查询词典 well drilling

With the electromagnetism theory and the characteristic of the well-drilling equipment,the paper brings forward the engineering technique of using drill stem as antenna in the telemeteing system of well-drilling.

此类系统大多是利用电磁波来传递信息的测试系统。发射电磁波的天线的形式和尺寸的选择，很大程度上决定了该系统的技术优势和整体成本。

Nowadays,oil and gas exploration is widely undergoing development in the world and drilling horizontal well technology is the major support for highly efficient oil and gas well in order meet the rapidly increased numbers of horizontal well,to meet the requirement of explorative difficulty and to meet the development trend of this technology competition of horizontal well drilling.

当今世界范围内正加大油气勘探开发投入，水平井已成为高效开发油气的重要技术支撑，水平井的数量也迅速增多，以适应油气勘探开发技术难度普遍增大的需求及水平井技术实力竞争加剧的趋势。

Proposed the gas well drilling rock debris pellet collision causes the overcut, thus causes the well deviation viewpoint; And has analyzed the rock partical collision to the well circumferential stress influence, whether to determine the gas drilling jitter overcut to provide the computation basis.

提出了气体钻井岩屑颗粒碰撞导致井径扩大，从而引起井斜的观点；并分析了岩石颗粒碰撞对井周应力的影响，为判定气体钻井是否失稳和井径扩大从而引起井斜提供计算依据。

In order to obtain higher single-well output and reduce the cost in drilling, sidetrack horizontal well drilling is conducted in the old wells in Tahe Oilfield.

为了获得较高的单井产量，减少钻井费用问题，塔河油田针对不同的井身结构，逐步对老井进行侧钻水平井施工。

Next, take the rock mechanics as a foundation, has analyzed the gas drilling broken rock mechanism; Thought that the gas drilling broken rock mechanism is different with the conventional drilling fluid well drilling, the bottom of the well rock destruction way destroys for the volume, the bottom of the well rock and the drill bit contact plane disproportionality causes the gas well drilling well diviation another reason.

其次，以岩石力学为基础，分析了气体钻井破岩机理；认为气体钻井破岩机理不同于常规钻井液钻井，井底岩石破坏方式为体积破坏，井底岩石与钻头接触平面不均衡性是导致气体钻井井斜的又一原因。

The air well drilling is one kind of practice underbalance drilling,compared with other well drilling relatively have one's own advantages improve the speed of drilling,Protect the oil gas from bearing formation,find the oil and gas in time,but require especial equipment,Minimum displacement in the air well drilling is the difficult point,and its key too.

空气钻井是一种实用的欠平衡钻井，与其他钻井比较有自己的优势：提高钻速，保护油气层，及时发现油气，但装备要求高；空气钻井中最小排量的是难点，也是其关键点。

Nitrogen drilling ; deep well ; drilling technology ; underbalance

氮气钻井；深井；欠平衡钻井

Suitable for vertical well drilling goisting, cage channel of vertical well drilling, port load and unload derrick ,and tower crane.

适用于开设立井提升、立井罐道港口装卸起重机、建筑用塔式起重机。

Coal seam methane well ; drilling technology ; non-linear contact analysis ; Downhole Hammer Drilling ; rotary drilling

吉林大学；张龙飞煤层气井；钻井工艺；非线性接触分析；潜孔锤钻进；回转钻进

Be living in the deep well ultradeep well prospecting process ,Since radial direction force 、Eddy is stird 、Elements such as horizontal vibration and so on being ,In the wake of well drilling time the increase ,The auger post writings is used the casing inside wall crossrange strenuously to broaden ,It is more and more grave to cause casing and drilling rig to join the wornout problem .

论文摘要：在深井超深井勘探过程中，由于径向力、涡动、横向振动等因素的存在，随着钻井时间的增长，钻柱作用于套管内壁的侧向力增大，导致套管和钻具接头磨损的问题越来越严重。造成钻具耐磨带失效的主要原因有地层研磨性、钻杆的井下工况、耐磨材料选择与

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。