4. Wells
  5. With heating, refrigerating or heat insulating means
  6. Electrical heater in well
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Method and apparatus for de-icing oilwells

Wells – With heating – refrigerating or heat insulating means – Electrical heater in well
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Method and apparatus for heating a wellbore

Wells – With heating – refrigerating or heat insulating means – Electrical heater in well
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Method and apparatus for subterranean thermal conditioning

Wells – With heating – refrigerating or heat insulating means – Electrical heater in well
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Method and apparatus for treating subsurface boreholes

Wells – With heating – refrigerating or heat insulating means – Electrical heater in well
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Method and system for introducing electric current into a well

Wells – With heating – refrigerating or heat insulating means – Electrical heater in well
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Mineral well heating systems

Wells – With heating – refrigerating or heat insulating means – Electrical heater in well
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0
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