METHOD OF NARROW OIL FRINGES DEVELOPMENT

摘要

FIELD: oil-producing industry; applicable in development of low-production oil-gas deposits with narrow oil fringes. SUBSTANCE: method includes withdrawal of oil through system of horizontal producing wells. Bores of these wells are drilled perpendicular to gas and oil outlines and located near the fringe middle part. Neighboring wells are drilled into oil fringe in opposite directions. If one of the wells is directed from water-oil outline over ascending trajectory to gas-oil outline, the neighboring one is directed from gas-oil outline over discending trajectory to water-oil outline. Points of entry of horizontal bore into producing formation are located on curvature close to sinusoid described by equation. EFFECT: higher efficiency of development due to prolongation of waterless and gasless oil recovery. 2 cl, 1 dwg