DEVELOPMENT METHOD OF HETEROGENEOUS OIL FIELD Russian patent published in 2009 - IPC E21B43/20 

FIELD: oil-and-gas production.

SUBSTANCE: method includes boring of forcing and producing wells, flooding and oil extraction to the surface, updating of geological feature on the basis of results of drilling and modeling. From old producing and forcing wells, closest to the area with in-place high permeability and located in the area with in-place low permeability, there are drilled horizontal bores, directed to the areas with -place high permeability. After what from these horizontal bores in area with -place high permeability there are drilled side bores and these wells are operated as producing up to reduction of oil yield lower the economical profitability. Then these wells are transferred into forcing. From wells, located in area in-place low permeability and the most remote from area with in-place high permeability, there are drilled horizontal bores, enveloping by perimetre area with in-place high permeability, and these wells are operated as forcing.

EFFECT: effectiveness increase of development of heterogenous oil field and simultaneous cost cutting for construction of additional new wells.

1 ex, 1 dwg