SG2PS (STRUCTURAL GEOLOGY TO POST SCRIPT CONVERTER) IS:
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Graphical application for field and well structural data evaluation and processing.
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Free and open source software.
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Easy to use Graphical User Interface, data processing takes just a few clicks.
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Separate processing and plot for different wells, localities, data types, data groups and formation.
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Displays well structural data on well plots, and field data on stereonets and rose diagrams.
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Displaying multiple data groups on the same stereonet
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Bedding correction for tilting test available.
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Trajectory correction for borehole data is supported.
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Kmeans clustering to identify data groups in an inhomogeneous data set.
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Eigth different inversion methodologies and fracture geometry statistics.
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Data input in Excel or any other spreadsheet application of your choice (such as OpenOffice or Gnumeric).
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Output in Adobe Portable Document Format (PDF) for individual files, and a single merged file.
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Optionally, Encapsulated Post Script (EPS) is also available as output format, useful for publications.
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Both output options are possible in grayscale as well (ideal for gray scale publications).
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Rich documentation.
WELL DATA PROCESSING MODULE
Capabilities:
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Average calculation for structural trends: average feature dip direction / dip angle calculation along well bore using fix data number bin or fix interval bins.
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Standard deviation and relative error calculation for the processed bins.
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Feature frequency calculation.
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Derivate curve to show outoftrend zones: investigation of outoftrend zones using first derivate curve of the average and frequency curves.
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Peak detection for deformation zones: changes on average, frequency and derivate curve can indicate a zone of deformation.
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Faults probability: abrupt change in feature geometry and/or frequency can indicate a zone of deformation.
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Using changes both of average and derivate curve, and reliability of those changes, probability of fault zones can be predicted.
FIELD DATA PROCESSING MODULE
Capabilities:
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Angelier or Hoeppner plot, Schmidt or Wulff net, upper or lower hemisphere projections are possible.
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Symmetric / asymmetric (bidirectional / unidirectional) rose diagrams with different bin size are available to plot dip direction or strike of data.
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Contouring data set using four different possible inputs.
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Slickenside data correction on two different ways.
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Full automatic data processing option.
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Average data (e.g. average bedding) calculation using regression.
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Simplified data input and auto completition of input database.
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Paleostress inversion using Turner (1953), Sprang (1972), Michael (1984), Angelier (1990), Fry (1999), Shan et al. (2003) and Mostafa (2005) methodologies
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Bingham directional statistics for fracture sets.
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RUP and ANG stress estimators display, and slickenside clustering using them.
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Resolved shear direction display on stereonet.
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Stress state display on Mohr circle.
