DOWN-HOLE PUMP STATION FOR SIMULTANEOUS-SEPARATED OIL PRODUCTION Russian patent published in 2014 - IPC E21B43/14 E21B34/10 

FIELD: oil and gas industry.

SUBSTANCE: down-hole pump station includes bottom-hole pump, pipe branch attached to electric motor from below and having through holes at the top part, telescope-type connection and going through packer, disconnecting top and bottom productive formations, tube of small diameter connecting the pipe branch internal cavity to surface, geophysical cable routed outside the station into pipe branch cavity, bottom-hole devices. Note that in the pipe branch below the through holes there is a chamber with bellows, the internal cavity of which is connected to the small diameter tube and bottom external side ends with shutoff valve capable of seat pocket closing in chamber bottom part. Note that inside the chamber there are the bottom-hole devices connected to the geophysical cable. Note that one of them is connected to the chamber external side for pressure measurement in well shaft and the other is connected to the chamber internal cavity for pressure and moisture content measurement of bottom bed oil.

EFFECT: station simplification and reliability increase, provision of possibility to measure parameters of simultaneous operation of both beds.

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