Heating systems for heating subsurface formations

Details Heating systems for heating subsurface formations Heating systems for heating subsurface formations

E - Fixed Constructions

21

B

E21B 36/00 (2006.01) E21B 36/02 (2006.01) E21B 36/04 (2006.01) E21B 43/24 (2006.01)

Patent

CA 2684422

Methods and systems for heating a subsurface formation are described herein. A heating system for a subsurface formation includes a sealed conduit positioned in an opening in the formation and a heat source. The sealed conduit includes a heat transfer fluid. The heat source provides heat to a portion of the sealed conduit to change phase of the heat transfer fluid from a liquid to a vapor. The vapor in the sealed conduit rises in the sealed conduit, condenses to transfer heat to the formation and returns to the conduit portion as a liquid.

L'invention concerne des procédés et des systèmes de chauffage d'une formation de sub-surface. Un système de chauffage d'une formation de sub-surface comprend un conduit scellé placé dans une ouverture dans la formation et aux sources de chaleur. Le conduit scellé comprend un fluide de transfert de chaleur. La source de chaleur fournit de la chaleur à une partie du conduit scellé pour changer la phase du fluide de transfert de chaleur du liquide à la vapeur. La vapeur dans le conduit scellé s'élève dans le conduit scellé, se condense pour transférer la chaleur à la formation et revient dans la partie de conduit sous forme liquide.

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