Scraping Tool for Well Plug and Abandonment Operations and Installation of Completion Products
AssigneeHalliburton Energy Services, Inc.
InventorGunnar Lehrling
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AssigneeHalliburton Energy Services, Inc.
InventorGunnar Lehrling
Estimating the term…
A scraping tool for well plug and abandonment operations is provided by affixing a scraping tool to an outer diameter of a work string; advancing the work string to a first predetermined depth in a wellbore of a well; retracting the scraping tool to a second predetermined depth in the wellbore further uphole than the first predetermined depth; setting a cement retainer and injecting a sealing medium through the work string into the wellbore at the first predetermined depth to plug the well. In some cases, the scraping tool is detached with a cement retainer from the work string, while down bore; and the work string (without the scraping tool affixed thereto) is removed from the wellbore.
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Dependencies are inferred from the claim text.