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US Patent 11753886 Expandable metal packing stacks

Patent 11753886 was granted and assigned to Halliburton on September, 2023 by the United States Patent and Trademark Office.

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Is a
Patent
Patent

Patent attributes

Patent Applicant
Halliburton
Halliburton
Current Assignee
Halliburton
Halliburton
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent Number
11753886
Patent Inventor Names
James Dan Vick, Jr.
Stephen Michael Greci
Michael Linley Fripp
Date of Patent
September 12, 2023
Patent Application Number
17051762
Date Filed
November 14, 2019
Patent Citations
‌
US Patent 11421505 Wellbore packer with expandable metal elements
‌
US Patent 11299955 Swellable metal for swell packer
‌
US Patent 11560768 Washout prevention element for expandable metal sealing elements
Patent Primary Examiner
‌
Yong-Suk (Philip) Ro
CPC Code
‌
E21B 33/127
‌
E21B 23/06
‌
E21B 23/02

Seal elements for establishing fluid seals in a wellbore may be constructed of expandable metal materials. For example, an elongated gland of expandable metal may replace some or all the components in a packing stack of a locking mandrel. The gland may be recessed within the locking mandrel, or narrower than a seal bore of a landing nipple, such that the gland is protected from damage as the locking mandrel passes through landing nipples to reach a target landing nipple. The expandable metal may be induced to chemically react with a brine or other water-based fluid to form metal hydroxides and may thus create a seal with the target landing nipple. Once an intended purpose of the locking mandrel has been achieved, a pressure reversal may be employed to break the seal and/or a mild acid may be introduced to accelerate dissolving of the expandable metal seal.

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