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2018
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Invention
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Well completion with single wire guidance system. A system for guiding a well comprises a current... |
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2016
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Invention
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Reducing or preventing dissipation of electrical current and associated magnetic signal in a well... |
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2015
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Invention
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Temperature measurement using a magnetic ranging tool.
A method of measuring the temperature in ... |
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Invention
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Active magnetic azimuthal toolface for vertical borehole kickoff in magnetically perturbed enviro... |
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Invention
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Well completion with single wire guidance system. A well completion system includes a current sou... |
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Invention
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Well completion with single wire guidance system. A system includes a current source and a ground... |
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2014
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G/S
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Downhole magnetic ranging tools. Leasing, servicing and repair of magnetic ranging tools and trai... |
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2009
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Invention
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Downhole adjustable bent-angle mechanism for use with a motor for directional drilling. A housing... |
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2007
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Invention
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Feedback-controlled piezoelectric force measuring apparatus. A feedback-controlled force measurin... |
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1996
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Invention
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Downhole drill bit drive motor assembly with an integral bilateral signal and power conduction pa... |
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Invention
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Casing joint detector. A borehole instrument that detects the joints of successive axial lengths ... |
