4. Wells
  5. Pistons, fluid driven into well

T. Austin Freeman

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Cement head and plug

Wells – Processes – Cementing – plugging or consolidating
Patent

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Indicating ball catcher

Wells – Sonic device – With specific downhole feature
Patent

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Non-rotating plug

Wells – Pistons – fluid driven into well
Patent

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Non-rotating plug set

Wells – Pistons – fluid driven into well
Patent

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Packer for use in, and method of, cementing a tubing string in a

Wells – Processes – Cementing – plugging or consolidating
Patent

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