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- Surface tests on three water-jet perforating techniques show that hydraulic perforating can penetrate the casing string and the cement sheave rapidly, and it is able t... 3种水力喷射射孔技术的地面试验研究表明,水力射孔技术可快速射穿套管和水泥环,能够满足油水井射孔需要;现场应用表明,大部分油水井见到了明显的增产增注效果。
- In the finite element model the gap elements are arranged at the ends of girder element of the tube string to simulate the contact and friction among rod, tube and casing string. 通过构建双层接触间隙元，建立有限元分析模型，将油管柱、套管柱和抽油杆柱之间作为一个耦合的整体进行有限元力学分析。
- The crucial techniques circumstantiated with the optimal project,such as long casing milling,cavern tightness test,were a... 将采卤溶腔改建为储气库,大大加快了地下储气库的建设,减少了建库投资。
- In the curved interval of horizontal well,great frictional resistance can be imposed on the casing string and result in great bending stress due to the bending of the hole. 套管柱在水平井弯曲段随井眼弯曲产生较大的弯曲应力和受到较大的摩擦阻力，有可能产生强度破坏、密封失效、稳定性破坏而不能下入。
- Rotation cementing is one of the most advanced technologies in the world which is to make casing string rotate through turntable in order to improve displacement efficiency and cementing quality. 旋转固井是目前国际上最先进的固井新工艺之一,在固井施工中,通过转盘带动套管串旋转,提高水泥浆的顶替效率,提高固井质量。
- The caculations and anolyses of examples show that the application of triaxial stress theory in casing string design can take most factors into consideration and obtain the results with high preci... 给出了应用计算机实现套管柱设计的方法和步骤,并编制了相应的计算软件,结合具体设计实例,通过计算分析表明,应用三轴强度理论进行套管柱设计具有分析全面、计算精度较高的特点。
- She's had us all on a string for too long. 我们大家受她摆布已经很长时间了。
- Casing strings are rotated by torque from wellhead during casing drilling. 套管钻井中套管管柱的旋转动力来自井口所施加的扭矩。
- In such a case a little goes a long way. 这种情况下，一点点也有很大作用。
- There was a long lag in forwarding mail to us. 转寄给我们的邮件晚了很久才拿到。
- You can keep my book as long as you like. 我的书你要借多久都随你的便。
- Fruit juices ferment if they are kept a long time. 果汁若是放置很久，就会发酵。
- The beggar spun a long yarn about his misfortunes. 那个乞丐编造了一大篇自己如何遭遇不幸的故事。
- How long will our food supplies hold out? 我们的储粮还能维持多久?
- The turbulator can be used to improve the centralization of the casing strings, to allow the fluid to form spiral flow, as well as to improve the displacement efficiency. 使用旋流扶正器既可提高套管的居中度,又可对流体进行导流而形成螺旋流,还可以提高环空水泥浆对泥浆的顶替效率。
- Optimizing Casing String Design under Cost Constraint 成本约束条件下的套管柱优化设计
- It was a long trudge up the hill. 那段上山的路很难走。
- Mr Jones has a long history of heart trouble. 琼斯先生有长期的心脏病史。
- Cream cakes are no long a luxury. 奶油蛋糕再也不是奢侈品了。
- It took a long while to do the work. 做这个工作花了许多时间。
