Alloy for making high strength deep well casing and tubing havin

Alloys or metallic compositions – Nickel base – Chromium containing

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420451, 420452, 420453, 420454, 420585, C22C 1905, C22C 3818

Patent

active

044002114

ABSTRACT:
An alloy useful for manufacturing high strength deep well casing, tubing and drill pipes for use in oil-well operations is disclosed. The alloy exhibits improved resistance to stress corrosion cracking in the H.sub.2 S-CO.sub.2 -Cl.sup.- environment, which comprises the following alloy composition:

REFERENCES:
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patent: 3876423 (1975-04-01), Firnhaber
patent: 4095976 (1978-06-01), Herchenroeder
patent: 4119456 (1978-10-01), Roach et al.
patent: 4168188 (1979-09-01), Asphahani
patent: 4171217 (1979-10-01), Asphahani et al.
patent: 4174213 (1979-11-01), Fukui et al
patent: 4245698 (1981-01-01), Berkowitz et al.

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