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Uncertainties impacting reserves, revenue, and costs (view source)
Revision as of 16:46, 8 May 2014
, 16:46, 8 May 2014→Combining distributions
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<sup>a</sup>Approximated by Swansons rule
<sup>a</sup>Approximated by Swansons rule
Note that multiplying the three ''P''<sub>90%</sub> values for area, net pay, and hydrocarbon recovery does not yield a ''P''<sub>90%</sub> value for reserves; in fact, it gives a product corresponding to 98.7%! Similarly, multiplying the three ''P''<sub>10%</sub> values gives a reserves product that corresponds to ''P''<sub>1.3%</sub>, not ''P''<sub>10%</sub>.
Note that multiplying the three ''P''<sub>90%</sub> values for area, net pay, and hydrocarbon recovery does not yield a ''P''<sub>90%</sub> value for reserves; in fact, it gives a product corresponding to 98.7%! Similarly, multiplying the three ''P''<sub>10%</sub> values gives a reserves product that corresponds to ''P''<sub>1.3%</sub>, not ''P''<sub>10%</sub>.