Measuring and testing – Borehole or drilling – Downhole test
Patent
1988-10-31
1990-03-27
Levy, Stewart J.
Measuring and testing
Borehole or drilling
Downhole test
E21B 4900
Patent
active
049110012
ABSTRACT:
Drilling muds and particulate matter are removed from the surface of core produced from a wellbore while maintaining naturally occurring fluids in the core substantially as existing at the time of removal from the wellbore.
REFERENCES:
patent: 2617719 (1952-11-01), Stewart
patent: 3025398 (1962-03-01), Dameron
patent: 3373440 (1968-03-01), Jenkins et al.
Swayne, R. E., "Continuous Wireline Core Drilling . . . ", Drill Bits, Sprint 1988.
Amoco Corporation
Levy Stewart J.
O'Shea Kevin D.
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