OIL DEPOSIT DEVELOPMENT METHOD Russian patent published in 2014 - IPC E21B43/20 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to the oil and gas industry, it can be used for development of oil deposits confined to the dome-shaped highs and at the final stage of deposits development. The concept of the invention is as follows: the method includes drilling of injection and producing wells, oil extraction through producing wells, surveying and determination of sections with dome-shaped highs exceeding actual elevations of the stratum, pumping of waterproofing sealant to wells, use of remaining wells located in direct vicinity from dome-shaped highs related hydrodynamically to producing wells within limits of this producing stratum and flooded completely in production process and used as injection wells to which operating fluid is pumped. According to the invention surveying and determination of sections with dome-shaped highs is made by temperature logging and determination of closed areas with temperature of 30-38°C corresponding to dome-shaped highs. Pumping of waterproofing sealant is made to wells located in cavities and completely flooded wells by suppression of the stratum in order to isolate water influx partially to dome-shaped highs from flooded areas. Branch or horizontal holes are made from these wells to penetrate stratum in the area of dome-shaped highs with further use of such holes as producers.

EFFECT: reducing material costs and increasing oil recovery factor due to water influx isolation from flooded areas of stratum, simplifying determination of dome-shaped high areas.

1 dwg, 2 ex