US Patent 8720565 Tubular severing system and method of using same
Patent 8720565 was granted and assigned to National Oilwell Varco on May, 2014 by the United States Patent and Trademark Office.
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Patent abstract
A method for severing a tubular of a wellbore is provided. The method involves positioning a blowout preventer about a tubular, the blowout preventer having a plurality of rams slidably positionable therein and a plurality of blades carried by the rams for engaging the tubular. The method further involves piercing the tubular with a piercing point of at least one of the blades such that a portion of the tubular is dislodged therefrom, and raking through the tubular with a cutting surface of at least one of the blades.
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Patent Inventor Names
Christopher Dale Johnson0
Eric Trevor Ensley0
Frank Benjamin Springett0
Shern Eugene Peters0
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US Patent 08720565 Tubular severing system and method of using same US Patent 8720565 Tubular severing system and method of using same
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Patent Number
087205650
Patent Number
87205650
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Current Assignee
Patent Jurisdiction
Patent Number
087205650
Date of Patent
May 13, 2014
0Patent Application Number
131182890
Date Filed
May 27, 2011
0Official Website
Patent Primary Examiner
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US Patent 08720565 Tubular severing system and method of using same
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
08720565
Date of patent
May 13, 2014
Patent application number
13118289
Date Filed
May 27, 2011
Patent primary examiner
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