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US 2024/0191585 A1Published application
Latch assembly
AssigneeSchlumberger Technology Corporation
InventorsChristopher Shen, Christopher Cassidy, Julia Huynh, Valeria Erives, Harshith Dmello, Ronnie Bruce
Life of this patent
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Abstract
A lock latch assembly for a multi-stage completion and method of operating the lock latch assembly are provided. The latch assembly functions as a snap latch prior to activation and as a shear latch after activation.
Claims20
A lock latch assembly comprising:
- a body;
- a mandrel disposed circumferentially within the body;
- a top sub coupled to an upper end of the mandrel;
- a sliding collar disposed about a portion of the body and a portion of the top sub;
- a locking collet disposed circumferentially within a portion of the body;
- a sliding cage disposed circumferentially within the locking collet;
- one or more shear screws extending radially through the body;
- and
- a preventer collet disposed about a portion of the body and comprising a tab portion disposed axially between the top sub and the body when the lock latch assembly is in a run-in-hole position.
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A latch assembly comprising:
- a main housing;
- a mandrel disposed at least partially circumferentially within the main housing;
- a top sub coupled to an upper end of the mandrel;
- a sliding collar disposed circumferentially about the top sub and the main housing;
- a slotted sub disposed circumferentially about a lower portion of the mandrel;
- and
- a locking collet disposed circumferentially about the slotted sub, an outer surface of the locking collet comprising teeth configured to engage corresponding grooves in a packer.
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Dependencies are inferred from the claim text.