当取心钻具采用双层管时，钻进所用的钻头就需要用普通双管钻头。
Conventional double tube bits should be used as bits for drilling, while coring tool is double tube.
主要是采用风动潜孔锤同步跟管钻具造孔，可控灌浆技术进行灌浆堵漏。
The hole is drilled by downing hole hammer and controllable grouting is used in prevention with ideal result.
针对小口径火炮身管钻削加工时存在的切屑堵塞和内膛质量问题，设计了一套低频振动装置。
According to the problems of blocked chips and hole qualities in the drilling of small caliber gun barrel, a installation of low-frequency vibration drilling is designed.
通过对空气潜孔锤跟管钻进钻具的受力分析，得到影响潜孔锤跟管钻进速度和跟管深度的因素。
By analysis of enforcement of drilling tools of air downhole hammer's following pipe, the factors affecting the drilling speed and depth of the following pipe are obtained.
单动双层岩芯管钻具结构简单、操作方便、同轴度好、适用寿命长，能有效地提高岩、矿芯的完整度。
The swivel-tube barrel can effectively increase core recovery rato. suitable for drilling in formations in which oblique hole comes easy. It is effective to assure hole quality.
采用组合钻具进行跟管钻进，通过随钻跟入的套管保护孔壁，解决因钻孔垮塌导致钻探效率和岩心采取率低等技术难题。
The problems of low drilling efficiency and low core recovery due to borehole collapse were solved with pulling in casing while drilling through using combined BHA with casing.
立管内部核心是空心的(管中管)，留给钻柱使用。
The riser's inner hollow core (a pipe within a pipe) is reserved for the drill string.
他们沉降下去网、挖掘机、深海温度测量器、静态照相机、水瓶、以及取心钻管和测流计。
They lowered nets, dredges, bathythermographs, still cameras, water bottles, coring pipes, and current meters.
是否对钻咀破损有调查改善计划并减少了不良次数？是否有客观证据证明已经有管控此项？
Do action plans exist for investigating and reducing broken bits? Does objective evidence exist that this is in control?
通过这根高压管线，泥浆被泵入立管和钻忏杆。
Through this high pressure line, mud is pumped in to the standpipe and drill pipe.
是否能证明钻轴偏移管控良好？
Is there evidence to demonstrate that spindle run-out is well controlled?
钻工们卸掉安全扣合弹簧和大钳销子，换上与要上扣的钻具或管具相匹配的钳头。
The driller ensures that the safety latch springs are replaced on the tong pins.
本文介绍了薄壁管专用钻头的结构特点及工作原理，其结构设计新颖，对薄壁管的钻削有实用价值。
In this paper, the structure feature and principle of this special drill has been introduced. Its special design is very useful for drilling thin-wall pipe.
这个结果慢慢地浸入到整个钻探行业并且影响到各种辅助设备，如钻管、钻杆和深井泵。
This effect trickled down throughout the drilling industry and affected support equipment such as drill pipes, drill collars, and pump jacks.
在水平定向钻穿越管道回拖环节中，容易出现卡管现象，导致穿越失败，造成巨大的经济损失。
Pipe sticking phenomenon appears sometimes during pull-back stage of pipeline crossing with horizontally directional drilling, which results in crossing failure and great economic loss.
通过振动钻削和普通钻削的对比试验，该装置能有效地解决堵屑难题，并提高身管的内膛钻削质量。
The results of contrast testing on the vibration drilling and common drilling show that the technology can effectively resolve the problem of blocked chips and improve the hole qualities.
纤维桩：依照厂商说明使用预成钻和完成钻进行根管预备。金属桩：对桩的表面喷砂。
FIBER post: Prepare the root canal with the Pre-Shaping and Finishing drills, according to manufacturer's instructions. METAL post: Sandblast the surface of the post.
两个悬臂则固定在支架的内部结构上，并允许管架从贮存位置降到钻柱中线上。
The swing arms are fastened to the inside structure of the mast, and permit the pipe rack to be low-ered from the stored position to the centerline of the drill string.
HSQ系列绳索取心钻具，既保持了现用砂钻钻进的工艺特点，又发挥了钢绳打捞内管技术的方便性。
The wire-line coring tool of HSQ serial has kept up the technical features of conventional placer drills and derived the advanced structure from steel cable fishing tool for inner barrel.
扫描电镜结果表明金属镍、钻沉积在碳纳米管表面上。
Scanning electron microcopy images show that metal nickel or cobalt are uniformly deposited on the surface of carbon nanotubes.
带眼衬管一般用于小直径井筒或在不需对衬管注水泥(如层位封隔所要求)的储层内的侧钻。
Perforated liners typically are used in small-diameter wellbores or in sidetracks within the reservoir where there is no need for the liner to be cemented in place, as is required for zonal isolation.
利用通用的微电极夹持器在其抽吸负压的侧管上方钻一斜孔直通夹持器中央管腔。
An oblique hole through the glass pipette holder above the lateral hole for cell seal suction is drilled, through which a microcatheter o.
钻机配有一个主卷扬机、一个副卷扬机。主卷扬机用于升降钻具、下井管等。
Drilling rig equipped with a main hoist, one vice hoist, main hoist for lifting drilling, downhole tubes.
石油供应是通过渠道或钻管螺纹。
用于石化、锅炉、制冷等行业的管板，折流板和法兰盘钻。也可用于建筑、桥梁、铁塔等钢结构中的联接板钻孔。
Ideal drilling machine for tube-plates, baffle plates and flange, in petrochemical, boiler and air-condition industries, also for joint plates in building, bridge, iron tower, etc.
分析了钻(冲)孔灌注桩施工中堵管事故的原因，介绍了防止堵管的措施和堵管的处理方法。
Combined with practical construction in this paper the reasons caused the pipe blockage of concrete transfer pump are introduced.
分析了钻(冲)孔灌注桩施工中堵管事故的原因，介绍了防止堵管的措施和堵管的处理方法。
Combined with practical construction in this paper the reasons caused the pipe blockage of concrete transfer pump are introduced.
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