E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 43/30 (2006.01) E21B 23/00 (2006.01)
Patent
CA 2285476
A method and well system are disclosed which allow drilling, service, maintenance and/or monitoring equipment to be used downhole and to be moved into, through and/or from the well system whilst production of oil and/or gas can continue during at least part of the period during which the equipment is moved or used in the well system. The well system thereto comprises a plurality of entrance points at the earth surface and a system of underground wellbores which provide a subsurface connection between said entrance points so that production of oil and/or gas can continue via at least one of said entrance points whilst equipment is moved and/or operated via another entrance point.
L'invention concerne un procédé ainsi qu'un système de puits, lesquels permettent que l'on fore, entretienne et/ou surveille le matériel à utiliser en fond de puits ou à déplacer dans ce fond de puits, via et/ou à partir du système de puits, tout en continuant la production de pétrole et/ou de gaz, au moins en partie pendant la période au cours de laquelle on déplace ou on utilise ce matériel dans le système de puits. Ce système comprend donc une pluralité de points d'entrée, au niveau de la surface de la terre, ainsi qu'un ensemble trous de forage souterrains assurant une connexion sous la surface entre lesdits points d'entrée, de façon que la production de pétrole et/ou de gaz puisse continuer via au moins l'un de ces points d'entrée tandis que le matériel est déplacé et/ou commandé via un autre point d'entrée.
Den Boer Johannis Josephus
Sheehy Hugh Edward
Shell Canada Limited
Smart & Biggar
LandOfFree
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