PLANT FOR SIMULTANEOUS-SEPARATE EXTRACTION OF TWO WELL RESERVOIRS Russian patent published in 2016 - IPC E21B43/14 E21B34/16 

FIELD: oil and gas industry.

SUBSTANCE: group of inventions can be used for simultaneous separate operation of two well beds. Assembly contains a string, cable, shank, packer installed outside liner between beds, and pump to pump bed products. Plant includes a device for bed switching which in case of using electric centrifugal pump is connected with the housing enclosing only electric motor together with a cable and ending at the input module, and in case of using a sucker-rod pump - with pump inlet. Device for bed switching consists of a head, a nipple and a base connected by upper and lower bodies. Head comprises inlet channels connected to an upper bed. Inlet channels, through two mutually inverse ball valves, are connected through the upper body and the head with output. Base is connected with stem equipped with pressure sensors, internal cavity of which is connected with inner cavity of the lower housing through the ball valve, and with inner cavity of the upper body through the valve in the nipple. Valve in the nipple is driven by piston, cavity over the piston is connected with the internal cavity of the lower case, and below the piston - through the electromagnetic valve and diaphragm with upper bed. Valve in the nipple is rigidly coupled with pusher which opens one of the ball valves of the upper bed at valve closing in the nipple and vice versa. Electromagnetic valve and pressure sensors are connected with the ground cable control unit.

EFFECT: installation higher reliability.

2 cl, 3 dwg