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Carrier system for positioning sensors adjacent a wire rope

Measuring and testing – Borehole or drilling – Downhole test
Patent

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Casing assembly probes

Measuring and testing – Borehole or drilling – Downhole test
Patent

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Cavity stability prediction method for wellbores

Measuring and testing – Borehole or drilling – Downhole test
Reexamination Certificate

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Cell for testing the sealing quality of an oil-well safety-valve

Measuring and testing – Borehole or drilling – Downhole test
Patent

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Cementing system including real time display

Measuring and testing – Borehole or drilling – Downhole test
Patent

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Characterization of organic contaminants and assessment of remed

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

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Characterization of organic contaminants and assessment of...

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

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Characterizing a reservoir in connection with drilling...

Measuring and testing – Borehole or drilling – Downhole test
Reexamination Certificate

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Chemical sensor for wellbore applications

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

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Christmas tree with internally positioned flowmeter

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

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Christmas tree with internally positioned flowmeter

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

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Clamp-on transducer for well unit

Measuring and testing – Borehole or drilling – Downhole test
Patent

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Closed system for testing the condition of well bore formations

Measuring and testing – Borehole or drilling – Downhole test
Patent

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Coaxial coiled-tubing cable head

Measuring and testing – Borehole or drilling – Downhole test
Patent

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Coiled tubing system used for the evaluation of stimulation cand

Measuring and testing – Borehole or drilling – Downhole test
Patent

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Combination drill motor with measurement-while-drilling electron

Measuring and testing – Borehole or drilling – During drilling
Patent

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Combined electronic clinical thermometer and pacifier

Measuring and testing – Borehole or drilling – Downhole test
Patent

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Compensated gamma ray mudlog

Measuring and testing – Borehole or drilling – Downhole test
Patent

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Compliance-based torque and drag monitoring system and method

Measuring and testing – Borehole or drilling – Downhole test
Patent

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Conductive fluid logging sensor and method

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

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