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- Intermediate casing damages not only affect normal drilling and exploration progresses, but also induce wellbore abandoning and huge economic losses. 技术套管损坏不但会影响下一步钻探工作的顺利进行,严重的还会导致井眼报废,造成巨大的经济损失。
- Because the mud density was reduced too much when drilling the fifth spudding wellbore at one time, the intermediate casing was weared out. 沙84井四开井段钻遇复杂地层,钻井周期长,多次起下钻,造成技术套管磨损。
- 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。
- 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。
- The character of the intermediate case structure and load is analyzed in detail. Then the states of stress and strain of 38 aerodynamic load states, 141 maneuvering load states and combined load states are calculated with Finite Element Method. 详细分析了中介机匣的结构特点和载荷特点,用有限元法分别计算了 38 种气动载荷状态、141 种机动载荷状态以及气动与机动组合载荷状态下中介机匣的应力、应变状态。
- 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。
- Intermediate casings are under severe wear in the drilling duration of mega-extended-reach wells. 在超大位移井的钻进过程中,造斜段的技术套管会发生严重的磨损问题。
- 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。
- Processing technique of intermediate casing 中介机匣加工工艺
- 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。
- Causes of Intermediate Casing Damage and Treatments in Sha 84 Well 沙84井技术套管破损原因分析及处理
- In that case you'll have to clear yourself. 那样,你只得自行辩白了。
- 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。
- In this case, let's start earlier. 既然这样,我们就早点开始。
- Optimizing Casing String Design under Cost Constraint 成本约束条件下的套管柱优化设计
- Analysis and Countermeasures against Intermediate Casing Damages in Deep Wells 胜利油田深井技术套管损坏原因分析及对策研究
- I've passed the intermediate level exam of Japanese. 我已经通过了日语的中级水平考试。
- Nothing short of this could mend the case. 不这样就不能挽回局面。
- The Supreme Court gave a fair trial to the case. 最高法院对这一案件作出了公正的审判。