Downhole power generation

E - Fixed Constructions – 21 – B

Patent

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Details

E21B 41/00 (2006.01)

Patent

CA 2728506

Downhole electrical power generation apparatus and methods using stored pressurised gas and/or ambient down-hole pressure. One example apparatus comprises first and second fluid receiving chambers (21a, 21b), a fluid communication path (24a) for allowing flow of fluid from the first chamber (21a) via the fluid communication path (24a) to the second chamber (21b) and a turbine generator (26) disposed so that fluid flowing from the first chamber via the fluid communication path to the second chamber operates the turbine generator (26) to generate electrical power.

La présente invention concerne un appareil de production de courant électrique en fond de puits et des procédés qui mettent en oeuvre du gaz sous pression stocké et/ou une pression ambiante de fond de puits. Un appareil illustratif comprend une première et une seconde chambre de réception de fluide (21a, 21b), une voie de communication fluidique (24a) permettant à un fluide de circuler de la première chambre (21a) à la seconde chambre (21b) par l'intermédiaire de la voie de communication fluidique (24a), ainsi qu'une turbogénératrice (26) montée de manière qu'un fluide circulant de la première chambre à la seconde chambre par l'intermédiaire de la voie de communication fluidique active la turbogénératrice (26) de façon à produire du courant électrique.

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