Tubulars for curved bore holes

Details Tubulars for curved bore holes Tubulars for curved bore holes

1981-05-21

1984-11-27

Novosad, Stephen J.

Boring or penetrating the earth

Processes

Boring curved or redirected bores

175 74, E21B 704

Patent

active

044846410

ABSTRACT:
The invention provides a high strength, twist resistant tubular goods system for traversing highly deviated sections of well bores capable of conducting fluids under high pressures. The system comprises short pipe joints interconnected by unions capable of uni-directional mis-alignment. Buoyancy material is incorporated to reduce drag and minimize gouging the bore hole walls.

REFERENCES:
patent: 1764488 (1930-06-01), Zublin
patent: 1781049 (1930-11-01), Brinton
patent: 1801788 (1931-04-01), Zublin
patent: 1886820 (1932-11-01), Lee
patent: 2631820 (1953-03-01), Zublin
patent: 3265091 (1966-08-01), De Jarnett
patent: 3663043 (1972-05-01), Walton
patent: 4143722 (1979-03-01), Driver
patent: 4240652 (1980-12-01), Wong et al.

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