WELL ACTUATOR DEVICE Russian patent published in 2015 - IPC E21B23/08 E21B34/14 

FIELD: oil and gas industry.

SUBSTANCE: group of inventions refers to mining engineering and can be used for well tools actuation. Mechanical counter for actuation of multiple output devices includes line indexing device that can count multiple actuation signals and conditions actuation of output devices when a given number of actuation signals is set for each output device. Mechanical counter can actuate a particular output device when a different actuation signal number is set. In this case, output devices are actuated sequentially.

EFFECT: improved reliability of well actuator.

23 cl, 11 dwg