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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!
- The analysis model carried out the all kinds of mechanical parameters simulate the stress behaviour in bottom hole s casing cement by the effect of wellbore temperature loading. 首先分析井壁温度加载作用，井壁温度、三种异质材料之力学参数对水泥段的应力关系。
- Aim To analyse the static temperature field ofthe solid rubber tire(SRT). 分析车辆实心橡胶轮胎稳态温度场。
- The BHT lies between the bottomhole circulating temperature (BHCT) and the bottomhole static temperature (BHST). 井底温度的大小介于井底循环温度(BHCT)和井底静态温度(BHST)之间。
- 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。
- The static temperature field distribution of flanged joints was simulated by 3-D FEA,the results show that the calculative values accord well with data of the measurement. 利用3-D有限元法模拟了法兰接头的稳态温度场分布,结果表明计算值与实测数据吻合较好。
- 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 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。
- 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。
- Taking solar energy as a drive thermal resource, the static temperature distribution at some time, the dynamic state change of temperature, pressure and desorption speed with time was analyzed. 以太阳能为驱动热源，分析了吸附床内温度在某时刻的静态分布以及温度、压力和脱附速率随时间的动态变化。
- 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。
- static temperature field distribution 稳态温度场分布
- 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。
