METHOD OF SIMULTANEOUS SEPARATE OPERATION OF MULTIPLE-ZONE WELLS AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2012 - IPC E21B43/14 

FIELD: oil and gas industry.

SUBSTANCE: pipe string equipped with packer and control device is lowered to the well. Pipe string or control device is equipped with measuring converter at the formation level. The well is equipped with intelligent control system of production of hydrocarbons and maintenance of formation pressure (ICS). ICS is located at formation level immediately at the measuring converter or control device. Information on measurement of parameters is supplied to ICS through communication interface with measuring converter, where preliminary processing of input information is performed. Analysis of the supplied information is performed in compliance with programme algorithm. Control signal is shaped for the control device in compliance with the specified opening or closing rate of control device. At that, reception and transmission of control data is performed. Simultaneous separate well operation device includes measuring device, control device and ICS. ICS includes analysis and logic unit, communication interfaces with measuring converter and with control device. At that, ICS is installed on the formation level immediately at measuring converter or control device and electrically related to them.

EFFECT: improving response accuracy of actuators, enlarging functional capabilities of the device, increasing efficiency of the operating technology and reducing time costs.

8 cl, 2 dwg