OIL FIELD DEVELOPMENT METHOD Russian patent published in 2010 - IPC E21B43/20 

FIELD: oil-and-gas industry.

SUBSTANCE: invention related to oil industry, particularly to watered oil field development method. Method includes assessment of well production rate at the defined time interval, by oil, fluid and water, Hurst factor - reservoir pressure maintenance system, fluid withdrawal compensation factor, compared with its designed value, oil and water production rate threshold value. Compare every well production flow rate with its threshold value. Separate wells on four groups: oil and water high flow rate, oil high flow rate and water low flow rate, water high flow rate and oil low flow rate, oil and water low flow rate. Define analytically water and oil discriminants for each well. Regulate production wells of first 3 groups and injection wells regimes. If the compensation factor value less then designed one and Hurst factor is less than 0.4, increase water pumped via injection wells volumes, and regulate fluid withdrawal from production wells according to discriminant criteria. When oil discriminant is greater than zero and water discriminant is less then zero limit fluid withdrawal. When oil discriminant is less than zero and water discriminant is greater than zero increase fluid withdrawal in condition of keeping Hurst factor value greater then 0.6. When compensation factor is greater than designed one and Hurst factor value less than 0.4, limit water pumping in via injection wells. When oil discriminant is greater than zero and water discriminant is less than zero limit water withdrawal in condition of Hurst factor value 0.6 and maintained at that level. Define location of reservoir stagnant and badly drained zones with high residual oil content and current oil reserves, interaction between production wells and interaction between production and injection wells. Execute interventions, including reservoir oil recovery increase operations and oil production intensification, taking into account wells dislocation in mentioned above zones and wells interaction.

EFFECT: reservoir oil recovery increase and oil production intensification.

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