Flowrate of a given fluid component or pseudo-component measured at separator


Whenever is used the fluid component should be explicitly specified to avoid confusions 


For example:

ExpressionAbbreviationMeaning
Oil production rate

Separator measurement of total production of oil from all produced fluid phases

Gas production rate

Separator measurement of total production of gas from all produced fluid phases
Water production rate

Separator measurement of total production of water from all produced fluid phases
Liquid production rate

Water injection rate

Separator measurement of total water injection
Gas injection rate

Separator measurement of total gas injection


The surface flowrates are also used to calculate the total sandface flowrate at downhole conditions.