Thermal expansion actuation system for sleeve shifting

A remoted operated sleeve assembly comprising:

• a tubular housing having a bore therethrough and ports therein for fluidly connecting the bore to outside the housing and a radially outwardly extending sleeve recess formed intermediate the housing;
• a sleeve axially moveably supported in the housing, for shifting between blocking the ports and opening the ports, and forming an annular space therebetween;
• a radially outwardly extending bidirectional sleeve piston formed on the sleeve and extending into the annular space into the sleeve recess;
• a first chamber formed in the annular space on one side of the sleeve piston and a second chamber formed in the annular space on an opposing side of the sleeve piston;
• a first circumferential arrangement of a plurality of explosive chambers, in fluid communication with the first chamber, and a second circumferential arrangement of a plurality of explosive chambers, in fluid communication with the second chamber, each of the plurality of explosive chambers having a charge of propellant therein;
• and
• a sensor in the sleeve assembly for receiving a coded signal for actuating ignition of one or more of the charges of propellant in the first or second circumferential arrangement of the plurality of explosive chambers,
• wherein one of the first or second chambers has a volume smaller than a larger volume in the other, the smaller volume chamber forming a combustion chamber and the larger volume chamber forming a compression chamber and
• wherein the signal is coded to actuate ignition of one or more of the charges of propellant in the circumferential arrangement of explosive chambers in fluid communication with the combustion chamber, ignition creating at least expanding gas therein for directly acting on the sleeve piston for shifting the piston and the sleeve attached thereto in the direction of the compression chamber;
• and
• wherein shifting the sleeve and sleeve piston in the direction of the compression chamber causes the combustion chamber to increase in volume to become a current compression chamber and the compression chamber to decrease in volume to become a current combustion chamber for a subsequent ignition of one or more of the charges of propellant on the opposing side for shifting the sleeve in the opposing direction.