RESERVOIR MANAGEMENT TECHNIQUE Russian patent published in 2012 - IPC E21B43/20 

FIELD: oil production industry.

SUBSTANCE: invention belongs to the oil production industry, and namely to the sphere of reservoir management, complicated by erosion trench of a shoelace type. Essence of the invention: the aforementioned technique involves accumulations research, specification of their oil-productiveness counters, indication of the net oil thickness of the trenches, drilling of injection and exploitation wells, injection of agents into the injection wells and oil withdrawal out of exploitation wells. According to the invention, the shoelace type accumulations are researched along the cross-cut reflection-time section seismic profiles. They additionally help to identify the spots with a maximum productive formation thickness, where the vertical wells are to be drilled, displaced in relation to well spacing. Between the two adjacent vertical wells at an equal intervals an additional vertical and horizontal wells are drilled in a mid-perpendicular plane connecting the adjacent wells. Drilled wells are used as exploitation wells; upon the water encroachment of bed or decrease in productivity some wells are used for injection of a driving agent.

EFFECT: enhancing the efficiency of reservoir management due to optimal location and exploitation of the vertical and horizontal wells, what results in a fuller oil reserve recovery.

1 dwg, 1 ex, 1 dwg