ASSEMBLY AND METHOD FOR FLOW INTENSIFICATION BY HYDRAULIC FRACTURING IN SEVERAL ZONES USING INDEPENDENT UNITS IN PIPE SYSTEMS Russian patent published in 2015 - IPC E21B23/04 E21B43/11 E21B47/09 

FIELD: oil and gas industry.

SUBSTANCE: tool assembly for performance of operations in the borehole comprises: driven tool; locating unit intended to define position of the driven tool in pipe based on physical signature generated along the whole length of pipe system; and on-board controller designed to transmit signal on actuation of the tool at the moment when the locating unit identifies setting for the selected position of the tool against physical signature and speed of the tool, and to determine time of transmission for tool-actuating signal. The driven tool, locating unit and on-board controller are made so that they may be deployed as independent operating unit in a pipe. The driven tool is designed to respond to the actuating signal from the on-board controller for independent operation in pipes. The driven tool, locating unit and on-board controller are made self-destroying in response or in connection with actuation of the driven tool so that fragments upon destroy are essentially fine, so that it is not required to perform additional operation on their removal from the pipe. Moreover the driven tool is used in continuous simultaneous operation of formation completion and treatment in order to intensify inflow along the borehole without interruption in operation.

EFFECT: development of independent borehole tool designed as self-destroying tool, without required separate operation on removal of the tool.

30 cl, 35 dwg