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The input data for the calculation of prediction for oil
production flowrate for the worked well-day are:
Years of development Flowrate for the worked well-
day

The coefficient a and b are determined from a system of
equations:
logq oil (t )  logan b logt ,
 2
 logq oil (t ) logt  loga logt b (logt ) ; (7.2)
where n – the amount of years.
For solving the system of equations (7.2) the actual flow
rate data changes over time more convenient to file as a Table 7.1.
Table 7.1 – Initial data for forecasting
2
t, Flowrate, log q oil (t) logt logtlog q oil (t) (logt)
years q oil (t)
1
2
3
.
. log q oil (t) logt logtlog q oil (t) (logt)
2
n

Determining coefficients a, b for the formula (7.1) can
calculate the theoretical value of oil and comparing the theoretical
and actual production is set convergence results (Fig. 7.1).

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