Boring or penetrating the earth – With tool shaft detail – Shaft carried guide or protector
Patent
1992-03-19
1993-10-12
Melius, Terry Lee
Boring or penetrating the earth
With tool shaft detail
Shaft carried guide or protector
E21B 1710
Patent
active
052517101
ABSTRACT:
A stabilized drill string component includes an elongated tubular body. This body comprises a tubular stabilization section and at least one further tubular section. These tubular sections are integrally joined together in axially aligned relation. The stabilization section is much shorter than the further tubular section or sections but has a somewhat greater diameter than the latter such that the stabilization section can assist in stabilizing the drill string component during drilling by way of contact with the wall of the well bore. The wearing surfaces of the stabilization section are of substantially harder material than that of the further tubular section or sections thereby to provide substantial resistance to wear.
REFERENCES:
patent: 3250578 (1966-05-01), Lubbes
patent: 4708203 (1987-11-01), Walker
Laporte Irwin J.
Watkins Amos J.
Bloom Leonard
JKS Boyles International Inc.
Melius Terry Lee
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