Drilling Stem Vibration Analysis 钻柱振动分析
Drilling Stem Test 钻柱测试 ; 钻柱地层测试
drilling stem testing 钻柱地层测试
Three-dimension drilling stem strength analysis based on considering the torsion load and studies deformation, bend-moment, stress, the distribution characteristics of RWD BHA was made .
在考虑扭转载荷的基础上进行的三维钻柱组合强度分析，对随钻扩眼下部钻具组合的变形、钻具组合的弯矩和应力大小及其分布规律进行了研究。
参考来源 - RWD随钻扩眼下部钻具组合设计与力学行为研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Build erosive wear mode of drilling stem. From the view of mathematics, express the relationship between erosive wear quality and major erosion factors.
建立钻屑冲蚀的数学模型，从数学角度表达出了冲蚀磨损量与冲蚀影响因素间的关系。
This paper describes how the rotary drilling stem lost its stability in detail, and presents the main factors influencing drill stem stability in rotary condition.
系统地进行了斜直井中旋转状态下钻柱稳定性的试验研究，描述了旋转钻柱失稳的过程，分析了旋转状态下影响钻柱稳定性的主要因素。
AJ type safety joint is a specialized joint consisting of two parts. The specialized joint takes protective effect for drilling stem in drilling, repairing and test oil (gas) engineering, etc.
AJ型安全接头是一种由两件组装起来的专用接头，是钻井、修井、试油(气)等工程中对钻柱起保护作用的一种专用工具。
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