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- This is jet bit and that is a PDC bit. 这是喷射式钻头,那是人造聚晶金钢石钻头。
- PDC bit uses polycrystalline diamond compacts (PDC) as cutters. pdc钻头用聚晶金刚石(复合片)作为刀具。
- This article looked back the use of PDC bit and put forward adverting problem. 文章回顾了PDC钻头的使用并提出了使用中应注意的环节。
- 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。
- The test basis and priniple for PDC bit performance modeling are introdced. 介绍了PDC钻头性能模拟的试验基础及原理。
- 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 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 relationship model of cone bit drillability and PDC bit drillablity is created. 建立了牙轮钻头可钻性与PDC钻头可钻性的相互关系模型。
- The surgery consists of two stages. 手术由两个阶段组成。
- It is the key to ensure that PDC bit has choiceness of the work performance to reasonably place cutting. 合理的布齿是保证PDC钻头有优良工作性能的关键。
- Presently common means of PDC bit placing cutting is to draw and adjust the scheme. 目前常用的PDC钻头布齿设计方法是图解调整法。
- 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。
- An anti_whirl technology keeping the lateral forces and cutters balanced on PDC bit for slim_hole drilling is proposed. 针对小井眼PDC钻头的实际工作条件,提出了在小井眼钻井中具有普遍意义的PDC钻头的横向力自平衡抗回旋技术。
- 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。
- Through field testing,the PDC bit suited for Sulige gas field increased drilling speed and obtained good result. 通过现场试验,大幅度提高了苏里格气田的钻井速度,取得了显著的效果。
- The troops will be pulled out in two stages. 撤军工作分两步进行。
- And the jet flow field of 4 nozzles of a PDC bit is tested by simulating the bottomhole flow field of the bit. 在模拟PDC钻头井底流场的条件下,对PDC钻头4个喷嘴的射流流场进行了测试。
- Therefore, it is necessary to analyse and predict the strength state under the complicated moving condition of PDC bit. 因此,有必要对钻头在复杂工作条件下的受力进行分析、预测。