METHOD FOR DEVELOPMENT OF LAMINAR CARBONATE OIL DEPOSIT Russian patent published in 2016 - IPC E21B43/20 E21B43/14 

FIELD: oil industry.

SUBSTANCE: invention relates to oil industry and can be used in developing oil deposit wells with side horizontal shafts (SHS). Method is used to drill vertical production and injection wells. Working fluid is pumped into injection wells and product is extracted from production wells. Drilling from main vertical shafts of production wells of SHS. After combined development of all oil-saturated interlayers main vertical shaft to flooding of well by at least 95 % of vertical shaft of production well in each layer are drilled SHS at angle of 20-80° in horizontal plane to conditional straight line drawn between production and nearest injection well. Length of SHS is determined in inverse proportion to rate flooding interlayers fixed during operation of main vertical shaft. In interlayer with maximum rate of flooding drilled SHS with minimum length, but not less than 50 m. In interlayer with minimum rate flooding drilled SHS with maximum length, but not less than 100 m. Between interlayers in vertical shaft set shaped shutters are installed. In each SHS are moved packer, which during each barrel watering reaches more than 95 % is displaced successively from "point" to "bottom" to distance of 10-50 m.

EFFECT: technical result is increase of uniformity of oil reserves, reduced water inflow to producing wells and increasing sweep efficiency and oil recovery.

1 cl, 1 ex, 1 dwg