E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 33/138 (2006.01) E21B 33/127 (2006.01)
Patent
CA 2587939
A wellbore system is provided including a wellbore formed in an earth formation, the wellbore extending into a salt layer of the earth formation. The wellbore system comprises a tubular conduit arranged in the wellbore whereby at least a portion of the tubular conduit is surrounded by the salt layer whereby an annular space is formed between said portion of the tubular conduit and the wellbore wall. The wellbore system further comprises an annular body of a- resilient material arranged in said annular space and extending substantially the length of said portion of the tubular conduit surrounded by the salt layer.
L~invention concerne un système de trou de forage, comprenant un trou de forage formé dans une formation terrestre, le trou de forage se prolongeant dans une couche de sel de la formation terrestre. Le système de trou de forage comprend une conduite tubulaire qui y est disposée de façon à ce que la couche de sel entoure au moins un tronçon de celle-ci pour former ainsi un espace entre ledit tronçon de la conduite tubulaire et la paroi du trou de forage. Le système de trou de forage comprend en outre un corps annulaire constitué d~un matériau souple, disposé dans ledit espace annulaire et se prolongeant sensiblement sur toute la longueur dudit tronçon de la conduite tubulaire entouré de la couche de sel.
Bosma Martin Gerard Rene
Cornelissen Erik Kerst
Shell Canada Limited
Smart & Biggar
LandOfFree
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