InterpaLog

InterpaLog is a multi-well, two-dimensional log modeling tool used to create accurate seismic section models. Create a model from your WinPICS synthetic seismograms using the cross-sectioning capability of InterpaLog. Define or select a seismic filter that will create a seismic section based on the correlated logs. These seismic sections can then be sent back to WinPICS and displayed as a selectable 2D line on the map window.

The InterpaLog bridge is launched from the WinPICS basemap. Select a series of wells; send them to InterpaLog as a geological cross section.  Modify the cross section and the geophysical parameters to accurately reflect your geological concept, and create the interpolated log model.   The model seismic traces are then returned to the WinPICS basemap as pseudo 2D seismic line with the model correlations saved as seismic horizons.

The horizons on the model accurately track your geological boundaries and are not forced to be simply peaks or troughs or zero crossings.  Use the WinPICS correlation polygon to make comparisons between your model and seismic data. Enhanced model analysis is available using amplitude maps for comparison and the full suite of WinPICS seismic attributes. The 2D model may even be used with the WinPICS similarity mapping pattern recognition algorithms.

For more detailed information, refer to the InterpaLog Users Guide, which can be found in WinPICS on the Application toolbar under Help | Support Documents. View image

Sending your WinPICS Synthetics to InterpaLog (Overview)

  1. Select the InterpaLog icon on the Earth Tools toolbar.
  2. Click on the first synthetic seismogram on your WinPICS basemap. Move your cursor over the next synthetic and continue clicking on each synthetic in the order that you want them to appear in InterpaLog.
  3. Once you have completed selecting the synthetics, right-click the WinPICS Map window and select Display Fence (D) from the shortcut menu to launch InterpaLog. The Model Setup dialog box opens.
  4. Click <OK> to continue. The Log Order dialog box opens.
  5. Click <OK> to continue. The Model Clipping window will opens.
  6. Click <OK> to continue.
  7. If needed, rearrange the order of the wells in the selection by using the Select Wells tool. Click on a log to select it, then drag it to a new location.
  8. Click the Correlation Editor button to display a list of tops for each well, and the elevation for each top. From this window you can turn tops on/off, edit tops elevations, create new correlations and interpolate tops between wells.
  9. Click <OK> to continue.
  10. To create a new surface, click the New Event   button. Choose the type of event you wish to create on the General tab, and any comments on the Notes tab. Click <OK> to close the New Event window. The cursor will then change to a drawing tool. The drawing tool will then behave like a top picker while hovering over the well track, and a freehand drawing tool when hovered between the well tracks. Select <Esc> key when you have completed drawing the correlation.
  11. To extend a correlation, select the surface you want to extend by clicking the Select Surfaces button, and then clicking on the surface to extend. Select the Mouse Input button and draw the correlation, then click the Extend Edges button to build the model.
  12. Editing existing surfaces between wells can be performed by selecting the active event, and choosing the Edit Surface tool.
  13. Create text by selecting the New Text button and clicking on the where the text is to be inserted. Type the new text in the Text Properties dialog box. Click <OK> to close the window and continue.
  14. Set the seismic creation properties by selecting the QuickSeis Config button. Select the type of Datum Correction, Filter, Seismic Parameters, and Time Conversion to use. Click Close to continue.
  15. Click the Quick Seis button to convert the section to a time model.
  16. To send the seismic model to WinPICS, select Model Building | View In WinPICS from the Menu bar.
  17. Click <OK> to send the seismic model to WinPICS.
  18. The model will be displayed on the WinPICS as a selectable 2D line.

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