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1、喷射钻井 jet drilling喷射钻井jet drilling%射流 jet flow淹没非自由射流 submerged nonfree jet冲击射流 impact jet气蚀射流（空化射流） cavitation jet脉冲射流 pulsed jet磨料射流 abrasive jet射流水力参数 jet hydraulic射流喷速jet velocity射流冲击力jet impact forc射流水功率 jet hydraulic horsepower射流的极点jet stagnation point射流的速度分布jet velocity distribution射流的初始段 flow
2、 development region射流的基本段 fully developed flow region射流扩散角和扩散系数jet speed angle and speed coefficient射流等速核jet patential core漫流 cross flow漫流速度 crossflow velocity射流速度降低系数 jet velocity attenuation coefficient射流动压力 jet dynamic pressure射流动压力降低系数jet dynamic pressure attenuation coefficient喷射距离 jet reach净化井
3、底 bottom-hole cleaning钻头水力参数 bit hydraulic钻头压降 bit nozzle pressure-drop钻头压降系数（Kb） bit pressure drop factor钻头水功率 bit hydraulic horse-power钻头比水功率 bit specific hydraulic horsepower喷嘴 nozzle喷嘴流道 nozzle passageways喷嘴流量系数 nozzle flow rate coefficient等速梯形喷嘴 iso-velocity gradient nozzle流线形喷嘴 streamlined noz
4、zle脉冲喷嘴 pulsed nozzle加长喷嘴 extended-nozzle喷嘴水力特性 nozzle hydraulic property喷嘴结构 nozzle configuration喷嘴组合 nozzle combination单喷嘴 single nozzle双喷嘴 two nozzle不等径组合喷嘴 unequal-diameter nozzle反喷嘴 inverse nozzle喷射角 impact angle喷嘴装置 nozzle arrangement喷嘴当量直径 nozzle equivalent diameter不等径喷嘴最佳直径比值 optimum diamete
5、r ratio of unequal diameter nozzles钻井液循环系统 drilling fluid circulating system循环压耗系数circulating pressure loss coefficient循环压耗 circulating pressure loss6 临界压耗 critical pressure loss环空压耗 annulus pressure loss8 地面管汇压耗 pressure losses in surface equipment 地面管汇 surface equipment钻井水力学 drilling hydraulic 钻井液
6、流态 drilling fluid flow pattern平板层流 flat laminar flow 塞流 plug flow 管流 pipe flow 平板度判别准数 flat plate level criterion喷射钻井的工作方式 working regime of jet drilling . 最大钻头水功率工作方式 maximum bit horse-power working regime 最大射流冲击力工作方式 maximum jet impact force regime 最大射流喷速工作方式 maximum jet velocity working regime 经济
7、水功率工作方式 economic hydraulic horse-power regime 最优钻井液流量 optimum flow rate of drilling fluid 最优喷嘴直径 optimum nozzle diameter临界井深和极限井深 critical and limited well depth 钻井泵的工作状态 drilling pump working regime 钻井泵的最大流量工作状态（额定功率工作状态）drilling pump maximum flow rate regime钻井泵的调节流量工作状态（允许压力工作状态）drilling pump maxi
8、mum regulated flow rate regime钻井泵的临界工作条件drilling pump critical working condition钻井泵的额定压力drilling pump rated pressure钻井泵的额定流量 drilling pump rated flow rate 钻井泵的额定冲数 drilling pump rated pumping speed钻井泵的最大输出功率 drilling pump maximum discharge 钻井泵的特性曲线 pumpcharateristics钻井泵的临界特性曲线 pump critical characte
9、ristic钻井泵效率 pump mechanical efficiency钻井泵水功率利用率 pump hydraulic power utilizationefficienc钻井泵压力有用分配比值 pump pressure distribution ratio能量转换效率 energy conversion efficiency井底岩面 bottom hole patterns携带岩屑 cutting carrying岩屑运移比 cutting transport ratio环空岩屑浓度 cutting concentration in annulus排屑量 cutting removal rate排屑能力 lifting capacity岩屑上返速度 cutting rising velocity最低钻井液环空返速 minimum drilling fluid annular velocity最优环空返速 optimum annular velocity.流变性 rheological property流变曲线 rheological流变参数 rheological parameter稠度系数 consistency factor
