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2022
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Invention
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Method of completion of a wellbore. An assembly (2) for use in completion of a wellbore to enable... |
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Invention
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Apparatus and method for placing a casing patch in casing of a wellbore.
A casing patch expansio... |
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2019
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Invention
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Drill string.
A drill string for use in the directional drilling of wellbores is described. A do... |
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Invention
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Drill string. A drill string for use in the directional drilling of wellbores is described. A dow... |
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Invention
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Downhole cleaning apparatus.
An apparatus for cleaning the area around a casing of a wellbore is... |
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2012
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Invention
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Packer apparatus. A perforating tool (2) usable in a well casing to perforate the well casing is ... |
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2010
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Invention
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Downhole expandable roller bearing apparatus. A downhole expandable roller bearing apparatus (2) ... |
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2007
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Invention
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Activating device for a downhole tool. An activating device (2) is intended to be mounted in a dr... |
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Invention
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Expandable downhole tool. An expandable downhole tool (10) such as an under-reamer or a stabilise... |
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2006
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Invention
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Ball-activated mechanism for controlling the operation of a downhole tool. A ball-activated mecha... |
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Invention
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Activating mechanism for hydraulically operable downhole tool. An activating mechanism for a hydr... |
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1993
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Invention
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Valve having releasable latch mechanism. ABSTRACT A VALVE HAVING RELEASABLE LATCH MECHANISM A val... |
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1987
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Invention
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Downhole device for oil/gas wells. ABSTRACT OF THE DISCLOSURE Drilling fluid is diverted from a d... |
