The Decline Curve Analysis tool displays a well's production data and applies decline curves to forecast a wells ultimate production. This tool can display the entire production history for a well or display individual production streams that represent sequential or commingled production.
To open the Decline Curve Analysis tool:
·Main module: Tools > Decline Curve Analysis
Sequential and combined production
"Sequential" production refers to wells perforated in the lowest productive reservoir and then produced to depletion and plugged. The next deepest reservoir was perforated and so forth. Each reservoir is sequentially produced until all reservoirs are depleted. "Combined" production refers to wells with simultaneous production from multiple reservoirs, all produced to depletion. This method makes it difficult to calculate the individual contribution of oil, gas, water and/or condensate from any individual reservoir unless production logging methods are used.
Getting Started
Production Analysis toolbar
Selecting wells
Setting the current and available production streams
Changing the X & Y axes
Fitting a curve
Decline curve forecasting
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