Unit One
Lesson Two
The Bit
interfer 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 groove
ridge set diamond
surface set diamond
carbide tooth bit with seated journal bearings compact land
nozzle boss
pilot pin
ring lock cone retainer
boronized journal
special metal inlays
pressure compensator
