DOWNHOLE TOOL ACTUATION MECHANISM, SYSTEM AND METHOD Russian patent published in 2024 - IPC E21B23/06 E21B33/12 E21B34/06 

FIELD: oil, gas and coke-chemical industry.

SUBSTANCE: group of inventions relates to oil and gas industry. Electronic start-up system for actuation of a downhole tool comprises a longitudinal housing containing: a detection section, an electronics section and an actuating section. Pressure sensor is located in the detection section and is configured to receive a given pressure signal. Electronic control board contains an accumulator located in the electronics section. Executive section comprises: a pre-filling chamber; a setting piston located in the pre-filling chamber; actuator. Preset amount of pre-filling fluid under hydrostatic pressure is retained between setting piston and actuator in pre-filling chamber. Chamber with atmospheric pressure partially surrounds the pre-filling chamber. Actuator isolates pre-filling fluid under hydrostatic pressure in pre-filling chamber from atmospheric pressure chamber. Device contains a pressure port. Actuation takes place when, after receiving a given pressure signal by the pressure sensor, the electronic control board supplies power to the actuator, forcing the pre-filling fluid medium to flow through the actuator into the atmospheric pressure chamber through the pressure port. Disclosed is a system and a method for actuating a downhole tool.

EFFECT: higher efficiency of downhole tool actuation.

15 cl, 11 dwg