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2016
|
Invention
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Expandable device for forming a cement plug. A cementing device for establishing a false bottom i... |
|
|
Invention
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Expandable device for forming a cement plug. There is disclosed a cementing device (10) for estab... |
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2015
|
Invention
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A method and a centralizer system for centralizing a casing in a well bore.
A centralizer system... |
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|
Invention
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A method and a centralizer system for centralizing a casing in a well bore. A centralizer system ... |
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2010
|
Invention
|
Landing sub for a wiper. Disclosed is a landing sub for a wiper. The wiper is adapted for interna... |
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2005
|
Invention
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Apparatus for wiping the interior of pipes. An apparatus is provided for cleaning a drill string ... |
