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1)  underbalanced tripping
欠平衡起下钻
2)  under-balanced drilling
欠平衡钻井
1.
Gas acquisition and interpretation & evaluation under under-balanced drilling;
欠平衡钻井条件下气体采集与解释评价
2.
Effect of annular cuttings on negative pressure in under-balanced drilling process;
欠平衡钻井环空岩屑对井底负压的影响
3.
Practical drilling fluid technology for under-balanced drilling;
实用欠平衡钻井钻井液技术
3)  underbalanced drilling
欠平衡钻井
1.
Bottomhole pressure control technology in underbalanced drilling;
欠平衡钻井井底压力控制技术
2.
The prediction technology of hole enlargement ratio in the condition of underbalanced drilling;
欠平衡钻井条件下的井径扩大率预测技术
3.
The new well control device for underbalanced drilling process;
欠平衡钻井过程中的井控新设备
4)  underbalance drilling
欠平衡钻井
1.
A brief analysis of mud logging operation during underbalance drilling;
欠平衡钻井条件下的录井作业浅析
2.
Some forward requirements for the identification and evaluation of geological logging with drilling gas-bearing reservoirs have been carried out by the application of underbalance drilling technology.
欠平衡钻井是天然气钻探最有效的钻井工艺技术之一,在大港、大庆油田等勘探区域成效显著。
3.
While underbalance drilling spreads greatly, rotating blowout preventer, as a kind of high technical product, is the crucial equipment to control well pressure.
国内欠平衡钻井普遍实施 ,要用到的旋转防喷器是关键设备 ,技术含量高。
5)  under balanced drilling
欠平衡钻井
1.
Study of free clay phase oil in sea water drilling mud used in under balanced drilling;
欠平衡钻井无粘土相海水水包油钻井液研究
2.
Therefore, using aerated drilling fluids and under balanced drilling techniques can not only meet with the geologic requirements but also ensure the normal drilling.
为此 ,采用充气 (氮气 )钻井液欠平衡钻井技术 ,满足了地质要求 ,保证了正常钻进 ,这是国内首次成功采用充气钻井液欠平衡压力钻井技术解决严重井漏的井例。
3.
Low density drilling fluid is used for under balanced drilling.
欠平衡钻井采用低密度钻井液,中子孔隙度的测井响应和常规井眼流体有一定差异。
6)  under balance pressure drilling
欠平衡钻井
1.
Using under balance pressure drilling technique aims at preventing the mud loss and pollution of Palaeozoic limestone reservoir in this area and therefore protecting oil reservoir.
该井四开钻探过程中成功地采用欠平衡钻井技术钻穿寒武系凤阳山组,以防止该区古生界灰岩储层发生井漏及储层污染,从而保护油层。
2.
It is discussed that the feasibility and necessity of under balance pressure drilling technology using in coalbed gas development in China,considering the characteristics of coalbed gas reservoir and coalbed gas well in China.
结合我国煤层气储层及煤层气井的特点 ,探讨了在我国煤层气地面开发中利用欠平衡钻井技术的可行性和必要
补充资料:氨合成平衡速率氨平衡合成率
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性质:又称氨合成平衡速率氨平衡合成率。在不同的催化反应条件下,氨合成反应达到一定程度的化学平衡时氨合成的反应率或合成率。在实际氨合成生产中,不可能达到平衡氨合成率,在工业上设计氨合成塔时,就必须着眼于它的运行能最大限度地接近平衡氨合成率。

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