Perforating gun brake and set device and method
AssigneeGeodynamics, Inc.
InventorTerrell Saltarelli
Life of this patent
Estimating the term…
Abstract
A braking and setting device is configured to slow down a movement of a tool in a well and to fix the tool relative to the well. The braking and setting device includes two or more arms configured to extend from the tool, toward the well, to brake the movement of the tool along a longitudinal axis X; a movable piston configured to be hosted fully within the tool and to move only when a well fluid acts on a base portion of the movable piston, while a tip portion of the movable piston pushes away the two or more arms; and an actuation mechanism configured to establish a fluid communication between the well fluid and the base portion of the movable piston. The movable piston moves exclusively due to a force exerted by the well fluid on the movable piston.
Claims20
A braking and setting device configured to slow down a movement of a tool in a well and to fix the tool relative to the well, the braking and setting device comprising:
- two or more arms configured to extend from the tool, toward the well, to brake the movement of the tool along a longitudinal axis X;
- a movable piston configured to be hosted fully within the tool and to move only when a well fluid acts on a base portion of the movable piston, while a tip portion of the movable piston pushes away the two or more arms;
- and
- an actuation mechanism configured to move from a first position, in which it prevents fluid communication between the well fluid and the base portion of the movable piston, to a second position, in which it allows fluid communication between the well fluid and the base portion of the movable piston,
- wherein the movable piston moves exclusively due to a force exerted by the well fluid on the movable piston.
A perforating gun configured to slow down in a well and fix to a casing of the well, the perforating gun comprising:
- a body extending along a longitudinal axis X;
- one or more shaped charges configured to make a perforation in the well;
- a detonator cord connected to the one more shaped charges;
- and
- a braking and setting device partially located within the body and configured to slow down a movement of the body in the well and to fix the body relative to the well,
- wherein the braking and setting device brakes and sets the body exclusively due to a force exerted by the well fluid.
A method of deploying a perforating gun into a well with a braking and setting device, the method comprising:
- releasing the perforating gun into the well;
- sending a command to the perforating gun to actuate the braking and setting device;
- actuating an actuation mechanism, based on the received command, to open a fluid communication between a well fluid from the well and a movable piston of the braking and setting device;
- moving the movable piston exclusively due to a force exerted by the well fluid, where the movable piston pushes away two or more arms against a casing of the well to brake the perforating gun;
- and
- setting the perforating gun to be fixed relative to the casing with the two or more arms.
Dependencies are inferred from the claim text.