Patent ID: 9500063
Filing Date: 2016-11-22
CPC Classification: E21B

Claim Text:
1. A hydraulic cycle opening sleeve comprising: a valve collar, the valve collar being a generally tubular member, the valve collar including a first valve cylinder formed in the wall of the valve collar, the first valve cylinder including a first cycling port, a first actuating port, and a first output port; the valve collar including an opening port; a first valve piston positioned to slide within the first valve cylinder in response to fluid pressure introduced into the first valve cylinder through the first cycling port, the first valve piston positioned to fluidly disconnect the first actuating port and the first output port when the first valve piston is in the run in and test positions and positioned to allow fluid connection between the first actuating port and the first output port when the first valve piston is in the open position, the output port fluidly coupled directly or indirectly to the opening port; a first lock rod positioned substantially within the first valve cylinder, the first lock rod coupled to the first valve piston, the first lock rod including at least one locking feature positioned to retain the first valve piston in the open position once the first valve piston is in the open position, the locking feature being a lip formed in the outer surface of the first lock rod, the locking feature adapted to interlock with one or more teeth coupled to the valve collar, the first lock rod including a shear pin hole positioned to accept: a first valve spring positioned within the first valve cylinder positioned to bias the first valve piston into the open position; a generally tubular mandrel coupled to the valve collar forming a continuous fluidly connected bore, the mandrel including a mandrel aperture from the interior of the mandrel to the exterior of the mandrel; a generally tubular port housing coupled to the valve collar, the port housing defining an opening cylinder between an inner wall of the port housing and the exterior cylindrical surface of the mandrel, the opening cylinder fluidly coupled to the opening port of the valve collar, the port housing including a housing aperture from the interior of the port housing to the surrounding wellbore positioned to substantially align with the mandrel aperture of the mandrel; and an opening piston positioned to slide about the mandrel, the piston positioned to slide within the opening cylinder in response to fluid pressure within the opening cylinder when fluid pressure is introduced therein via the opening port of the valve collar, the opening piston including at least one piston aperture, the body of the opening piston positioned to selectively disconnect the mandrel aperture from the housing aperture when in the run-in position, thereby preventing fluid communication between the bore of the mandrel and the surrounding wellbore, and the piston aperture in substantial alignment with the mandrel aperture and housing aperture when in the open position thereby allowing fluid communication between the bore of the mandrel and the surrounding wellbore.