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- conventional hole assembly 常规钻具
- This is the BHA[bottom hole assembly] log. 这是井下钻具组合的记录本。
- Make up bottom hole assembly (BHA). 组合下部钻具。
- Please pull out of hole and change bottom hole assembly! 请起钻,换下部钻具结构!
- A kind of rotary steering stabilizer used in a common rotary bottom hole assembly to control well path was developed. 在普通旋转钻具的基础上,研制了一种旋转的近钻头稳定器,它可以将钻柱稳定在井眼截面的需要位置,以控制井眼轨道。
- The basic assumptions, equations and boundary conditions for bottom hole assembly (BHA) analysis were discussed. 讨论了下部钻具组合分析的基本假设、基本方程和相应的边界条件。
- With the progress of drilling technology, bottom hole assembly (BHA) has been developed rapidly to control well trajectory. 随着钻井技术的进步，以控制井眼轨道为目的的下部钻具组合发展迅速。
- A mechanical model of bottom hole assembly (BHA) with eccentric bits is established and the solution of this model was given by means of numerical method. 采用静力分析的方法,建立了偏心钻头底部钻具组合的力学模型,并完成了对力学模型的求解。应用数值计算方法,分析了偏心钻头底部钻具组合的受力和变形特性。
- The tangency point of Bottom Hole Assembly is located at where the drill string just touches the wall of the borehole, and the contact force is zero here. 在计算底部钻具组合的受力和变形时,以前一般都是按弯矩为零的条件来确定其上切点的位置。
- Make up bottom hole assembly. 组合下部钻具。
- The paper presented 3 kinds of bottom hole assembly, analysed the advantages of downhole steering technique, discussed the problems such as rock carrying and recommended some solutions. 给出了3种钻具组合形式，分析了井下导向技术的优势，探讨了携岩等技术问题并推荐了解决办法。
- Considering the design parameters effect on the drilling tendency,the conception of drilling tendency angle was proposed as an evaluation index for the bottom hole assembly(BHA) design. 考虑钻具的设计参数对钻进趋势的影响,提出了钻进趋势角的概念,以此作为底部钻具组合设计效果的评价指标。
- His strength in a crisis is an ace in the hole. 临危不惧是他的看家本领。
- "How are you?" is a conventional greeting. “你好”是一个习惯问候语。
- The nuns are living in the convent. 修女们住在修道院里。
- He often speaks a few conventional remarks. 他总是喜欢说老生常谈的那几句话。
- Jack was assigned to the assembly shop of the factory. 杰克被分配到厂里的装配间工作。
- James voiced the conventional wisdom about it. 詹姆士说了对此事的一般看法。
- He chiseled a hole in the door to fit a new lock. 他在门上凿了个孔，以便装一把新锁。
- "Good morning" is a conventional greeting. "早安"是习用的招呼语。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
