Boring or penetrating the earth – With bit wear signal generating
Patent
1988-12-20
1990-05-22
Dang, Hoang C.
Boring or penetrating the earth
With bit wear signal generating
175329, E21B 300, E21B 1202
Patent
active
049269500
ABSTRACT:
A rotary drill bit is provided with cutting elements having a front layer of interbonded abrasive particles, such as synthetic diamonds, which layer has a thickness that varies with distance from the bit body. The characteristic relation thus obtained between bit agressiveness and bit wear can be used to monitor the bit wear condition during drilling.
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MEGAdiamond, Oct. 6, 1981.
Dang Hoang C.
Shell Oil Company
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