Research Article
Research on the Definition of Economic Limits for the Development of Unconventional Natural Gas under New Situations
Table 3
Distribution types of development parameters of unconventional natural gas.
| | Original data | Distribution type | Data format | Range |
| | Reserve | Logarithmic normal distribution | (P10, P50, P90) | >0 | | Sales price | Mean jump reversion | | >0 | | Depth | Normal distribution | X∼N(μ, σ2) | >0 | | Quality | Normal distribution | X∼N(μ, σ2) | — | | Stable production time | Trapezoid-like distribution | (min, mean, mean, max) | [0,1] | | Gas recovery rate | Triangular distribution | (min, mean, max) | (0,1) | | Lapse rate | Triangular distribution | (min, mean, max) | (0,1) |
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