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Quantitative analysis of fault throw, juxtaposition and seal through geological time

 

Fault Analysis

Our Fault Analysis module allows rapid evaluation of throw distribution, across-fault juxtaposition and fault sealing capacity in 3D. Combined with statistical analysis of fault displacement and scaling relationships, the tool provides powerful validation of geological interpretations and insights into the economic significance of faults.

Uniquely, the module can be integrated with restoration workflows using Move’s 3D Kinematic Modelling and Stress Analysis modules to provide a complete temporal fault displacement and seal investigation. This workflow delivers key information on potential baffles or conduits to flow at the time of hydrocarbon generation and migration. The sealing potential of faults and joints encountered in a wide range of mineral and ore systems can also be investigated using this approach.

Complemented by the new features, Fault Analysis in Move2017 allows rapid temporal evaluation of throw distribution, across-fault juxtaposition and fault sealing capacity. Combined with statistical analysis of fault displacement and scaling relationships, the tool provides robust validation of geological interpretations and insight into the economic significance of faults.

Features

  • Create fault cut-off lines using hanging wall and footwall trim and inclusion distances unique per side of fault.
  • Calculate heave polygons for all faults and horizons in a model.
  • Plot 3D throw colour maps and evaluate throw distributions using fault displacement charts.
  • Plot a range of 3D seal proxy and juxtaposition colour maps including:
    - Shale Gouge Ratio
    - Shale Smear Factor
    - Probabilistic Shale Smear Factor (Move2017)
    - Clay Smear Potential
    - Permeability (Move2017)
    - Hydrocarbon Column Height (Move2017)
  • Construct overlain seal proxy diagrams, filter diagrams to show only areas of interest (e.g. SGR on Sand-Sand juxtapositions) and estimate surface areas.
  • Construct Fault Triangle diagrams to rapidly evaluate sealing potential from well data. Incorporate hanging wall thickness variations for more accurate analysis of growth faults.
  • Rapidly restore fault displacement and physical compaction through time using Fault History diagrams to evaluate temporal fault displacement distributions and sealing capacity (Move2017).

New for 2017

  • A Fault History diagram has been added to allow rapid evaluation of fault throw and seal distributions through time.
  • Restoration results can be used to create more accurate temporal Throw Profiles and Fault Growth plots.
  • Three new methods have been added to interrogate fault sealing properties: Probabilistic Shale Smear Factor, Hydrocarbon Column Height and Permeability.
  • Create filtered seal and juxtaposition colour maps and compose multi-layered visualizations.
  • Surface areas of specific proxy or juxtaposition values can be estimated using the Area Analysis tool.
  • Individually define trim and inclusion distances per side of each fault and highlight included data points.
  • Import custom length/throw data into the Fault Scaling chart to compare analysed faults to previously measured length/throw relationships.