US Patent 7424915 Vacuum pumping of conductor-in-conduit heaters
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Patent abstract
Certain embodiments provide a method that includes placing a heater element in an opening in a subsurface formation. The heater element is in a conduit. A pressure is reduced inside the conduit to a pressure below the vapor pressure of water at the temperature in the conduit.
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US Patent 07424915 Vacuum pumping of conductor-in-conduit heaters US Patent 7424915 Vacuum pumping of conductor-in-conduit heaters
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Patent Number
0742491500
Patent Number
742491500
Edits on 29 Apr, 2023
Golden AI
Infobox
Is a
Patent Jurisdiction
Patent Number
074249150
Date of Patent
September 16, 2008
0Patent Application Number
111128560
Date Filed
April 22, 2005
0Official Website
Patent Primary Examiner
Edits on 28 Sep, 2022
Golden AI
Infobox
Is a
Patent Jurisdiction
Patent Number
074249150
Date of Patent
September 16, 2008
0Patent Application Number
111128560
Date Filed
April 22, 2005
0Official Website
Patent Primary Examiner
Edits on 14 Jun, 2022
Golden AI
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US Patent 07424915 Vacuum pumping of conductor-in-conduit heaters
Infobox
Is a
Patent jurisdiction
Patent number
07424915
Date of patent
September 16, 2008
Patent application number
11112856
Date Filed
April 22, 2005
Patent primary examiner
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