The advantages of gas drilling are: high drilling efficiency, effectively controlling formation damage, preventing from lost circulation and adhesive drill pipe sticking.
气体钻井的优点有：钻井效率高、有效保护油气层、防止井漏和黏附卡钻。
If the drill pipe threads become rusty, rust will have to be cleaned.
如果钻杆丝扣生锈，必须清除掉。
And we control it by means of the mud which we circulate down the drill pipe.
我们采用的控制方法是让泥浆顺着钻杆向下循环。
My company can produce all kinds of odd and even series of core drill pipe and rope.
我公司可以生产各种规格系列的单双管及绳索取芯钻具。
Before drill pipe wipes are installed, a tie-back rubber can be used to wipe the pipe.
在装钻杆刮泥器之前，可以先用简易的刮泥器刮钻杆上的泥浆。
The results show that the fatigue damage of drill pipe in well head is the most serious.
算例分析表明：钻杆在井口处的单次疲劳损伤最大；
The longer the single drill pipe, the lesser the critical compressive force of drill stem.
钻杆的单根长度越长，钻柱所能承受的临界载荷越小。
The affecting factors and degrees on the bending of coiled tubing drill pipe are analyzed.
分析了连续管钻杆弯曲状态的各种影响因素及影响程度。
And returns to the surface in the space between the drill pipe and the wall of the borehole.
然后通过钻杆和钻孔壁之间的间隙返回至地表。
This technology controls welding parameter exactly, and improves welding quality for drill pipe.
使用该技术，能及时、准确掌握焊接参数，提高钻杆焊接质量。
In drilling engineering, drill pipe often sticks in salt formation because of wellbore shrinkage.
在钻井工程中，盐岩层井眼易发生缩径卡钻。
Thread form and the length of drill pipe can be manufactured in accordance with user requirements.
钻杆螺纹形式及长度可根据用户要求制造。
Among oil well drilling equipment and tooling, the high - strength drill pipe plays a very critical role.
高强度石油钻杆在钻井设备和工具中占有十分重要的地位。
The intelligent drill pipe samples whose internal pipes expanded successfully have the excellent insulation.
经内管膨胀贴合成功的智能钻杆样件的绝缘性能良好。
Its upper end is drill pipe box or union, the nether end is casing pin. It is a crossover with hollow inside.
它是个上端为钻杆母扣或者由壬，下端为套管公扣，内空心的转换接头。
This paper introduces feature and material characteristic of aluminum drill pipe and analyzes its application.
介绍了铝合金钻杆的结构特点和材料特性，分析了其适用范围。
The rotary and carriage assembly is adapted to apply rotational, thrust and pull-back forces to the drill pipe.
旋转和机架组件用于向钻杆施加旋转、推进和回拉力。
We can provide various types of drill pipe joints as customer's demand. All mechanical properties are beyond API standard.
我公司可按用户的要求提供各种型号的钻杆接头。各项力学性能均完全超过API标准要求。
Power Tongs and Torque Turns Load Cells: Designed for use in power tongs or drill pipe make-up and break-out applications.
动力钳和自动旋紧管箍机的载荷压力传感器：设计用在动力钳或钻杆的组装和拆卸应用中。
The box taps is a special external tool cutting thread and fishing externally from dropped object such as tubing, drill pipe.
母锥是一种专门从油管、钻杆等管状落物外壁进行造扣打捞的工具。
Fit the rig tongs with the correct jaws for the drill pipe tool joint or the drill collar. Re-install the safety lock springs.
给大钳装上与钻杆接头或钻铤相匹配的钳头，再装上安全锁簧。
Therefore area array CCD is adopted for the non-contact measurement of the diameter of the abrading section of the drill pipe.
鉴于此，采用面阵CCD对钻杆受磨损部位的直径进行非接触式测量。
Vice hoist for the replacement of the drill pipe or other tools and put sand core tube can also be used for flushing operations.
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。副卷扬机用于更换钻杆或其他取芯工具及提砂筒，也可用于洗井作业。
Based on the operational principle of on/off slip of continuous-circulation system, the forced state of drill pipe was clarified.
从钻井连续循环系统上卸扣卡瓦的工作机理入手，弄清了钻杆工作时的受力状态。
The on-site tests of 5 wells showed that the stiffness of lower drill pipe assembly was increased to control deviation in the straight hole.
经现场5口井试验表明，不弯曲钻铤能够起到增大下部钻具组合刚度，控制直井段井斜的作用；
Many reasons like out sand, deposition of case dirty, falling things and cement injection can cause the drill pipe sticking and the well abandoned.
因出砂、套管垢沉积、落物、注灰等原因常造成钻杆卡钻，导致油水井报废。
Many reasons like out sand, deposition of case dirty, falling things and cement injection can cause the drill pipe sticking and the well abandoned.
因出砂、套管垢沉积、落物、注灰等原因常造成钻杆卡钻，导致油水井报废。
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