Research Article
Production Decline Behavior Analysis of a Vertical Well with a Natural Water Influx/Waterflood
Table 3
Basic parameters for the production decline analysis.
| Parameters | Unit | Value |
| Well radius, rw | m | 0.1 | Thickness of the pay zone, h | m | 18 | Reservoir porosity, ϕ | Decimal | 0.253 | Initial reservoir pressure, pi | MPa | 14.6 | Reservoir temperature, T | °C | 80 | Gas gravity, rg | Decimal | 0.57 | Initial water saturation, swi | Decimal | 0.25 | Rock compressibility, cf | MPa−1 | 5.55 × 10−4 | Water compressibility, cw | MPa−1 | 4.67 × 10−4 | Gas compressibility, cg | MPa−1 | 7.12 × 10−4 |
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