FIELD: oil and gas extractive industry.
SUBSTANCE: method includes feeding electric energy from chemical power elements. Consecutive activation of chemical elements is performed by supplying bed fluids into chemical power elements and main component impregnation. Power accumulation of energy generated by chemical elements may be performed. Switching of chemical elements may be performed either in time or based on voltage fall. Device is mounted in the well and contains chemical power elements mounted in bodies having hollows, and in common body fixed with space inside the well. Hollows in chemical power elements bodies are filled by main component and made with possible interconnection through one or several inlet apertures in bodies and in common body with ring-shaped space between common body and well for impregnation of main component of chemical power elements by bed fluids. Inside common body serially connected power accumulator, voltage control block and control block may be mounted. Inlet apertures in bodies of different chemical elements may have different diameter. Inlet apertures may be closed by valves with drives. Device may have capability for consecutive activation of chemical elements by giving commands to valves drives from control device and/or timer. In inlet apertures filters may also be mounted.
EFFECT: higher operation resource, lesser weight and dimensions of power sources.
2 cl, 6 dwg
