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- staggered round flake PDC bit 交错式圆片状复合片钻头
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- The drilling speed in Zhuangxi oilfield is raised significantly by using PDC bit. PDC钻头在胜利油田桩西地区的成功应用,大大地提高了该地区的机械钻速。
- The treatment technology before and after welding of PDC bit is the main factor which affects the welding strength. PDC钻头焊前脱水方式、焊后炉中冷却初温与冷却时间等工艺参数的合理选择是提高PDC钻头焊接强度的基础。
- According to the optimization design,a new type of PDC bit was produced and got better result when it was used in the multi-interbedded formation. 根据该设计制造的一种新型复合式PDC钻头在多夹层地层中取得了较好的应用效果。
- Based on existing anti-whirl technologies and the idea of flexible bit, a new kind of flexible anti-whirl PDC bit is designed. 回旋是导致PDC钻头失效的主要原因,在研究国内外抗回旋技术的基础上,基于挠性钻头的创新思想,设计了新型挠性抗回旋PDC钻头。
- The fellness of the blow staggered him. 那凶猛的一击使他站立不稳。
- This paper describes the surface test and field application of using explosive method to dispose PDC bit fishing accident. 介绍了大庆油田利用爆炸破碎后打捞的方法，处理PDC钻头落井事故的地面试验及现场施工情况。
- The paint's beginning to flake off. 油漆开始成薄片状剥落。
- Bit selection, mainly focused on PDC bit for the front-hill formation was presented, taking reference of the bit using in the offset well. 针对山前构造的地层岩性特征,从复合片、刀翼形状、齿型、切削齿力平衡等方面设计和改进了PDC钻头。
