锥bitasarock-drillingtoolshave beenwidely usedindrillperformanceimprovementsdirectly减少thecost钻，特别是在矿井过去decademost改善。

Twoperformance indicatorsofthelife anddrilling速度，他们将eventuallydeterminethe extentofthedrill bitdrilling成本。 Increasedrilling speedand服务lifeofthedrillisan有效waytoreduce钻井成本。

drillinga更大impactthantheimprovementofthebit生活海图确认thatthepenetration rateimprovementstoreducethecost，includingtheimprovementofthebit切割structureisthe最directwaytoimprovecone bitsROP。

时间长了，theimprovementofthecutting structureismainly concentratedinthemain cuttingtoothstructure，thestructureofthecarbideteeth，forexample，peoplehaveinvented thewedge-shapedteeth，勺子shapedteeth，partialtopspoon-shapedteeth，穿oftooth。

在thepast十年，peoplegradually实现ofthedrilldrilling speedandlifehave较大的影响thattogagethe结构，特别是inhighly deviatedand水平

wellsapplicationsdrillsrequiresareasonablegagestructure，许多newgagestructureachieved goodresultsinthestudydevelopedand应用tothecone位。

Cone bitasarock-drillingtoolshave beenwidely usedindrillperformanceimprovementsdirectly reduce thecost of drilling, especially inthe past decademost improved.

Twoperformance indicatorsofthelife anddrilling speed, they will eventuallydeterminethe extentofthedrill bitdrilling costs. Increasedrilling speedand service lifeofthedrillisan effective waytoreduce drilling costs.

Thedata confirm thatthepenetration rateimprovementstoreducethecost of drillinga greater impactthantheimprovementofthebit life, includingtheimprovementofthebit cutting structureisthe most directwaytoimprovecone bitsROP.

A long time, theimprovementofthecutting structureismainly concentratedinthemain cuttingtoothstructure, thestructureofthecarbideteeth, forexample, peoplehaveinvented thewedge-shapedteeth, spoon-shapedteeth, partialtopspoon-shapedteeth, wear oftooth.

Over thepast decade, peoplegradually realized thattogagethe structure ofthedrilldrilling speedandlifehave a greater impact, especially inhighly deviatedand horizontal

wellsapplicationsdrillsrequiresareasonablegagestructure, many newgagestructureachieved goodresultsinthestudydevelopedand applied tothecone bit.