Corrosion testing

Details Corrosion testing Corrosion testing

1984-03-12

1986-07-29

Lacey, David L.

Chemistry: analytical and immunological testing

Process or composition for determination of physical state...

Corrosion resistance or power

73 612, 73 86, 422 53, 166902, G01N 3100, G01N 1700

Patent

active

046031138

ABSTRACT:
Techniques and apparatus are described for measurement of corrosion of drill pipe in a well bore during drilling. The techniques involve the use of a test coupon attached to the external surface of a drill string. In a preferred embodiment the test coupon comprises a metal plate mounted in an insulating material such as plastic. The test coupon is preferably secured within a recess in the external surface of a sub connected between segments of a drill string.

REFERENCES:
patent: 2994778 (1961-08-01), Marsh
patent: 3124771 (1964-03-01), Rohrback
patent: 3718034 (1973-02-01), Swearingen
patent: 4142402 (1979-03-01), Mattioli et al.

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