PLANT FOR SIMULTANEOUSLY SEPARATED BED EXPLOITATION Russian patent published in 2011 - IPC E21B43/14 

FIELD: engines and pumps.

SUBSTANCE: invention refers to well pumping units. The unit includes tubing, main packer, pipe tail with main channel connected to below-packer bed, rod pump equipped with pressure valve, main suction valve and side suction valve. Rod pump is equipped with hollow plunger connected to hollow bars. There is a hollow body between pump cylinder and main suction valve. In the cylinder below the side channel hole there located is dividing piston with the possibility of limited lateral movement upwards and downwards into body cavity. In the wells with three tapped beds the plant is equipped with additional tubing, there is additional packer above the main packer, pipe tail is equipped with additional channel. Pump cylinder that is above the main side valve is equipped with the same additional side suction valve and additional dividing piston. Cylinder cavity is connected via the hole to additional tubing through additional bypass channel with back-pressure valve. One of the pump suction valves is connected to over-packer space, the second is connected through additional pipe tail channel to inter-packer space, the third is connected through main pipe tail channel to below-packer space not connected to other suction valve.

EFFECT: provision of possibility to exploit three objects concurrently, each in its optimal mode not mixing their products.

1 dwg