作为一种ofdrilling位岩层已被广泛使用，显著改善的直接降低钻井成本bitfunction，特别是在近十年toimprove最快。 用生命和钻井速度可以针对两个属性，其对​​最终钻进资本水平的影响。 的penetrationand使用年限的有效方式进步的比特率是降低钻井成本，h​​avematerial证明了钻速提高比钻头寿命improvementto降低钻井成本较大的影响，它钻头切削structureimprovement是最直接的方式 进步渗透的比特率。 由于很长一段时间，人们切割结构的改善首先focuson主切削齿结构，如碳化钨齿structureaspect，人们创造了一个楔子，铲齿，如部分茶匙oftooth，牙齿磨损，等等。 未来十年，人们逐渐查看togauge结构也对渗透andlife的比特率大的影响，特别是在大斜度井和井用计withreasonable结构位，许多新规结构是研讨会，开发和useto牙轮钻头 优异的结果被获得。

作为一种钻头岩石仪器已经INUSE中，明显改善位功能，直接降低钻井成本，特别是近十几年来进步最快的。 用生命和钻探ratetwo特性的目的，他们最终确定位影响extentof钻井成本。 提高钻进速度，并利用其bit的寿命是降低钻井成本的有效方法，有数据证实thatthe改进的钻速比钻头寿命改进reducedrilling成本较大，高比特切割structureimprovement的影响是提高 渗透的比特率是最直接的方式。 长期以来，人们对切削结构的改进首先集中onthe主切割结构，在硬质合金齿结构来看，forexample，人们发明了楔形，铲齿，如齿partialteaspoons，牙齿磨损，等等。

As a kind ofdrilling bit rock formation has been widely used, significantly improved bitfunction of direct reduce drilling cost, especially in nearly a decade toimprove the fastest. Use life and drilling rate can target two properties, their effects on final bit drilling capital levels. Progress bit rate of penetrationand the use of the useful way of life is to reduce drilling cost and havematerial proved that the drilling rate improved than the bit life improvementto reduce the effects of drilling cost is bigger, it bit cutting structureimprovement is the most direct way to progress the bit rate of penetration. Since a long time, people to the improvement of cutting structure first focuson the main cutting tooth structure, such as tungsten carbide tooth structureaspect, people has created a wedge, shovel teeth, such as partial teaspoons oftooth, tooth wear, and so on. The coming ten years, people gradually view togauge structure also has large influence on the bit rate of penetration andlife, especially in the high Angle Wells and well use bit of gauge withreasonable structure, many new gauge structure were seminars to develop and useto the cone bit superior results are obtained.

As a kind of drilling bit rock instruments has been inuse, bit function of distinct improvement directly reduce the drilling cost, especially in recent ten years the fastest progress. Use life and drilling ratetwo characteristics can aim, they eventually determine bit affects the extentof the drilling cost. Improve the rate of penetration and to use life of thebit is an effective way to reduce drilling cost, there are data confirmed thatthe improvement of drilling rate than the bit life improvements to reducedrilling cost is bigger, the influence of high bit cutting structureimprovement is to improve the bit rate of penetration is the most direct way. For a long time, people to the cutting structure improvement first focused onthe main cutter structure, in terms of cemented carbide tooth structure, forexample, people have invented the wedge, shovel teeth, such as partialteaspoons of tooth, tooth wear, and so on.