They use standardized structures to represent seismic data and well data and thus allow simple concatenation of function calls.

The Volume Browser displays scalar 3-D datasets, essentially functions of three variables, by means of static and animated slices (the latter can be saved as movies), contour slices, and iso-surfaces.

 Reflection Seismic Data Analysis/Processing:

  • Madagascar - open-source software package for multidimensional data analysis and reproducible computational experiments
  • FreeUSP - collection of signal analysis and seismic processing routines (by BP America, Inc.)
  • HotShot and vHot - a full-featured seismic data processing software that runs on any PC (this is not free, but affordable)
  • Delivery- a trace-based Bayesian seismic inversion code for use in oil reservoir characterisation at the early development and appraisal stage (by CSIRO)
  • WaveletExtractor – extract (for use in “Delivery” software) optimal wavelets from seismic, log data and checkshot (time-to-depth) information (by CSIRO)
  • Seismic Unix (SU)an open source seismic utilities package supported by the Center for Wave Phenomena (CWP) at the Colorado School of Mines (CSM)

 Mapping Tools:

“Team-GIS KBridge is an extension to ArcGIS Desktop that provides tools for transferring data between IHS KINGDOM and Esri’s ArcMap software, using shapefile, file geodatabase and ASCII formats”

30 day-trial request

  • KWeb (by Exprodat)

“…you can view well and seismic data stored in KINGDOM projects without having to start the KINGDOM application”

“Whereoil for Kingdom SMT allows users to search through the metadata in all of your Kingdom SMT projects. Selected datatypes are additionally spatialized, and spatial data is also accessible by other GIS applications. Standard functionality includes crawling and indexing for projects, seismic files, boreholes, log data and surface picks.”

  • GMT (free)
  • Global Mapper (by Blue Marble Geographics; 30 day-trial request)
  • ResMAP (free satellite imagery resource)
  • Dapple (to find and visualize geoscientific data on internet: i.e. spatial, satellite imagery and remote sensing data, maps and earth data sets and view GeoTIFFs and KML files) 
  • Online UTM-LatLong Coordinate Conversion and Datum Transformation (by Steffen Synnatschke)
  • Quantum GIS (by Open Source Geospatial Foundation) - quantum GIS provides a continously growing number of capabilities provided by core functions and plugins. You can visualize, manage, edit, analyse data, and compose printable maps
  • MapWindow (by ISU Geospatial Software Lab)- free, ready-to-use spatial data viewer and geographic information system that can be modified and extended using plugins
  • MicroDEM (by Professor Peter Guth of the Oceanography Department, U.S. Naval Academy) – displays and merges digital elevation models, satellite imagery, scanned maps, vector map data, GIS database

 Free Interpretation Software:

Free CGM Viewer:

 Free Well Log Data Utilities:


“Well data, horizons, faults and 2D grids are exchanged seamlessly with support for auditing. Structural data such as horizons and faults are evaluated for spill point and seal in JewelSuite using its unique ‘snap & seal’ functionality.  The re-interpreted horizons and faults data can then be repopulated in the database, allowing geophysicists and geologists to both have the same version of the data available at all times.”

30-day trial and demontration request

 Free Screen Capture Programs:

Free Tools for Remote Accessing to Client Computers: