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词语钻杆拆分为汉字：
钻字的拼音、笔画、偏旁部首、笔顺、繁体字，钻字字源来历，钻字演变
1. 钻 [zuān]2. 钻 [zuàn]钻 [zuān]用锥状的物体在另一物体上转动穿孔：～孔。～木取火。～探。进入：～心。～营。钻 [zuàn]穿孔洞的用具：～床。～头。电～。……
杆字的拼音、笔画、偏旁部首、笔顺、繁体字，杆字字源来历，杆字演变
1. 杆 [gān]2. 杆 [gǎn]杆 [gān]较长的棍：～子（ａ．长棍；ｂ．方言，指揭竿而起的人；ｃ．指结伙抢劫的土匪）。旗～。桅～。电线～。杆 [gǎn]器物上像棍子的细长部分：～秤（区别于台秤等）。笔～儿。～菌。量词，用于有杆的……
汉语拼音：zuàn gǎn
The measured length of each joint of drill pipe or tubing is added to provide a total depth or measurement to the point of interest.
每节钻杆或油管的测量长度相加可提供至所研究位置的总深度。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。is good, the use stratum was more widespread, promotes the drill rod to carry on the reverse to close the putty mouth ahead of time.
特点是钻头密闭性较好，使用地层较为广泛，提升钻杆需先期进行反转合上进泥口。BOP valve, and proper subs on the rig floor ready to stab in case of emergency.
全阀（球阀）、扳手、钻杆内防喷器、配合接头准备到钻台上，以便应急使用。Referring to the condition that occurs when the kelly is all the way down, so drilling progress cannot continue.
方入是指发生了这样的情况，即方钻杆全部进入到补心内，导致钻井进程不能够继续下去。An apparatus and method for a modified horizontal directional drilling assembly for drilling pipe into a drilling surface.
用于将钻杆钻入钻探面的改良型水平定向钻探组件的器械和方法。The kelly bushing (KB) has an inside diameter profile that matches that of the kelly, usually square or hexagonal.
方钻杆补心的内径通常与方钻杆的外径（通常是四方钻杆或六方钻杆）相匹配。A strengthening guide sleeve capable of enlarging the rigidity of the drill rods is arranged at a site where the drill rods are connected.
该机的钻杆与钻杆之间连接处采用了能够加大钻杆刚性的加固导向套。Mud This pressure must be under control, and we control it by means of the mud which we circulate down the drill pipe.
这种压力必须加以控制，我们让泥浆顺着钻杆向下循环，用这种方法来控制压力。