4. Wells
  5. Processes
  6. Sampling well fluid

Douglas W. Grant

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Apparatus and method for controlling the pressure of fluid...

Wells – Processes – Placing fluid into the formation
Reexamination Certificate

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Apparatus and method for controlling the pressure of fluid...

Wells – Processes – Sampling well fluid
Reexamination Certificate

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Apparatus and method for sensing downhole parameters

Wells – Processes – With indicating – testing – measuring or locating
Reexamination Certificate

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Non-conductive and non-magnetic flowline for electromagnetic...

Wells – With electrical means – Magnetic
Reexamination Certificate

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Profile ID: LFUS-PAI-P-3007776

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