By using a wave generator, the self -exciting pressure waves can be generated when well pumping unit works.
抽油井正常工作时，借助波动器可在井底产生自激压力波。
In view of the selection of measuring projects and methods for distributed oil well pumping units, the comparative research is stated.
针对分散式抽油机井测量项目和测量方式的选取，提出比较性研究。
The author analyses the domestic made long stroke well pumping units both in use or in developing and points out the significance of the transformation of lengthenings…
并对国内已经生产及正在开发的各种长冲程抽油机进行了剖析，指出了对现场在用的常规及异相抽油机进行增程改造的意义。
In this paper, the compositions, working principles and its advantages and shortcomings of automatic control system for a single-well pumping installation are presented.
本文介绍单井自动控制抽油装置的组成、工作原理及其优缺点。
According to the failure site data of the well pumping unit in active service, its life statistical model is determined and the service reliability is evaluated quantitatively.
由在役抽油机故障的现场数据来判定其寿命统计模型，实现对抽油机使用可靠性的定量评定。
Engineers had spent days pumping heavy drilling fluid into the leaking well head on the ocean floor in a high-pressure bid to smother the gushing crude and ultimately seal the well with cement.
工程师们数日来一直向海底的泄漏油井泵入大量的钻探泥浆，希望用高压堵住喷涌的原油，最后用水泥封死油井。
I hope these recipes help you stay healthy and keep your heart pumping well into the future!
我希望这些处方可以帮助你保持健康，使你的心脏永远健康！
Crews are slowly pumping heavy drilling mud into a cap on the top of the well, to push down hydrocarbons that are already present in the well pipe.
工程人员正在缓慢地将特殊泥浆注入井口上的控油罩，将油井管道中已经形成的碳氢化合物压在下面。
Further improvements in drainage canals and pumping equipment in the older sections of the city were also made. These operated well until they were overwhelmed by Hurricane Katrina in 2005.
城市其他老城区的排水渠道和排水设备有有了进一步的提高，这些设施直到被2005年卡崔娜飓风淹没之前，一直运转良好。
As well as pumping more blood, the scar tissue was reduced and the walls of the heart became thicker.
除了泵血增加，瘢痕组织也减少了，而且心脏壁的厚度也增加了。
"Halliburton (and perhaps BP) should have considered redesigning the foam slurry before pumping it at the Macondo well," the letter said.
“哈里·伯顿(可能BP也)应该在将泡沫泥浆注入马孔多钻井之前考虑重新设计它，”信中说。
BP oil company has begun pumping heavy mud into a blown-out well in the Gulf of Mexico in an effort to seal it off permanently.
能源公司BP开始对墨西哥湾破损油井注入大量泥浆，试图永久封堵这口漏油的油井。
Install, test, maintain and repair water well pumps, piping systems and equipment and perform pumping tests to assess well performance.
安装，测试，维护和修复水井泵，管道系统和设备，并进行抽水试验，评估水井性能。
When there is a foam column is the annular space of a pumping oil well there will be no distinct gas-oil interface.
当抽油井的环形空间中出现泡沫段时，将会失去明显的油-气界面。
Pumping recovery well has a low efficiency in system generally at present.
抽油机井目前普遍存在系统效率偏低的问题。
Healthy heart exercises can get the heart pumping as well as reducing the chances of suffering from hypertension. A good exercise program can also keep weight manageable.
心脏健康训练可使心跳速率变得正常，还能减少患高血压的风险。适度的训练还能很好地保持正常的体重。
The paper gives brief calculation and analysis for the artificial well efficiency, which aims at the optimization design for pumping unit and for reference.
文章仅对抽油机井系统效率进行简单分析与计算，旨在为优化设计抽油机运行参数提供参考。
It has a higher geometrical transmission efficiency as well as a better pumping uniformity.
它不仅有很高的几何传输效率，而且还可以大大地提高泵浦的均匀性。
The operation involves pumping heavy mud into the well, and eventually sealing it permanently with cement.
这次作业是把粘稠的泥浆注入油井，最终用水泥将它永久封死。
In the three-dimensional value simulations for pumping and dewatering, the processing for pumping well is a difficulty.
三维数值模拟抽水降水问题中，抽水井的处理是一个难点。
Brief introduction on strata in construction area and reviewed drilling technology and well completion technique, and meanwhile explained pumping test and water quality.
简介了施工区地层，论述了钻井技术要点和成井工艺；说明了抽水试验及水质概况。
The stresses in salt rock surrounding a cavern are lower than those in the virgin ground and with distribution as hydrostatical pressure surrounding a pumping well.
盐岩洞室周边附近区域内围岩的应力较低，其分布呈现出抽水井附近的水压力特征。
The design layout, key process of construction, such as well point drilling quality, filtrating quality, well washing quality, continuity of pumping were discussed.
阐述了管井井点排水的设计布置及井点钻孔质量、三滤质量、洗井质量、抽水连续性等关键工序的施工技术。
Theory and experiment show that bandwidth of FOPA depends on pumping wavelength and pumping power, optical fiber nonlinear coefficient as well as dispersion characteristics.
理论和实验研究表明，参量放大的带宽取决于泵浦波长和泵浦功率、光纤非线性系数、光纤的色散特性。
The well used mechanical oil pumping hold about 90% to total well and the well used oil pumping with pole hold about 80~85% to well used mechanical oil pumping.
世界上采用机械采油的井数大约是总生产井数的90％，而采用有杆泵抽油的井数是机械采油井数的80～85％。
The well used mechanical oil pumping hold about 90% to total well and the well used oil pumping with pole hold about 80~85% to well used mechanical oil pumping.
世界上采用机械采油的井数大约是总生产井数的90％，而采用有杆泵抽油的井数是机械采油井数的80～85％。
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