4. Measuring and testing
  5. Borehole or drilling
  6. Downhole test

Larry J. Leising

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Forming casing window off whipstock set in cement plug

Wells – Wells with lateral conduits
Patent

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Multi-cycle releasable connection

Pipe joints or couplings – Frangible element
Patent

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Shock limiting apparatus

Boring or penetrating the earth – With signaling – indicating – testing or measuring
Patent

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Suction valve for high pressure slurry pump

Fluid handling – Line condition change responsive valves – Direct response valves
Patent

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Weight-on-bit and torque measuring apparatus

Measuring and testing – Borehole or drilling – Downhole test
Patent

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Profile ID: LFUS-PAI-P-590523

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