DEVICE FOR OPERATION OF WELL, EQUIPPED BY ELECTRICAL CENTRIFUGAL PUMP Russian patent published in 2010 - IPC E21B47/00 

FIELD: oil-and-gas production.

SUBSTANCE: in casing of electrical centrifugal pump (ECP) it is implemented chamber in the form of turned up cup. At the bottom of cup it is drilled opening through which it is passed rope connected to independent device (ID) and passing through tube space on surface. In casing of ECP it is also implemented slot around which it is located the first part of accumulator charging transformers (ACT) coils of feeding of ID and signal transformer. In ID it is implemented element retaliatory to slot in casing of ECP in which it is located the second part of ACT coils of ID feeding and signal transformer. Slot and retaliatory element are implemented with ability of alignment of transformers coils in ID and ECP at lifting of device up to the rest upwards. Coils of ACT for feeding of ID and signal transformer, located in casing of ECP, there are connected to one of cable cord with voltage, feeding phase winding of motor of ECP, through limiting resistor and obstructing capacitor so that by means of inductive coupling one of coils, located in casing of ID, provides through rectifier charging of accumulator and feeding of ID, and the other - information transfer, registered in memory of ID, through cable cord of ECP and capacitor to inlet of the secondary device, and coils of ACT for ID feeding and signal transformer in ID are connected to corresponding accumulator and electronic circuit of ID.

EFFECT: providing of accumulator charging of bottomhole independent device and passing of information from it to the surface during implementation o investigations without extraction of independent device from the well.

3 dwg