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Creating a Multi-Segment Decline

Multi-Segment Declines can be useful in creating a production forecast that changes characteristics over time.  One example of this is a production forecast for a shale gas well.  This can be approximated by using a Hyperbolic decline for the first two or so years, followed by an Exponential decline.

An example of how to create this forecast is shown below:



To create a multi-segment Decline:

1. Create a basic forecast for your well (gas or oil)
2. Click on the "Add Segment" from the first forecast
   
   
3. 3. Click either or both "Cont" (Continuous) check boxes to make the rates and / or decline rates continuous between segments
4. 4. Adjust remaining parameters for second segment.

See also