Table 1
Coefficients for mineral extraction tax inventive.
| Coefficient | Objective | Application |
|---|---|---|
| Cd | Depletion of reserves | 1, if N/V < 80% |
| 3.8 − 3.5 × N/V, if N/V ≥ 80% | ||
| 0.3, if N/V > 100% | ||
| Cr | Level of reserves | 0.125 × V + 0.375, where V lower than 5 million tons and depletion less than 5% |
| 1, others | ||
| Cde | Degree of difficulty | 0.2, if permeability less than 2 mD and net pay less than 10 m |
| 0.4, if permeability less than 2 mD and net pay more than 10 m | ||
| 0.8, Tyumen formation | ||
| 1, others | ||
| Crd | Hydrocarbon reservoir | 1, if Cde < 1, N/V < 0.8 for a reservoir |
| 3.8–3.5 × N/V, if Cde < 1, 0.8 ≤ N/V ≤ 1 | ||
| 0.3, if Cde < 1, N/V > 1 | ||
| Cde, if a reservoir with Cde = 1 and there are other reservoirs at the field with Cde < 1 | ||
| Ccan | Region of extraction and properties of oil | 0, if viscosity greater than 200 mPa s and less than 10 000 mPa s (under formation condition) |
| 0, for specified period of time or until cumulative production reaches a threshold (whichever occurs first), if oil produced from fields that lie wholly or partially in specified regions | ||
| 1, others |