HOSE OIL DEPOSIT DEVELOPMENT METHOD Russian patent published in 2011 - IPC E21B43/20 

FIELD: oil and gas industry.

SUBSTANCE: during development of hose oil deposit the oil is extracted through production wells and working agent is pumped through injection wells. Deposit hose is divided into relatively straight-line sections. Domes are determined in pointed out sections and production wells are drilled in them and/or available wells from earlier drilled well stock are used. Cavities or lowered places are determined and injection wells are drilled in them and/or available wells from earlier drilled well stock are used. Oil is extracted through production wells at stopped injection wells till formation pressure decreases not lower than oil degassing pressure. Production wells are stopped and process exposure is performed till formation pressure along the pointed out section is balanced. Injection wells are brought into operation at stopped production wells. Operation of injection wells is carried out till formation pressure in the development section is restored. Injection wells are stopped and process exposure is performed till pressure along the pointed out section is balanced. Startup and stop cycle of injection and production wells is repeated.

EFFECT: increasing oil recovery of deposit.

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