PUMPING ASSEMBLY FOR SIMULTANEOUS-SEPARATE OPERATION IN TWO BEDS IN WELL (VERSIONS) Russian patent published in 2008 - IPC E21B43/14 

FIELD: oil and gas industry.

SUBSTANCE: invention facilitates simplification of design and installation of assembly. The essence of the invention according to one of variants is as follows: the assembly contains a producing tubes column, a cable, a packer, a tail piece and two pumps, the upper one of which is made as a sucker-rod pump, while the lower - as electroloading pump with electric motor, a cable and a case. According to the invention, allowing mixing of beds products, the assembly is equipped with a unit for sealing the cable which is arranged in an input module of the electroloading pump. Besides, the assembly has a channel with a back valve for connecting of output of the electroloading pump with the producing tubes column, and a channel for intake and swapping of products with the sucker-rod pump from the upper bed via the down the hole-space into the producing tubes column. The case is made enveloping only the electric motor and is connected with under the packer space through the tail piece. There is provided the possibility of lower bed products flow into the producing tubes column via this tail piece, the case and the channel with the back valve. According to the second variant, when mixing of bed products is not allowed, rods of the upper pump are made hollow.

EFFECT: facilitating possibility of intake and swapping of products with sucker-rod pump from upper bed via tube space into rods of this pump.

2 cl, 2 dwg