Pressure activated down hole systems and methods
First Claim
1. A system for activating a down hole tool in a wellbore, the system comprising:
- a base pipe defining an interior, an exterior, and one or more ports;
an activation chamber defined by an external sleeve disposed about the base pipe, wherein the one or more ports facilitate fluid communication between the interior and the activation chamber;
a piston located on the exterior of the base pipe and including a first piston side exposed to the activation chamber and a second piston side biasing the down hole tool such that any movement of the piston causes the down hole tool to correspondingly move, wherein the piston is moveable within the activation chamber from a first position to a second position for activating the down hole tool; and
a rupture member separating the activation chamber from the interior and preventing fluid communication therebetween until a pressure differential between the activation chamber and the interior reaches a predetermined threshold value, at which point the rupture member ruptures and allows fluid communication between the activation chamber and the interior,wherein when the rupture member is intact, the piston is in the first position, and when the rupture member ruptures, the piston moves to the second position and thereby activates the down hole tool.
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Accused Products
Abstract
Systems and methods for activating a down hole tool in a wellbore. A piston is moveable from a first position to a second position for activating the down hole tool. The piston includes a first side exposed to an activation chamber, and a second side operatively coupled to the down hole tool. A rupture member has a first side exposed to the activation chamber and a second side exposed to the interior of a base pipe. The rupture member is configured to rupture when a pressure differential between the activation chamber and the interior reaches a predetermined threshold value, at which point the rupture member allows fluid communication between the interior and the activation chamber to pressurize the activation chamber and move the piston, thereby activating the down hole tool.
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Citations
16 Claims
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1. A system for activating a down hole tool in a wellbore, the system comprising:
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a base pipe defining an interior, an exterior, and one or more ports; an activation chamber defined by an external sleeve disposed about the base pipe, wherein the one or more ports facilitate fluid communication between the interior and the activation chamber; a piston located on the exterior of the base pipe and including a first piston side exposed to the activation chamber and a second piston side biasing the down hole tool such that any movement of the piston causes the down hole tool to correspondingly move, wherein the piston is moveable within the activation chamber from a first position to a second position for activating the down hole tool; and a rupture member separating the activation chamber from the interior and preventing fluid communication therebetween until a pressure differential between the activation chamber and the interior reaches a predetermined threshold value, at which point the rupture member ruptures and allows fluid communication between the activation chamber and the interior, wherein when the rupture member is intact, the piston is in the first position, and when the rupture member ruptures, the piston moves to the second position and thereby activates the down hole tool. - View Dependent Claims (2, 3, 4, 5)
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6. A method for activating a down hole tool in a wellbore, comprising:
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advancing the down hole tool into the wellbore, the down hole tool being coupled to a base pipe defining an interior, an exterior, and one or more ports, wherein the down hole tool is located on the exterior, and wherein an activation chamber is defined by an external sleeve disposed about the base pipe and the one or more ports facilitate fluid communication between the interior and the activation chamber; increasing pressure in the interior to a pressure above a threshold value; rupturing a rupture member positioned between the interior and the activation chamber in fluid communication with a first side of a movable piston when the pressure in the interior exceeds the threshold value, thereby causing an increase of pressure in the activation chamber; and moving the piston within the activation chamber to activate the down hole tool in response to the increase of pressure in the activation chamber, wherein the piston includes a second piston side that biases the down hole tool such that any movement of the piston causes the down hole tool to correspondingly move. - View Dependent Claims (7, 8, 9, 10)
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11. A wellbore system, comprising:
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a base pipe moveable along the wellbore, the base pipe defining an interior and including a sleeve assembly defining an activation chamber; a moveable piston having a first end exposed to the activation chamber; a down hole tool disposed about the base pipe and biasing a second end of the piston such that any axial movement of the piston causes the down hole tool to correspondingly move; and a rupture member fluidly separating the activation chamber from the interior until a pressure differential between the activation chamber and the interior reaches a predetermined threshold value, at which point the rupture member ruptures and allows fluid communication between the activation chamber and the interior, thereby increasing pressure in the activation chamber and moving the piston within the activation chamber to operate the down hole tool. - View Dependent Claims (12, 13, 14, 15, 16)
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Specification