4. Wells
  5. Processes
  6. Placing or shifting well part

David J. Speller

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Method of washing, injecting swabbing or flow testing subterrane

Wells – Processes – With indicating – testing – measuring or locating
Patent

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Unloading injection control valve

Fluid handling – Line condition change responsive valves – With separate connected fluid reactor surface
Patent

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Unloading injection control valve

Wells – Valves – closures or changeable restrictors – Fluid operated
Patent

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Valving apparatus for downhole tools

Wells – Processes – Operating valve – closure – or changeable restrictor in a well
Patent

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Wellbore tractor and method of moving an item through a wellbore

Wells – Processes – Placing or shifting well part
Patent

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Profile ID: LFUS-PAI-P-1240410

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