Single size actuator for multiple sliding sleeves

Abstract

A multiplier sleeve has a releasable seat coupled to a dog within the slidable sleeve allows a single sized ball, dart, or plug to actuate several sliding sleeves. Upon actuation by properly sized ball the ball, slidable sleeve, seat, and dog move downward where the dog is no longer supported allowing the seat to move within the slidable sleeve to a point where the seat is no longer supported thereby releasing the ball. With the slidable sleeve moved downward the port or ports in the sliding sleeve is exposed. A staged port and piston assembly inserted into the ports maintain pressure within the tubular assembly to allow the ball to move through and actuate the targeted sliding sleeves.

What is claimed is: 
     
         1 . A downhole device comprising:
 a seat in a first position has a first diameter;   a dog coupled to the seat;   wherein in a first position the dog prevents the seat from longitudinal movement within an inner sleeve;   further wherein the dog in a second position allows the seat to move longitudinally within the inner sleeve; and   the seat in a second position has a second diameter.   
     
     
         2 . The downhole device of  claim 1  wherein, the inner sleeve has a first position within a housing wherein the dog is supported by the housing in the dog's first position. 
     
     
         3 . The downhole device of  claim 1  wherein, the inner sleeve has a second position within a housing wherein the dog is supported by a relief in the housing in the dog's second position. 
     
     
         4 . The downhole device of  claim 1  wherein, the seat is coupled to an anti-reverse tubular,
 wherein the coupling between the seat and the anti-reverse tubular is ratcheted. 
 
     
     
         5 . The downhole device of  claim 4  wherein, the anti-reverse tubular has an anti-rotation ring and the inner sleeve has a stop tab. 
     
     
         6 . The downhole device of  claim 5  wherein, upon rotation the coupling between the seat and the anti-reverse tubular is tightened. 
     
     
         7 . A method for activating a downhole device comprising:
 moving a sleeve from a first position to a second position;   disengaging a dog from a seat within the inner sleeve;   moving the seat from a first position to a second position within the inner sleeve; and   radially expanding the seat from a first diameter to a second diameter.   
     
     
         8 . The method of  claim 7  wherein, the inner sleeve has a first position within a housing wherein the dog is supported by the housing in the dog's first position. 
     
     
         9 . The method of  claim 7  wherein, the inner sleeve has a second position within a housing wherein the dog is supported by a relief in the housing in the dog's second position. 
     
     
         10 . The method of  claim 7  further comprising:
 shearing a lock to allow the sleeve to move from the first position to the second position. 
 
     
     
         11 . The method of  claim 7  wherein, the seat is coupled to an anti-reverse tubular,
 wherein the coupling between the seat and the anti-reverse tubular is ratcheted. 
 
     
     
         12 . The method of  claim 11  wherein, the anti-reverse tubular has an anti-rotation ring and the inner sleeve has a stop tab. 
     
     
         13 . The downhole device of  claim 12  further comprising: tightening the coupling between the seat and the anti-reverse tubular upon rotation. 
     
     
         14 . A port restrictor in a downhole device comprising:
 a port in a housing;   a disk fixed within the port,
 wherein the disc has a nozzle extending through it; and 
   a piston fixed within the port radially outward from a center of the housing of the disc.   
     
     
         15 . The port restrictor of  claim 14  wherein, the disc is threaded to the port. 
     
     
         16 . The port restrictor of  claim 14  wherein, the disc is pinned to the port. 
     
     
         17 . The port restrictor  claim 14  wherein, the piston is threaded to the port. 
     
     
         18 . The port restrictor  claim 14  wherein, the piston is pinned to the disc. 
     
     
         19 . The port restrictor of  claim 18  wherein, the pins are shear pins. 
     
     
         20 . The port restrictor  claim 14  wherein, the piston has a slot across a surface adjacent to the disc. 
     
     
         21 . A method for activating a downhole device comprising:
 moving an inner sleeve from a first position to a second position,
 wherein a port in a housing is exposed; 
   flowing fluid through a nozzle in a disc,
 wherein the disc is fixed in the port; 
   removing a piston radially outward of the disc;   disengaging a dog from a seat within the inner sleeve;   moving the seat from a first position to a second position within the inner sleeve; and   radially expanding the seat from a first diameter to a second diameter.   
     
     
         22 . The method of  claim 21  wherein, the inner sleeve has a first position within a housing wherein the dog is supported by the housing in the dog's first position. 
     
     
         23 . The method of  claim 21  wherein, the inner sleeve has a second position within a housing wherein the dog is supported by a relief in the housing in the dog's second position. 
     
     
         24 . The method of  claim 21  further comprising:
 shearing a lock to allow the sleeve to move from the first position to the second position. 
 
     
     
         25 . The method of  claim 21  wherein, the seat is coupled to an anti-reverse tubular,
 wherein the coupling between the seat and the anti-reverse tubular is ratcheted. 
 
     
     
         26 . The method of  claim 25  wherein, the anti-reverse tubular has an anti-rotation ring and the inner sleeve has a stop tab. 
     
     
         27 . The downhole device of  claim 26  further comprising: tightening the coupling between the seat and the anti-reverse tubular upon rotation.