4. Wells
  5. Processes
  6. With indicating, testing, measuring or locating

Robert L. Jessup

Inventor

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Cementing tool with protective sleeve

Wells – Valves – closures or changeable restrictors – Longitudinally movable operator
Patent

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Full-opening annulus pressure operated sampler valve with revers

Wells – Valves – closures or changeable restrictors – Destructible element
Patent

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Method and apparatus for annulus pressure responsive circulation

Wells – Processes – Sampling well fluid
Patent

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Method and apparatus for annulus pressure responsive circulation

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

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Surface packer and method for using the same

Wells – Processes – Placing or shifting well part
Patent

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Profile ID: LFUS-PAI-P-781530

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