Wellbore System Extending Through a Salt Layer
AssigneeShell Oil Company
InventorsMartin Gerard Rene Bosma, Erik Kerst Cornelissen
Life of this patent
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Abstract
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.
Claims17
A wellbore system comprising a wellbore formed in an earth formation, the wellbore having a wellbore wall and extending into a salt layer of the earth formation, the wellbore system comprising a tubular conduit arranged in the wellbore whereby at least a portion of the tubular conduit is surrounded by the salt layer, wherein an annular space is formed between said portion of the tubular conduit and the wellbore wall, the wellbore system further comprising 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.
A method of creating a wellbore having a wellbore wall in an earth formation comprising a salt layer, the method comprising drilling said wellbore so that the wellbore extends into the salt layer, arranging a tubular conduit in the wellbore wherein at least a portion of the tubular conduit is surrounded by the salt layer, and wherein an annular space is formed between said portion of the tubular conduit and the wellbore wall, the method further comprising arranging an annular body of a resilient material in the annular space so that the annular body extends substantially the length of said portion of the tubular conduit surrounded by the salt layer, said resilient material being susceptible to swelling upon contact with a selected fluid, and contacting said resilient material with the selected fluid.
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Dependencies are inferred from the claim text.