当井和一个水池相接时，油通常会从井里上升，因为它与井下的水的密度不同，或者因为停留在它上方的膨胀气体的压力。
When the well reaches a pool, oil usually rises up the well because of its density difference with water beneath it or because of the pressure of expanding gas trapped above it.
实际的重晶石用量取决于井下的实际需要。
Actual Barite consumption will depend on hole condition while drilling.
他们正在千方百计设法营救被困在井下的矿工。
They were trying every possible means to rescue the miners trapped underground.
打过下班铃后，井下的工人们就从坑口上来了。
After the knock-off bell, workers came up from the mining pits.
置于井下的摄像机没有出现任何失踪矿工的信号。
Video of the camera lowed into the coal mine showed no sign of the missing men.
同时，对其在煤矿井下的安全应用提供了有力的保证。
Thus, it is significant to improve the flameproof feature on this type enclosure used in coal mine.
钻柱在井下的受力极度复杂，甚至工作在腐蚀性介质中。
The pressure of the under well drill rod which even works in the caustic medium is extremely complex.
地面与井下的信息传输是井眼轨道自动闭环控制的核心。
Information transmission between ground and down hole is the of key the closed-loop control system of wellbore trajectory.
阐述了我国煤矿井下的腐蚀环境和采煤设备的防护现状。
This paper describes the corrosion surroundings of Chinese underground collieries and the present protection state of coal mining equipment.
煤层开采后，一些工作面出现了砂层水渗入井下的现象。
When the seam was extracted, water from the sand layer penetrated into some coal faces.
当时在井下的24名矿工全部丧生。他们的遗体已经找到。
All 24 miners underground at the time of the blast were killed. Their bodies have been recovered.
智利救援人员正准备将33名从8月5日就被困井下的矿工拖出地面。
Chilean rescue workers are preparing to extract the 33 miners who have been trapped underground since Aug. 5.
铣鞋通常用于除去井下的碎屑或者研磨掉整个或部分套管。
A mill is usually used to remove junk in the hole or to grind away all or part of a casing string.
由于煤矿井下的工作条件比较恶劣，电动机的故障率特别高。
Since the fact that the work condition under the shaft in coal mine is comparatively odiously , electric motor block rate is particularly tall.
井下的环境监测和人员定位是矿井安全管理中最为重要的环节。
In security management in mine, underground environment monitor and person localization are the most important.
对于立井提升作业的矿山，防坠罐笼是联系平地和井下的纽带。
For the mine of shaft hoisting operations, anti-dropping cage is the link of contacting the ground and underground.
本文所设计的瓦斯预测报警系统可以连续监测井下的瓦斯浓度变化。
The system of gas predicting alarming is designed by the paper, and it can monitor continuously the change of gas density under mine.
该系统可用于提高煤矿企业的科学管理水平，保证井下的安全生产。
This system will make for increasing level of control and assurance safety in mine production.
这种情况下，一旦电缆作业不可能时随钻测井确保了井下的一些测量。
In these situations, the LWD measurement ensures that some measurement of the subsurface is captured in the event that wireline operations are not possible.
深井下的环境是呈高酸性的，即意味着在这样的环境中有大量的氢存在。
The environment is highly acidic in deep wells. "That means there's a lot of hydrogen in the environment, " he said.
在BP的例子里，井下的石油承受着很大压力，因此它非常想从井洞里逃出来。
In the BP example, the oil in the well is under pressure, and so it wants to emerge from the hole that created the well.
随钻井下的安全性工作包括很多方面，因此要求井底进行相关的处理控制也很多。
The drilling security work under the well includes many aspects, thus requiring process and control associated well bottom also more.
对辽上矿区金矿通风系统进行网络解算，完善了通风系统，改善了井下的作业环境。
According to the ventilation network calculation of Liaoshang mine area, the ventilation system and the working condition under the mine were improved.
简要分析了这些采油井结垢的原因，对取自2口采油井井下的4个垢样进行了分析。
The reasons for scale formation are discussed concisely and 4 scale samples taken from 2 wells are analysed.
电子压力计因其精度高，可以更清楚地反映井下的微小压力变化，最大限度地获取地层信息量。
For high accuracy of electronic gauge, it can reflect minor change of pressure at down hole clearly and obtain information furthest.
煤矿井下的特殊环境限制了现有的以光纤或视频电缆为传输介质的矿井视频监视系统的推广应用。
The special circumstance of mine limits the abroad application of existing mine video supervising system which is based on fiber medium and video cable medium.
提出了一种以恒定电流驱动白光led的矿用直流开关电源，给矿井下的直流电机车和矿灯供电。
Presents a constant current white LED driver for mining DC switching power supply to the mine under the DC power supply locomotives and miner's lamp.
对钻柱在井下的受力状况已进行过许多理论研究，但对钻柱在井下的实际工作状态的研究还不多。
The theoretical study for drilling string has been in progress for many years, but the real working state of drilling string still remains to be solved.
系统能够同时对井下气体中甲烷、一氧化碳等多种危险气体的浓度和井下的温度、湿度等进行检测。
The system can simultaneously monitor the concentration of methane, carbon monoxide and other dangerous gases and temperature and humidity in the coal mine.
系统能够同时对井下气体中甲烷、一氧化碳等多种危险气体的浓度和井下的温度、湿度等进行检测。
The system can simultaneously monitor the concentration of methane, carbon monoxide and other dangerous gases and temperature and humidity in the coal mine.
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