Drill collar tester

Details Drill collar tester Drill collar tester

1987-04-14

1988-11-22

Chapman, John

Measuring and testing

Vibration

By mechanical waves

73637, G01N 2900

Patent

active

047856688

ABSTRACT:
The instant invention relates to an apparatus and method for inspecting the structural integrity of drill collars used in the drilling of oil and gas wells.

REFERENCES:
patent: 3977236 (1976-08-01), Raatz, Jr. et al.
patent: 4597294 (1986-07-01), Brill, III et al.

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