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US 9,752,390 B2Granted
Casing window assembly
AssigneeHalliburton Energy Services, Inc.
InventorDavid Joe Steele
Life of this patent
Estimating the term…
Abstract
A casing window assembly for completion of a lateral wellbore. The casing window assembly includes a tubular casing sleeve with a casing window and an inner sleeve releasably secured within the casing sleeve at a pre-released position adjacent the casing window.
Claims9
A method for installing a casing window assembly, comprising:
- lowering the casing window assembly into a main wellbore to a predetermined depth, the casing window assembly including a tubular casing sleeve with a position for a casing window and an inner sleeve releasably secured within the casing sleeve at a pre-released position adjacent the position for the casing window;
- releasing the inner sleeve from the casing sleeve;
- releasably securing the inner sleeve within the casing sleeve at a post-released position below the position for the casing window.
Dependencies are inferred from the claim text.