METHOD FOR FURTHER OIL FIELD DEVELOPMENT (VARIANTS)

摘要

FIELD: oil industry, particularly to control oil field development at late stage along with geological and engineering operations performing in wells, for instance influx intensification (for well stimulation) and wall isolation operations.;SUBSTANCE: method involves injecting displacing agent into injection wells and producing oil through production wells; controlling production well operation by determination of parameters, which characterize current field development state; plotting isobar maps, water-flooded volume maps and seepage direction maps; determining areas from which water and oil flows into particular well; determining reservoir pressure in areas, from which oil P₂ and water P₁ flows and comparing above pressures. If pressure in area from which water P₁ flows in well exceeds pressure in area from which oil P₂ flows or if pressures in above areas are equal one to another well bottom zone is treated to recover or increase oil recovery from the well and above well is operated under pressure difference of not less than initial one. If pressure in area from which water P₁ flows is less than that in area from which oil P₂ flows water insulation work is performed and above well is operated under pressure difference of not more than initial one.;EFFECT: increased efficiency due to reduced associated water extraction along with retaining oil recovery from reservoir, which results in reduced costs of oil production, transportation and oil preconditioning and decreased water content in oil product.;2 cl, 1 ex, 1 tbl, 8 dwg