OIL FIELD DEVELOPMENT METHOD Russian patent published in 2006 - IPC E21B43/22 

FIELD: oil production industry, particularly to develop oil deposits having flooded reservoirs with non-uniform permeability.

SUBSTANCE: method involves flooding reservoir; injecting oil-and-bitumen product plug in reservoir, wherein the oil-and-bitumen product is obtained via production wells from highly-viscous oil and bitumen fields; producing oil from productive wells. Samples of oil-and-bitumen product taken from j-production wells are previously analyzed to determine aliphatic property A_j thereof. Then aliphatic properties A_j of the samples are compared with that (A_n) of native oil. If A_j> A_n the oil-and-bitumen product plug is used for water-saturated reservoir zone plugging. If A_j< A_n above plug is used to stimulate difficult-to-recover oil displacement. Plugs of oil-and-bitumen products having A_j> A_n and A_j< A_n may be jointly injected in reservoirs characterized by non-uniform permeability.

EFFECT: increased efficiency due to usage of oil-and-bitumen product having predetermined properties and adapted to increase filtration resistance in flushed zones having high permeability and to improve relative oil permeability in reservoir zone having low permeability.

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