Module 12: Seismic Attribute Analysis

Dive deep into seismic attribute analysis with strata-grid attributes, stratigraphic and interval attribute analysis, and innovative visualization techniques. This module allows users to create stratigraphic grids, perform detailed attribute analysis, and visualize frequency tuning cubes. Cross-plotting and waveform correlation mapping offer additional layers of analysis, aiding in the identification of reservoir properties and potential sweet spots.

Key Features

Strata-grid Attributes

    • Create a versatile stratigraphic grid from one or multiple horizons, with options for proportional, parallel to top, parallel to bottom, or parallel to external surface contacts.
    • Extract attributes from 3-D volumes to the strata-grid for detailed analysis.
    • Export interpolated horizons for further use.
    • Define new intervals using two slices within the strata-grid for precise analysis.
  1. Stratigraphic Analysis
    • Flatten the strata-grid on either top or bottom for enhanced visualization and analysis.
    • Animate stratigraphic slicing in seismic sections, base maps, and 3-D windows interactively for dynamic exploration.
  2. Interval Attributes
    • Define interval objects from one or multiple horizons and calculate statistics of seismic attributes within the interval, resulting in insightful “interval attributes.”
  3. Horizon Attributes
    • Sample seismic attributes from multiple attribute volumes instantaneously or within specified time or depth windows along horizons.
    • Calculate instantaneous attributes along horizons without generating attributes, enabling efficient analysis across multiple horizons and volumes simultaneously.
  4. Tuning Cube
    • Generate a frequency tuning cube from spectral decomposition for horizons, intervals, or strata-grids.
    • Visualize and animate iso-frequency amplitude slices in seismic sections, base maps, and 3-D windows for detailed analysis.
  5. Frequency Decay Mapping
    • Calculate frequency decay maps from selected horizons to identify areas affected by “frequency shadow” due to gas accumulation.
    • Visualize frequency decay trend lines in each trace for precise interpretation.
  6. 2-D and 3-D Cross Plotting & Polygon Classification
    • Define multiple facies polygons in 2-D or 3-D cross plots for attributes of volumes, horizons, strata grids, or intervals, enabling detailed analysis and classification.
    • Real-time projection of samples from cross plots onto base maps or 3-D windows.
    • Convert samples defined in cross plots to facies maps or grids and estimate and visualize probability density functions (PDFs) for each facies.
  7. Waveform Correlation Mapping
    • Generate waveform correlation maps for every trace in the seismic volume between two horizons using model traces from wells with known facies or reservoir properties.
    • Resulting correlation maps provide valuable insights into the classification of model traces.