井

A constant ultra-low density slurry system is developed to fit for three different thermometric well conditions,which means the low temperature well (BHCT:49℃),medium temperature well (BHCT:89℃)and high temperature well (BHCT:170℃).

研究出分别适用于低温（此处指井底静止温度为49℃的井况）、中温（此处指井底静止温度为89℃的井况）以及高温（此处指井底静止温度为170℃的井况）条件下的恒密度超低密度水泥浆体系。

In practical engineering the occurrence of heat transfixion can be reduced by reducing the value of Q, by increasing spacing of injecting and pumping wells, and by rectifying position of the injecting and pumping wells after a work cycle.

在实际工程中可降低抽、灌水量，在条件许可的情况下可提高抽、灌井的间距，并可在抽、灌井运行一个周期后调整抽灌井位置，以减少热贯通的发生。

However,with the increase of well depth, complex architectual well and transmittable speed, the wired signal transmission is the inevitable development trends of intelligent drilling.

随着井深的增加、复杂结构井和欠平衡井的增多以及对传输速度要求的提高，电缆信号传输必然是今后智能钻井的发展方向。

A dynamic formation evaluation may be also realized through the analysis of borehole gas unsteady flow, so that the analysis is an important component part of well test while drilling theory of underbalance drilling.

通过对井内气体不稳定流动的分析，还可以实现钻井过程中的动态地层评价，因此，井内气体不稳定流动也是欠平衡钻井随钻试井理论的重要组成部分。

With constant depth study of exploration activity and development, the successful drilling of SongShen 101, WeiShen 5 and XuShen1-1 and so on, the underbalance drilling technology will be universally popularized and applied in DaQing oil field especially XuJiaWeiZi and ShenPing gas field and so on, it has very important meaning for valid development of outer oil field and hydrocarbon stimulating of DaQing oil field, it also offered powerful technical support for sustainable development of DaQing oil field.

随着油气勘探开发工作的不断深入，宋深101井、卫深5井、徐深1-1等井的成功钻遇，欠平衡钻井工艺技术将在大庆油田尤其在徐家围子、升平等气田将会得到普遍推广应用，对大庆油田油气增产和外部油田的有效开发将具有十分重要的意义，为大庆油田的可持续发展提供了强有力的技术支撑。

This paper expounds the feasibility of using the underland voltage o f 10 kV in the coal mine, analyzes the problems existing in the current use of t he underland voltage of 10 kV in the coal mine, makes comparison of the power-s upply schemes of the underland voltage of 10 kV and 6 kV in a certain large-sca le coal mine, and puts forward corresponding suggestions for the levels of the u nderland voltage of the coal mines with different scales.

阐述了10kV电压下井的可行性，分析了目前井下采用10kV供电电压等级存在的问题，对某大型矿井10kV和6kV下井电压的供电方案进行了比较，对不同规模矿井的下井电源电压等级选择提出了相应的建议。

Pneumatic hammer drilling technology with low wob,low rate of revolution and high capacity to break rock is one of the best effective methods to solve the problems of hard rock drilling.

井斜是气体钻井中遇到的比较突出问题，井斜大或井斜增长过快常采用低钻压吊打的方式来解决，这样就牺牲了机械钻速，延长了钻井周期，增加了钻井成本。

And it is suggested to apply UBD, to optimize drilling parameters when adopting the new casing programs, to optimize WOB and RPM, to choose optimal longlife highefficiency bits, etc.

针对新场气田深井钻井周期长、机械钻速慢、现有钻井技术影响和制约后期完井和增产的实际问题，深入分析研究了影响新场气田深井钻井提速的关键制约因素，提出了优化完井井身结构、推广应用欠平衡钻井技术的建议。

I look around at the wriggly worms, crabs and tadpoles, and none of them can compare with me.

而且，我是这个井里的主人，在这井里极自由自在，你为什么不常到井里来游赏呢！

To solve those problems in extended reach wells and horizontal multibranch wells and ease the "bottleneck" of domestic pointthebit of rotary steerable drilling technology, combining theory with practice, we summarize the rotary steerable drilling technology at home and abroad, introduce two typical and popular bottom hole closed loop rotary steerable drilling tools, namely MRST and GeoPilot.

为解决在钻大位移井、水平分支井等复杂结构井时出现的种种难题以及国内指向式旋转导向钻井技术的&瓶颈&问题，将理论与实践相结合，对旋转导向钻井技术的国内外研究现状做了分析；介绍了目前国内外运用比较广泛且典型的推靠式MRST和指向式GeoPilot井下闭环旋转导向钻井工具。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。