Pressure core barrel for the sidewall coring tool

Details Pressure core barrel for the sidewall coring tool Pressure core barrel for the sidewall coring tool

1983-03-31

1984-08-21

Purser, Ernest R.

Boring or penetrating the earth

Processes

Sampling of earth formations

175 78, E21B 4906

Patent

active

044664958

ABSTRACT:
This relates to a pressure coring tool to obtain pressurized samples of the formation through which the wellbore is drilled. It includes a housing which supports a guide means along which the drill bit, core barrel and motor can be moved to extend or retract the cutting bit and core barrel along a selected path which preferably is horizontal. The core barrel is retracted inwardly on a horizontal path and tilted in an upward position such as the outer end of the core barrel is higher than the end near the barrel. Means are provided to pressure seal the cut core within the core barrel.

REFERENCES:
patent: 2373323 (1945-04-01), MacReady
patent: 4142594 (1979-03-01), Thompson et al.
patent: 4230192 (1980-10-01), Pfannkuche
patent: 4256192 (1981-03-01), Aumann
patent: 4272987 (1981-06-01), Aumann et al.
patent: 4317490 (1982-03-01), Milberger et al.
patent: 4354558 (1982-10-01), Jageler et al.

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