US Patent 7699109 Rotating control device apparatus and method
Patent 7699109 was granted and assigned to Smith International on April, 2010 by the United States Patent and Trademark Office.
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Patent abstract
A riser assembly includes a rotating control housing connected between an upper portion and a lower portion of a riser assembly, and a packing element rotatable with respect to the rotating control housing, wherein the packing element is configured to isolate an annulus of the lower portion from the upper portion when a drillstring is engaged through the packing element, and wherein the packing element is configured to be retrieved and replaced through the upper portion.
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Patent Inventor Names
James May0
Jaye Shelton0
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US Patent 07699109 Rotating control device apparatus and method US Patent 7699109 Rotating control device apparatus and method
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Patent Number
07699109
Patent Number
7699109
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US Patent 07699109 Rotating control device apparatus and method
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Is a
Current assignee
Patent jurisdiction
Patent number
07699109
Date of patent
April 20, 2010
Patent application number
11556938
Date Filed
November 6, 2006
Patent primary examiner
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