4. Boring or penetrating the earth
  5. Processes
  6. Boring curved or redirected bores

Robert N. Worrall

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Apparatus for vibrating a pipe string in a borehole

Boring or penetrating the earth – Processes – Boring curved or redirected bores
Patent

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Assembly for directional drilling of boreholes

Boring or penetrating the earth – Means traveling with tool to constrain tool to bore along... – Normally curved guide or shaft
Patent

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Detecting outflow or inflow of fluid in a wellbore

Wells – Submerged well – Testing
Patent

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Forming an impermeable coating on a borehole wall

Wells – Processes – Cementing – plugging or consolidating
Patent

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Hydrogen-oxygen acoustic logging device

Acoustics – Geophysical or subsurface exploration – Well logging
Patent

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Profile ID: LFUS-PAI-P-83273

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