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- Keywords drill shoe;casing drilling;liner drilling;Weatherford; 可钻式钻鞋;套管钻井;尾管钻井;威德福公司;
- Keywords drill stem;antenna;telemetering; 钻杆;天线;遥测;
- Keywords Drill hole;Concrete pulp;Transportation; 钻孔;混凝土料浆;输送;
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- Keywords drill bits;cutter sharpening/fuzzy optimization; 钻头;刃磨/模糊优划;
- Keywords drill pump technical modification bearing recondition; 钻井泵;技术改造;轴承;修复;
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- Keywords drill rod joint;surface hardening;wearing resistance;boriding; 钻杆接头;表面硬化;耐磨性;渗硼;
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- drill shoe 条播开沟器
- Keywords drill pipe;corrosion fatigue;corrosion by H_2S;inhibitor;imidazoline; 钻杆;腐蚀疲劳;硫化氢腐蚀;缓蚀剂;咪唑啉;
- Keywords Drill jam;Underwater blasting;Compressive strength;Bangalore torpedo; 卡钻;水下爆破;抗压强度;爆破筒;
- Keywords Driller Pin timbering Experiment Analysis; 钻机;锚杆支护;试验;分析;
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- Keywords drill assembly;drill bit side force;curved wellbore;elastic curved bars;MWR; 钻具组合;钻头侧向力;弯曲井眼;弹性曲杆;加权余量法;
- Keywords drill stem mechanics;bottom hole assembly;steerable assembly;mathematicalmodel; 钻柱力学;下部钻具;导向钻具;数学模型;
- Keywords drill pipe,finite element,simulation,load analysis,vibration,parametrical model,ANSYS; 钻杆;有限元;仿真;受力分析;振动;参数化模型;ANSYS;
- Keywords drill pump crosshead guide rare-earth compound inoculation normalizing whole abrasive scratch; 钻井泵;十字头导板;稀土复合孕育;正火;全磨拉伤;
- Keywords: GPRS; GPS; GIS; Protocol; Design?? 关键词：通用分组无线业务；全球定位系统；地理信息系统；协议；设计??
