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- Keywords large diameter electroplated diamond drill bits strengthened design shockproof property diameter keeping property packed hole assembly; 大直径电镀金刚石钻头;强化设计;防振性能;保径性能;刚性满眼钻具;
- packed hole assembly 满眼钻具组合
- 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。
- Because of the intense seesaw battle, the village is already bombed by the fire changes beyond all recognition, everywhere is the remnant of destroyed building, the packed hole ruins. 因激烈的拉锯战，村庄早已被炮火轰炸得面目全非，到处都是断壁残垣，满眼废墟。
- 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。
- Keywords deviation control;pendulum assembly;unbalanced drill collar;packed hole technique;inclining prevention device; 关键词井斜控制;钟摆钻具;偏重钻铤;满眼法;防斜器;
- His strength in a crisis is an ace in the hole. 临危不惧是他的看家本领。
- The auditorium was packed that night. 这天晚上，礼堂里挤满了人。
- He packed up his things and left. 他把东西装进箱子里就动身了。
- I'd only gone five miles when the engine packed up. 我刚开出5英里，汽车的引擎就出了毛病。
- The old cat quietly packed up in his sleep. 那只老猫在睡梦中静静地死去。
