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Well-logging process and device in a non-flowing production well

Measuring and testing – Borehole or drilling – Downhole test
Patent

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Wellbore monitor

Measuring and testing – Borehole or drilling – Fluid flow measuring or fluid analysis
Reexamination Certificate

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Wellbore pressure testing method and apparatus

Measuring and testing – Borehole or drilling – Downhole test
Patent

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Wellbore production tool and method

Measuring and testing – Borehole or drilling – Fluid flow measuring or fluid analysis
Reexamination Certificate

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Wide liquid temperature range fluids for pressure balancing...

Measuring and testing – Borehole or drilling – Pressure measurement
Reexamination Certificate

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Wireline apparatus for measuring steaming potentials and...

Measuring and testing – Borehole or drilling – Formation logging
Reexamination Certificate

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Wireline apparatus for use in earth boreholes

Measuring and testing – Borehole or drilling – Downhole test
Patent

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Wireline formation tester supercharge correction method

Measuring and testing – Borehole or drilling – Fluid flow measuring or fluid analysis
Patent

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Wireline formation testing for low permeability formations utili

Measuring and testing – Borehole or drilling – Formation logging
Patent

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