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There are many popular decline metrics, including the most popular:
| Arps | conventional reservoirs |
| Duong | tight gas, shales |
| Power Law | tight gas, shales |
| Multi-segment | wide-range |
| Neural-Network | wide-range |
The first historically and the most popular decline curve methodology in conventional reservoirs is Arps decline model:
| Fig. 1. Arp's Exponential decline | Fig. 2. Arp's Harmonic decline | Fig. 3. Arp's Hyperbolic decline |
See Also
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Petroleum Industry / Upstream / Production / Subsurface Production / Field Study & Modelling / Production Analysis
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