FIELD: oil-and-gas industry.
SUBSTANCE: invention relates to extraction of hydrocarbons and may be used in separate oil extraction from both one bed and several isolated beds using one well. Proposed plant comprises packer, two pumps for every productive bed arranged on string, packer arranged between top and bottom pumps, and electric cable. In compliance with this invention both centrifugal pumps are engaged with one downhole motor. Motor is fitted on shaft shared by said pumps. Said shaft passes through packer. Motor is coaxially coupled with centrifugal pumps via said shaft. Top pump inlet module is located above packer. Pumps are equipped with units of remote-control system geophysical transducers connected via data transfer lines with remote control system receiver. Pump inlet modules are equipped with oil flow rate controllers with controlled flow section arranged coaxially with shaft rotational axis and coupled with service drives.
EFFECT: higher efficiency, simplified design, control operating conditions of pumps.
5 cl, 1 dwg
Authors
Dates
2012-12-20—Published
2011-05-31—Filed