Method for inhibiting the wear in a well casing

Details Method for inhibiting the wear in a well casing Method for inhibiting the wear in a well casing

1976-12-10

1978-08-01

Purser, Ernest R.

Boring or penetrating the earth

Processes

Boring curved or redirected bores

166255, 166242, E21B 704

Patent

active

041037480

ABSTRACT:
A method for inhibiting the wear in a well casing is accomplished by determining the depths within a bore hole of a well where a drill string may contact the well casing. The casing is then run into the bore hole with one or more hardened wear sections positioned therein for ultimate landing at the depths where the drill string may contact the casing.

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patent: 940733 (1909-11-01), Sands
patent: 1446789 (1923-02-01), Dodd
patent: 2216945 (1940-10-01), Hinderliter
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patent: 2641444 (1953-06-01), Moon
patent: 2651499 (1953-09-01), Zublin
patent: 2706615 (1955-04-01), Zublin
patent: 2758818 (1956-08-01), Kammerer, Jr.
patent: 3501173 (1970-03-01), Petersen et al.

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