| 摘要 |
FIELD: oil and gas industry. ^ SUBSTANCE: invention is related to oil industry and may find application in development of oil deposit. Oil is withdrawn through production wells to reduce bed pressure in payout beds by at least 50% from the initial one. Low debit production wells are changed over into injection wells or separate injection wells are drilled. Such wells are wells, in which during pumping of working substance, front of working substance does not have time to reach production wells for at least 3 years. At that in recently commissioned injection wells upper bed is cased with operating string, cemented and perforated, and lower bed is developed by open hole without casing. Pumping of working substance through injection wells is carried out to both beds together with preferable flow of working substance to lower bed and preferable development of lower bed stock. ^ EFFECT: increased oil recovery of deposit with reduced current bed pressure. ^ 1 ex |
