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- 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!
- Computer simulation of drillstring axial vibration and online monitoring of bottom hole condition. 钻柱轴向振动仿真与井底状态监测方法探讨。
- According to this problem,this paper proposes a modified isochronal well test with bottom hole liquid loading. 针对这个问题,提出了一种存在井底积液时的修正等时试井资料解释方法。
- Bottom hole pressure changes complicatedly in suction well of double porosity reservoir. 双重孔隙介质油藏油井抽汲生产将使井底压力变化十分复杂。
- 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 paper analyses the existing state of steam quality of refinery,discusses the causes to pollute steam quality,and points out the measures to control steam quality. 对炼油厂蒸汽品质的现状进行了分析,探讨了造成蒸汽品质污染的原因,并提出了控制蒸汽品质的措施。
- 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。
- Appropriately over-hot design , make the steam quality is good .It is an ideal product for habiliment factory , washing store , packing house ,and so on. 适当的过热设计，蒸汽品质好，是服装厂、洗涤店、食品厂等行业的理想产品。
- The problems of steam quality are analyzed，and the relevant measures are putted forward.Good effects are acquired，after the measures were putted in practice. 对蒸汽品质存在的问题进行了研究，提出了解决的方案并加以实施，取得了良好的效果。
- The modified isochronal well test data with bottom hole liquid loading will have abnormity, causing a fail of processing with the original theory or much error. 摘要存在井底积液的修正等时试井资料会出现异常，使原有理论无法处理相应的测试资料或处理的结果误差较大。
- In this paper the target and influential factors are analyzed, the steps to improve the steam quality are put forward,which is of great directive meaning. 分析了蒸汽品质的指标及影响因素,指出了提高蒸汽品质的措施,对烟草工业用汽的安全和经济运行具有一定指导意义。
- Through numerical modelling, this paper studies the process parameters of steam drive such as steam injection rate, production injection ratio, and steam quality. 利用数值模拟方法对蒸汽驱中注汽速度、采注比和蒸汽干度等工艺参数进行了研究。
- With the fractal geometry theory, this paper puts forward a new rock drillability testing method by selecting detritus from bottom hole as object. 利用分形几何理论，研究了钻井过程中岩石破碎机理及形成过程，提出了一种以井底返出的岩屑为对象的岩石可钻性测试方法。
- The bottom hole flow physical model of a kind of PDC coring bits is established considering the effect of junk slot and teeth layout in this paper. 以一种现场常用的PDC取心钻头为原型,充分考虑排屑槽和切削齿对于井底流动的影响,建立了与实际相接近的PDC取心钻头井底流场的物理模型。
- 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。
- In routine overbalanced drilling, the bottom hole pressure towers above the formation pressure so that the mud fluid will leak into the formation. 常规过平衡钻井方式打开油气层时，井底压力高于地层压力，钻井流体会向地层渗滤甚至漏失。
- The modified isochronal well test data with bottom hole liquid loading will have abnormity,causing a fail of processing with the original theory or much error. 存在井底积液的修正等时试井资料会出现异常,使原有理论无法处理相应的测试资料或处理的结果误差较大。
- A model is established to calculate the steam quality distribution along the well bore during steam injection of thermal recovery wells, based on related thermodynamics and hydromechanics principles. 利用热力学、流体力学原理,建立了热采井注汽过程井筒沿程蒸汽干度分布计算模型。
