Composite drill collar

Details Composite drill collar Composite drill collar

1986-05-29

1987-11-24

Recla, Henry J.

Wells

Guide for device or conduit

On sucker or pump rod

175325, F16L 5700

Patent

active

047082038

ABSTRACT:
A drill collar is formed from a composite material to protect equipment during drilling operations as in oil and gas exploration.

REFERENCES:
patent: 2153787 (1939-04-01), Anderson
patent: 3197556 (1965-07-01), Simon
patent: 3942824 (1976-03-01), Sable
patent: 4343518 (1982-08-01), Povrchot
patent: 4544701 (1985-10-01), Walker
patent: 4653598 (1987-03-01), Schuh et al.

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