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- But the two stage tools used to so far are mostly required to drill the rubber plug or cement plug out after the cementing job is done. 但目前所使用的双级注水泥工具固井后均需用小钻杆钻除胶塞和水泥塞，费用高、时间长。
- Keywords deep well;two stage cementing;two stage cementer;future trend; 深井;双级固井;双级注水泥器;发展趋势;
- two stage cementing 双级固井
- Gradient multi-setting cement slurry system can take the place of double stage cementing in long isolation sections in certain degree, and it displaces many advantages. 对于封固段较长的固井作业,采用梯度多凝水泥浆体系,在一定程度上可以代替双级固井,具有很强的优越性。
- Acrylate, DDBSA and DMF were used to react under a two stage. 丙烯酸盐，DDBSA和二甲基甲酰胺之间的反应常常分二个阶段。
- A two stage growth process for metastable pits was suggested. 提出了一个亚稳态蚀孔生长的两阶段模型。
- The Bretton woods system broke down in two stages. 布雷顿森林体系的垮台分为两个阶段。
- The surgery consists of two stages. 手术由两个阶段组成。
- The evacuation was to be carried out in two stages. 整个移民安置计划分两个价段进行。
- The newly developed cooling system has a high efficient two stage radiator. 最新被开发的冷却系统拥有高效率的两阶段冷却。
- The plant will be commissioned in two stages. 开机调试的过程分两个阶段进行。
- This exercise is divided into two stages. 这项工作分两阶段进行。
- The troops will be pulled out in two stages. 撤军工作分两步进行。
- These two stages witnessed supernormal growth of the rural economy. 在这两个阶段农村经济呈超常规增长。
- Two stages passed, briefness quantify and accurate quantify. 它经历了两个阶段,简单定量阶段和精确定量阶段。
- During the first two stages, USA and USSR played an important role. 从以战建国到和平建国的转变中,美国、联的作用不可低估。
- An organization implements records management in two stages. 组织分两个阶段实施记录管理。
- The viewer uses a viewer sorter to sort its elements in two stages. 查看器使用查看器排序程序以便采取两个步骤对它的元素排序。
- The accessories of MSC/HSC Stage Cementer include a first-stage plug, free-fall opening plug, closing plug, shut-off baffle and pumping-down opening plug. 重力塞为流线形，内部装有铅，投塞后快速自由下落至下滑套上并形成密封。
- The approach includes two stages: pretreatment and optimization. 该方法主要包括调度预处理与优化两个步骤。
