DEVELOPMENT OF OIL SEAM BY HORIZONTAL WELLS

摘要

FIELD: oil-and-gas industry.;SUBSTANCE: drilling of new wells or selection of drilled wells are executed. Intervals of productive bed are isolated. Pump is lowered in the well. Selected sections are separated by packers. Well products are extracted from every said section. At development of terrigenous or carbonate bed the afflux profile is predetermined. Sections with afflux profile are revealed that differ in specific oil yield by 20% and more. Packers are fitted at points of specific yield variation. One pump is lowered on separate tubing or coiled tubing to the centre of every section. Spacing between lowered pumps over horizontal holes is set not to exceed 200 m.;EFFECT: accelerated oil extraction, uniform development, higher bed oil yield.;2 ex, 2 dwg