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US 10,119,355 B2Granted
Releasing a well drop
AssigneeHalliburton Energy Services, Inc.
InventorsNicolas Rogozinski, Henry Rogers, Michael Malave
Life of this patent
Estimating the term…
Abstract
A well drop releasing device has a housing attachable to a well tubing. The device has a well drop carrier to carry a well drop. The well drop carrier is linearly movable to move the well drop from an exterior the well tubing into an interior the well tubing and release the well drop in the interior of the well tubing.
Claims20
A well drop releasing device, comprising:
- a housing defining a first cavity and a second cavity, and comprising a coupling, sealingly couplable to a well tubing on a sidewall thereof;
- a first piston in the first cavity sealed to a cavity wall of the first cavity to move linearly in response to a first control fluid pressure in the first cavity;
- a second piston in the second cavity sealed to a cavity wall of the second cavity to move linearly in response to a second control fluid pressure in the second cavity;
- and
- a well drop receptacle operable to receive a well drop and coupled to the first and second pistons, wherein the first and second pistons move, based on the first and second control pressures to the first and second cavities, the well drop receptacle between a holding position, where the well drop receptacle is within the first cavity to hold a well drop in the well drop receptacle, and a releasing position, where the well drop receptacle is in a center bore of the well tubing to release a well drop from the well drop receptacle into the well tubing.
2 more elements
A method, comprising:
- holding a well drop in a receptacle of a well drop releasing device in a housing, apart from an interior of a well tubing, the housing defining first and second cavities with a first piston in the first cavity and a second piston in the second cavity;
- and
- in response to first and second control fluid pressures on the first and second pistons, linearly translating the receptacle between a holding position, where the receptacle is within the first cavity to hold the well drop in the receptacle, and a releasing position, where the receptacle is in the interior of the well tubing to release the well drop into the interior of the well tubing.
A device, comprising:
- a housing attachable to a well tubing and defining a first cavity and a second cavity with a first piston in the first cavity and a second piston in the second cavity;
- and
- a well drop carrier to carry a well drop, the well drop carrier being configured to linearly move, based on first and second control pressures applied to the first and second cavities, from the first cavity into a center bore of the well tubing to release the well drop into the center bore of the well tubing.
Dependencies are inferred from the claim text.