Decline Graph Options

On the production page, a decline graph is displayed in the top right. To configure this graph, there are several options than can be found by clicking the “Options>>” button in the top right.

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Once the button has been clicked, the decline parameters will hide and the options will appear on the right.

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Scaling

• Autoscale X
  • This will make two fields available to indicate the first and last values along the x-axis (eg. 2017, 2042).

• Autoscale Y
  • This makes two fields editable; the Y-axis, and Y2-axis.  The Y-axis is the main (left) axis, and the Y2-axis is the secondary (right) axis.  These fields are the minimum and maximum values you want for the given axis (eg. 0, 4000).

• X-axis Cum. Prod
  • This will change the x-axis to the cumulative production of a given product.  You will be able to see the rate of production for all products once a certain amount of the selected product has been produced.  In other words, you can know what your Oil production rate will be when you have produced 400 mboe.

• Log Y-axis
  • This will convert he Y-axis in a logarithmic scale, rather than linear.

• Gas/WOR/GOR/WCT on Y2-axis
  • If your y axis values are too different to see clearly on a single scale (eg. 500 bbl/d Oil, and 20,000 cf/d Gas), using this option will separate the scales onto different y axes.

Products

• Add/remove any given product or ratio to the decline graph

Options

• Show Decline
  • Shows the decline curve as it is currently on the decline data tab

• Show History
  • Shows any historical data associated with the Asset

• Show results
  • Shows the most recent calculated results as dotted lines, which may be different if the decline curve has been altered since the last calculated

• Show Points
  • Shows each data point along the curve

• Show fit through history
  • Extrapolates the forecasted decline curve backwards in time to the first period with historical data.  This is not a line of best fit through the actuals, but an extension the current forecasted decline curve.