Unit OneLesson TwoThe Bitinterfer with干涉;阻碍;干扰button球齿diamond金刚石齿compact硬质合金齿longevity寿命a full-gauge hole足尺寸井眼an undergauge hole 欠尺寸的井眼get stuck卡钻sidewalk人行道sharpen削尖encounter遇到be made up of由…组成compromise折中;中和guesswork猜测wildcat well初探井fly completely blind盲目地乱闯oil and gas reservoirs油气层hydrocarbons烃;碳氢化合物a luxury automobile豪华汽车time-consuming费时的soft dirts软盖层intermesh with啮合shank钻头柄gain acceptance得到承认culprit犯人;问题所在milled-tooth bits铣齿钻头tungsten carbide insert bits碳化钨镶齿钻头forge铸造binder粘合剂blend混合withstand承受have some advantage over…比…有优势transmit impact shock to 把冲击力传给fuel economy燃油节约brittle脆性的pliable易弯的;挠性的bounce 跳钻leg of the bit钻头巴掌jet nozzles喷嘴interchangeable可互换的elongated 延长的center jet中央喷嘴side jet侧面喷嘴spall剥落flake off脱落ball bearigns滚珠轴承roller bearings滚柱轴承journal bearings轴颈轴承bearing pin轴承轴galling擦伤;磨损nonsealed bearings非密封轴承sealed bearings 密封轴承shirttail of the bit钻头的掌尖elastomer 人造橡胶,弹性材料pressure compensator压力补偿器diaphragm隔膜bit evaluation钻头分级评定cone skiding牙轮拖刮pinched bit 挤压变形后向心收缩的钻头jam夹挤break-in钻头磨合;试钻cone interference牙轮相互干扰cone erosion牙轮腐蚀sandblast paint off a wall 喷沙除漆cracked cone破裂的牙轮ledge地层的台肩migrate转移off-center wear偏磨cone offset牙轮移轴stiff drilling assembly刚直的钻具组合flex弯曲center coring钻头中心被掏空tracking problem钻头齿迹问题slam猛力顿钻unfeasible 不可实行的;不可行的chipped cutters被击碎的切削齿insert loss镶嵌齿脱落gritty粗沙的frustration挫折;烦脑junk sub打捞工具flat-crested wear磨平;平顶磨损directional holes定向井horizontal holes水平井grid plot栅格图案circle plot圆周图案ridge plot脊背图案carat克拉flush 冲洗,淹没;与…齐平radial flow径向流;辐向流cross-pad flow 金刚石镶嵌瓣形流feeder主流道;高压流道collector 次流道;低压流道crow's foot爪形radiate out向外辐射catalyst metal催化金属polycrystalline wafer聚晶片lathe车床pockets孔窝stringer夹层splinter碎片downhole motor井底马达turbodrill涡轮钻deflect the hole井眼造斜bent sub弯接头stud cutter支柱切削齿cylinder cutter长柱切削齿rake angle倾角back rake angle后倾角perpendicular垂直的aggressiveness攻击性chatter振动vibration振动distirbute分布,分配side rake angle 侧倾角optimum最佳porcupine bits箭猪毛式钻头critical危急的;严重的crucial重要的disintergating散落junk slots岩屑槽leach out沥除;滤去hybrid bits混合钻头diamond-impregnated pad or s孕镶金刚石瓣或支柱dolomite白云岩granite花冈岩fortify加强hemispherical半球的project凸出versatile多面手的heterogeneous formations非均质地层shovel铁铲;铲running time使用时间positive displacement tools螺杆钻具;容积式钻具ventiltion grooveridge set diamondsurface set diamondcarbide tooth bit with seated journal bearings compact landnozzle bosspilot pinring lock cone retainerboronized journalspecial metal inlayspressure compensatorsteel alloy合金钢nickel镍molybdenum钼chromium铬silicon硅cobalt钴carburizing渗碳quenching淬火immerse淹没temper回火on-center不偏心;不移轴off-center偏心,移轴straight-on直接punch冲孔fracture破碎cone offset牙轮移轴interfit配合;啮合adjacent邻近的tip-to-tip齿尖对齿尖journal angle轴颈角度pin angle轴承轴角度shatter打碎cone-shaped insert bits 锥形镶嵌齿hemispherical cylinder insert bits 半球形镶嵌齿bit gauge 钻头保径齿;井壁切削齿gauge areas 井壁切削齿区域gauge cutters=gauge row=heel row保径齿;井壁切削齿排hydraulics水力virgin formation新岩层kick井涌blow out井喷reactive 活拨性的nonreactive惰性的barite重晶石drawback缺点have to do with与…有关系surfactant表面活化剂watercourses水眼;水道hole -cleaning井眼清洁velocity速度self-sharpening wear自行锋利磨损bradding 牙轮钻头齿撞碎或弯卷gauge rounding背锥面变圆advent出现;到来outwear 比…耐磨precision精确optical industry光学工业surgical instrument手术用器件rarity稀有程度synthesize合成graphite石墨polycrystalline diamond compact(PDC)聚晶金刚石复合片thermally stable polycrystilline (TSP)热稳定聚晶金刚石scratch刮削modulus of elasticity弹性系数,模量deform变形foam cushion泡沫垫thermal conductivity传热性aluminum铝igneous(molten) rock火成岩vocanoes火山岩lava熔岩;火山岩sedimentary rock沉积岩Brazil巴西Venezuela委内瑞拉gem quality宝石质量的transparent透明的opaque不透明的cube-shaped立方体形的octahedral八面体的dodecahedral十二面体的monocrystalline单晶体shank钻头柄flank侧面matrix胎体profile外形;轮廓single-cone profile单锥体外形double-cone profile双锥体外形parabolic profile抛物线外形concave profile凹顶外形gauge protection保径面grit-sized natural diamonds沙粒大小的天然金刚石bit whirl钻头偏心回转spiraling action螺旋形动作innermost cutters 最里面的切削齿pound砸击overgauge hole超过尺寸的井shatter粉碎delaminate脱层PDC layer PDC焊层chunk大块clog堵塞jet deflection bits喷射造斜钻头eccentric bits偏心钻头tight hole problem卡钻问题core bit取芯钻头sidetracking bit侧钻钻头permanently永久地electrical impulses电脉冲sound waves声波gamma rays伽玛射线neotron rays中子射线compressive strength抗压(缩)强度elasticity弹力;弹性plasticity可塑性porosity多孔性pore pressure孔隙压力overburden pressure盖层压力overlying formations盖层stickness粘附力plowing挖掘shearing剪切plowed furrow犁沟grind the rock磨碾岩石millstone磨石slice切片abrasive cherts 刮磨性硅石石灰岩quartzites石英岩drag and twist刮削与搓捻limestone石灰岩turbine涡轮bit classification钻头分类evaluate评定;评价grade dull bits 磨损后钻头的分级dull bit classification钻头磨损分级ring gauge环规round to四舍五入break-even analysis 盈亏平衡分析hostile险恶的;敌对的foolproof极坚固的pointers注意事项increment增加;增量。