SINGLE SIZE ACTUATOR FOR MULTIPLE SLIDING SLEEVES
First Claim
Patent Images
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.
1 Assignment
0 Petitions
Accused Products
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.
17 Citations
27 Claims
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1. A downhole device comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for activating a downhole device comprising:
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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. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A port restrictor in a downhole device comprising:
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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. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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21. A method for activating a downhole device comprising:
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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. - View Dependent Claims (22, 23, 24, 25, 26, 27)
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Specification