Wellbore milling inserts and mills

Details Wellbore milling inserts and mills Wellbore milling inserts and mills

1997-08-21

1999-11-16

Dang, Hoang

Wells

Means for perforating, weakening, bending or separating pipe...

Cutter rotates circumferentially of pipe

175426, 407116, E21B 1046

Patent

active

059840056

ABSTRACT:
An array of cutting inserts has been invented having a plurality of adjacent inserts, each insert comprising a body having a top surface, a bottom, and a base, and a plurality of spaced-apart chipbreaking indentations in the top surface of the body, and a strengthening ridge between adjacent indentations of the plurality of spaced-apart chipbreaking indentations, and a peripheral strengthening ridge around an outer edge of the top surface of the body surrounding the plurality of spaced-apart chipbreaking indentations.

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