US Patent 7404446 Well tool protection system and method
Patent 7404446 was granted and assigned to Schlumberger on July, 2008 by the United States Patent and Trademark Office.
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Patent Inventor Names
Dennis M. Read, Jr.0
Michael Hui Du0
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Patent abstract
The system including a well tool having a housing forming a protection fluid chamber in fluid communication with a discharge port, a protection fluid disposed within the protection fluid chamber, and a moveable mechanism in functional connection with the protection fluid chamber in a manner to expel a portion of the protection fluid when the moveable mechanism moves.
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US Patent 07404446 Well tool protection system and method US Patent 7404446 Well tool protection system and method
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Patent Number
074044460
Patent Number
74044460
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Current Assignee
Patent Jurisdiction
Patent Number
074044460
Date of Patent
July 29, 2008
0Patent Application Number
116169230
Date Filed
December 28, 2006
0Official Website
Patent Primary Examiner
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US Patent 07404446 Well tool protection system and method
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07404446
Date of patent
July 29, 2008
Patent application number
11616923
Date Filed
December 28, 2006
Patent primary examiner
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