Galvanic corrosion protection system

Details Galvanic corrosion protection system Galvanic corrosion protection system

1997-05-12

1999-05-25

Nicholson, Eric K.

Pipe joints or couplings

With casing, lining or protector

Lined

285329, 285333, 285422, 205131, F16L 55128

Patent

active

059064005

ABSTRACT:
A pipe couple is shown for connecting two pipelines of different materials together in a well environment which prevents deterioration of the pipe due to galvanic action. The couple achieves its purpose by coating the interior of the more noble pipe section with a wear-resistant, non-conductive coating which prevents electrolytic action between the two dissimilar metals. It also achieves high pullout resistance while maintaining minimum outer dimensions to facilitate use of the couple in all types of wells including oil, gas and waste injection wells.

REFERENCES:
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patent: 3620555 (1971-11-01), Hinds
patent: 4176033 (1979-11-01), Council
patent: 4345785 (1982-08-01), Bradford
patent: 4366971 (1983-01-01), Lula
patent: 4524996 (1985-06-01), Hunt
patent: 4600219 (1986-07-01), Yoshida
patent: 5069485 (1991-12-01), Allen et al.
patent: 5320388 (1994-06-01), Lacy et al.

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