转盘（RotaryTable）HOLDDOWNNUTS1/8in.(3.2mm)CLEARANCE(NeW)KELLY BUSHINGSAFETYGUARDDRIVEPINDRIVE HOLEROTARYTABLESTABBINGFLOATINGRINGSKIRTBOWLMASTERBUSHING
钻杆DrillPipe钻链Drill Collar接头（Tooljoint）方钻杆Kelley钻杆drill pipe稳定器Stabilizer钻头RockBit接头sub钻柱组成Compositionof drill string
钻 铤Drill Collar 稳定器Stabilizer 接 头(Tool joint) 钻 头Rock Bit 接 头sub 钻 杆drill pipe 钻 杆Drill Pipe 方钻 杆Kelley 钻柱组成 Composition of drill string
钻头(RockBit)CHAISTENSEIinsertbit(CourtosyofSmith
LEGWELDEDPINCOVERCAPPRESSURECONECTIONEQUALZINGDIAPHRAGMLUBRICANTPRESSUREEQUALIZERLUBRICATIONVENTPASSAGEWAYCONEBALLPLUGWELDINNERBEARINGBUSHINGSHIRTTAILBEARINGSPINDLESEALTHRUSTOUTERBEARINGBEARINGROLLERBALL BEARINGSg.4.5.Sealedbearing milledtoothbitnomenclature(CourtesyofSmlthToolCompany）
起升系统（Hoistingsystem）●井架（derrick）绞车（drawworks）钢丝绳（wire rope、fast line、deadline)●天车（Crown）游动滑车（travelingBlock）·大钩(Hook)