4. Wells
  5. Pistons, fluid driven into well
  6. With stop

Rudy B. Callihan

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Apparatus for well cementing through a tubular member

Wells – Pistons – fluid driven into well – Surrounding conduit valve or closure opened by piston
Patent

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Centering device for well conduit

Wells – Guide for device or conduit – On sucker or pump rod
Patent

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Combination hydraulically set hanger assembly with expansion joi

Wells – Expansible anchor or casing – Liner hanger
Patent

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Gravel packing apparatus and method

Wells – Processes – Graveling or filter forming
Patent

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Method and apparatus for installing a cementing float shoe on th

Wells – Processes – Placing or shifting well part
Patent

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Profile ID: LFUS-PAI-P-197831

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