4. Wells
  5. With heating, refrigerating or heat insulating means
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Electrical device for promoting oil recovery

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

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Electrical heater

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

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Electrical heater

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

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Electrode device for electrically heating underground deposits o

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

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Emission controller for indirect fired downhole steam generators

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

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Enhanced oil recovery process and apparatus

Wells – With heating – refrigerating or heat insulating means
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Enhanced oil well production system

Wells – With heating – refrigerating or heat insulating means – Heater surrounding production tube
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Expandable elements

Wells – With heating – refrigerating or heat insulating means
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0
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