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- The styrene-butadiene latex cement slurry system can help to raise the elasticity and toughness of oil well cement sheath. 丁苯胶乳水泥浆体系有利于提高油井水泥环的弹性和韧性。
- In order to dissolve the cement sheath fully and ensure the operation safety,we determine the reaction time,acid flushing turns and operation process. 以充分溶解水泥环为目的,以保证施工安全为前提,确定了酸洗的反应时间、次数和施工工序。
- During theimpact remedial operation,the lifting height of the casing swage is the main factor influencing the length of cement sheath damaged. 研究表明,冲击整形方法中,整形器的提升高度是影响水泥环损伤长度的主要因素,当冲击次数达到一定值后,冲击次数对水泥环的损伤影响较小。
- The influence to the signal of stratum is complicated, because of the coupled function of metal casing and cement sheath and stratum. 由于套管与固结水泥环和地层之间的耦合作用,它们对地层信号的影响是复杂的。
- Reselecting elastic and geometric parameters of casing and cement sheath can adjust the distribution of forces to casing. 通过改变套管、水泥环的弹性参数和几何参数可以改善套管的受力状态，这一结论对于流变地层中的套管设计具有重要指导意义。
- The characteristics of the deep wells and ultradeep wells include a large depth,high temperation,a thin cement sheath and being very difficult to make well cementing. 深井、超深井的特点是：井深、温度高、水泥环薄、固井难度大。
- In order to dissolve the cement sheath fully and ensure the operation safety, we determine the reaction time, acid flushing turns and operation process. 以充分溶解水泥环为目的，以保证施工安全为前提，确定了酸洗的反应时间、次数和施工工序。
- In order to get more accurate logging data, it is very important to do research on the influence rule of metal casing and cement sheath to cross-well electromagnetic logging. 为了得到更精确更趋于实际的测井数据,研究套管和水泥环等对井问电磁测井的影响规律具有非常重要的意义。
- Practice showed that the combination of CBL and ultrasonic impedance log provides accurate information about the cementation of cement sheath and the coupling of the cement to pipe and formation. 同时使用超声脉冲和CBL测井仪可以精确地确定水泥壳的胶结情况及水泥与套管、水泥与地层的胶结质量。用实例说明了基于超声脉冲声阻抗测井的声阻抗差分技术在检测泡沫水泥固井质量的应用效果。
- Thermal stress and expansion of wellbore are analyzed through ANYSIS finite element analysis in accordance with the problems of steam channeling,sand production and broken and bailed cement sheath. 针对蒸汽吞吐时发生汽窜、地层出砂及水泥环破裂掏空的情况,利用ANYSIS有限元分析的数值模拟,对井筒热应力和热膨胀进行了分析。
- It suggests that the clearances between the thin beds not well cemented and casings and cement sheathes may be examined if CBL logging combination of various frequency exists. 并据此认为，若有不同频率的CBL测井组合，可能查明未胶结好的薄层及套管与水泥环间的间隙。
- Lab test of destruction of cement sheath outside casing 套管水泥环的室内破坏试验及力学分析
- Expansibility and contractibility of Class A cement sheath A级水泥环的胀缩性能
- Put the dagger back in its sheath. 把短剑插回鞘内。
- The building is made of hydraulic cement. 大楼是用水硬水泥建造的。
- Forming or enclosed in a sheath. 有鞘的形成鞘的或装在鞘内的
- Cement output next year would be57 million tons. 明年的水泥产量(将)有5700万吨。
- The front of the brick house was faced with cement. 这栋砖房的正面抹了一层水泥。
- Our object is to further cement trade relations. 我们的目标是进一步加强贸易关系。
- Concrete is made of cement, sand, stone and water. 混凝土是由水泥，砂子石头和水混合做的。
