发明名称 |
METHOD FOR DEVELOPMENT OF OIL DEPOSIT |
摘要 |
FIELD: oil production industry. SUBSTANCE: oil deposit is developed by recovering oil through producing wells and injecting working agent through injection wells. Beyond expected line of displacement for non-reservoir, analyzed is depth of sand body roof at elevation marks of productive bed, and value of aforesaid depth is compared with value of depth of water-oil contact. At depth of sand body roof higher than depth of water-oil contact and at thickness of larger than 4 m, prospecting bore-hole is drilled at distance to 2-4-fold distance between wells in pattern of well arrangement. In oil bed with reduced bed pressure, drilled in prospecting bore-hole are additional inclined bore-holes from same base. In this case distance between bottom holes in oil bed corresponds to 2-4-fold distance between wells in pattern of existing wells. Oil recovery from drilled wells is carried out until production rate is reduced for not more than 20%. Development of oil deposit is continued in conditions of maintaining bed pressure value. Application of aforesaid method allows for increased oil recovery from deposit. EFFECT: higher efficiency.
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申请公布号 |
RU2123584(C1) |
申请公布日期 |
1998.12.20 |
申请号 |
RU19980111625 |
申请日期 |
1998.06.26 |
申请人 |
NAUCHNO-TEKHNICHESKAJA ASSOTSIATSIJA VOSTOCHNOJ NE;NT ASSOTSIATSIJA VOS NE |
发明人 |
FILIMONOV L.I.;GORODNIKOV M.A.;MANGAZEEV P.V. |
分类号 |
E21B43/20;(IPC1-7):E21B43/20 |
主分类号 |
E21B43/20 |
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