FIELD: oil industry, particularly to supply and store power necessary for downhole device and appliance operation in oil well.
SUBSTANCE: power supply system has current impedance device arranged around borehole pipeline structure and adapted for at least partial defining supply part to transfer alternate current through and along conductive pipeline structure part. System also has power storing device adapted to be electrically connected to conductive pipeline structure part, to be discharged with alternate current and to be linked with downhole device so supply power thereto. Embodiments of oil well structure including above system are also disclosed, as well as oil well operation method and power supply method with the use of the described system.
EFFECT: improved stability of power supply to downhole devices and appliances.
37 cl, 8 dwg
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