PUMP PLANT FOR SIMULTANEOUS OR SEPARATE PUMPING OF DISPLACEMENT AGENT TO TWO INTERVALS OF WELL Russian patent published in 2010 - IPC E21B43/14 E21B33/122 

FIELD: oil and gas industry.

SUBSTANCE: pump plant for simultaneous or separate pumping of displacement agent to two intervals of the well includes two-channel wellhead equipment, the main flow column equipped with the main packer which is installed between formations and interconnected with the space under packer, additional flow column arranged concentrically outside the main and equipped outside with additional packer which is installed above upper formation; at that, the main and additional flow columns are interconnected with the main and additional delivery lines which are interconnected through the distributing assembly with delivery pipeline. The main packer is installed between groups of formations with various filtration reservoir properties, and delivery line interconnected through flow column with a group of formations with lower permeability is equipped with additional high-pressure pump lowered to the bore hole which is interconnected with delivery pipeline and additionally with water line. Between distribution assembly and high-pressure pump the delivery lines are interconnected to each other with a connection pipe with a gate valve. The main and additional delivery lines can be connected in parallel after the connection pipe to similar delivery lines of similar wells. Pump plant is used for supply to the well of displacement agent of low-pressure pipelines and protected against short-time interruptions in supply of displacement agent to the pump plant owing to using the bore hole with high-pressure pump and parallel pumping lines provided with possibility of interconnection in case of interruption of the supply of displacement agent from delivery pipeline or bore hole.

EFFECT: improving the operating reliability of the plant.

2 cl, 2 dwg