| 摘要 |
FIELD: pipes.SUBSTANCE: group of inventions relates to tubular actuating systems and methods of actuating multiple tubular actuators. Tubular actuating system and method for actuation thereof include a plurality of series of actuators disposed within a tubular article, wherein at least one of series has a plurality of actuators, each of plurality of actuators in at least one of he series is alterable from a first position allowing passage of plugs below a selected size to a second position allowing actuation by plugs of selected diameters, wherein plurality of actuators in at least one of series are distributed within tubular article such that more upstream of any two of the plurality of actuators can come into contact for actuation with a larger one of plugs than more downstream of two of plurality of actuators when in second position, and plurality of series is distributed such that for any two of series more upstream of two series requires a larger plug to alter actuators therewithin.EFFECT: technical result is mitigation of negative impact on flow in well shaft.13 cl, 4 dwg |
