PUMPING BLOCK FOR WELL OPERATION (VARIANTS) Russian patent published in 2007 - IPC F04D13/10 

FIELD: technology for extracting hydrocarbons during pump exploitation of well with one or several formations.

SUBSTANCE: pumping block contains pimping device lowered and installed in a well on pipes column, and at least one packer. Pumping device mainly consists of pump with receiving mesh and immersed electric engine with force cable and is situated inside protective pipe with cable input and lower and upper subs. Upper sub of protective pipe is connected to pipes column from above and to pumping block from below, while lower sub is connected to pipe above the packer, while the packer is mounted below the pumping device. Pumping plant may be additionally equipped with one or several elements - mounting nipple, measuring chamber, bypass unit, one or several well chambers for detachable valve, column disconnector, moveable hermetic connection, gas separator, injector and sand filter.

EFFECT: increased reliability of plant operation and increased efficiency of operation of oil product or force well with one or several formations.

3 cl, 11 dwg