Apparatus and method for geological drilling and coring

Details Apparatus and method for geological drilling and coring Apparatus and method for geological drilling and coring

1975-03-06

1976-07-13

Abbott, Frank L.

Boring or penetrating the earth

Processes

Sampling of earth formations

175 72, 175206, 175212, 175213, 175217, E21B 4900

Patent

active

039688453

ABSTRACT:
Apparatus and method for complete reverse air vacuum drilling by entrainment of chips and dust in a high velocity air stream created by applying a vacuum to the drill stem or the annulus of a drilled hole, removing the drilled particles by entrainment in the flow of air created by the vacuum and collection of the drilled particles for visual or other analysis.

REFERENCES:
patent: 682939 (1901-09-01), Ivens
patent: 2167393 (1939-07-01), Muney
patent: 2329330 (1943-09-01), Brailey
patent: 2839273 (1958-06-01), Holman et al.
patent: 2849213 (1958-08-01), Failing
patent: 3291229 (1966-12-01), Houston
patent: 3655001 (1972-04-01), Hoffman

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