Improvement of non-CO₂ greenhouse gas emission estimates for oil and gas operations in Russia

Figures & data

Table 1. The country-specific parameters for estimation greenhouse gas emissions from operations with oil in the Russian Federation.

Parameter in the Equations (3)–(5)	Replaced with country-specific parameter	Explanatory comment
GOR • Q oil		Provided in national statistics
42.3 × 10^−6	41.6 × 10^−6	Oil density recalculated to the temperature 20°C and pressure 101,325 kPa
y gas	y CH4 = 0.583	Derived from the national data on composition of the associated gas
X flared		Recalculated based on national statistics on associated gas operations

Figure 1. Comparison of the tier 1 and the combination of tier 1 and tier 2 calculations of non-CO₂ emissions from oil and natural gas production, transport, storage and flaring of associated and natural gas in Russia.

Table 2. The results of uncertainty assessment of the estimates made with the use of two approaches.

Method of emission estimation	Combined uncertainty, %	Uncertainty introduced into the trend in total national emissions, %
Tier 1 method	23	32
Combination of tier 1 and tier 2 methods	15	22