Using Multiple Well Crossplots

Cross-plotting curves from wells can identify relationships in well data.

Tip: The cursor is linked between well views and well crossplots. When moving the cursor in a well view, the crossplot cursor moves to the corresponding crossplot coordinates.

Note: Well curves can only be crossplotted against other well curves. Contact support@dug.com to express your interest in crossplotting wells against other data.

Creating the crossplot

  1. Open an existing crossplot or create a new one.
  2. Open the Data tab.
  3. Configure the Horizontal and Vertical Data Sets:
    • Data Type: Well Curve
    • Data Source: Choose the curve class for each axis

Adding and configuring wells

  1. In the Wells section, click the blue + icon to add a well.
    • Green/yellow circle: Include/exclude values from a well
    • Well column: Select the well
    • X axis: Select the horizontal curve for this well
    • Y axis: Select the vertical curve for this well
    • Red x: Remove well
  2. Set Start and Stop to choose an interval to crossplot
  3. Start and Stop locations:
    • Top of Well: The shallowest well position
    • TD of Well: The deepest well position
    • Depth: A single depth value (MDKB, TVDSS, TVDBML)
    • Horizon: Choose a horizon (with optional offset)
    • Marker: Choose a marker (with optional offset)
  4. Data Range: The interval used to select values is shown in MD.

Note: Yellow highlight indicates the setting is incomplete, make sure the value is complete or valid.

Colouring points by another curve

When crossplotting wells, use a third curve to colour the points.

  1. Configure a well crossplot.
  2. Set Plot Type to Point by Point.
  3. Colour Data Set is shown.
  4. Data Type: Well Curve.
  5. Data Source: Choose the curve class for the colour data.
  1. At each well, a third curve selector is added to the wells.

Colouring points by well

When crossplotting wells, use Well ID to identify the source of data points.

  1. Configure a well crossplot.
  2. Set Plot Type to Point by Point.
  3. Colour Data Set is shown.
  4. Data Type: Well Curve.
  5. Data Source: Choose the class Well ID.
  1. At each well, a third curve selector is added to the wells.
  2. Select the curve Well ID.

Tip: Well ID can also be used for horizontal and vertical axis data.