Intermittent high-drag oil well drilling bit

Details Intermittent high-drag oil well drilling bit Intermittent high-drag oil well drilling bit

1982-09-20

1984-05-08

Purser, Ernest R.

Boring or penetrating the earth

Bit or bit element

Magnetized or with magnet

175106, 175338, E21B 402, E21B 1056

Patent

active

044469357

ABSTRACT:
Methods and apparatus are disclosed for the rapid and efficient drilling of oil well and other types of bore holes through tough abrasive underground formations, which methods and apparatus utilize high drag intermittent contact and cooling techniques to provide good rates of penetration with low wear and heat deterioration on the drilling tools.

REFERENCES:
patent: 1391626 (1921-09-01), Gilthorpe
patent: 1419068 (1922-06-01), McFadden
patent: 2121202 (1938-06-01), Kilgore
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patent: 2481009 (1949-09-01), Gill
patent: 2704204 (1955-03-01), Koontz
patent: 2709574 (1955-05-01), Arutunoff
patent: 2898087 (1959-08-01), Clark
patent: 3429390 (1969-02-01), Bennett
patent: 4148368 (1979-04-01), Evans
patent: 4203496 (1980-05-01), Baker et al.

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