查询词典 underbalance

And the optimize of underbalance drilling fluid is gone on in view of stratum and reservoir geologic characteristic in DaQing oil field, finally a suit of reverse emulsion drilling fluid system fitting DaQing oil field underbalance drilling is established, and it is successfully used and verified in erbalance drilling construction work, the effect is very ideal. Additional the well control technique and commensurable auxiliary technique of underbalance drilling are also systematically analysed, a suit of auxiliary technique and well control scheme of underbalance drilling fitting DaQing oil field zone of negative pressure is established.

本文重点对欠平衡钻井负压值的影响因素及确定方法进行了研究；并针对大庆油田地层及油藏地质特征进行了欠平衡钻井钻井液体系的优选，最终确定了一套适合大庆油田欠平衡钻井的水包油钻井液体系，并成功地在欠平衡钻井施工中得到应用和验证，效果十分理想；另外，本文对欠平衡钻井的井控技术及相应的配套技术也作了系统的分析，确立了一套适合大庆油田地层特点的欠平衡钻井工艺技术配套措施及适合大庆油田地层负压特点的钻井井控技术方案。

The more effective technology and insurance are offered for future underbalance drilling.

为以后的欠平衡钻井提供了更加有效的技术和安全保障。

Finally the factor of determining the underbalance value and implementation method are described.

最后对TCP射孔设计中的负压值确定因素和实现方法进行了描述。

On the basis of the formation pressure,rational underbalance pressure and drilling fluid density are determined.

以最优的钻井成本，能实现最容易和最安全的钻井施工来衡量欠压值选得是否合理。

During conventional drilling, borehole instability is caused by the mechanical and chemical mechanism, which gets larger by the underbalance.

在常规钻井时，井壁不稳来自力学和化学作用，而欠平衡加大了这些作用机理。

Differential pressure compensating pump is a new one that can generate underbalance low pulse, it is also called underbalance pulse deep oil well pump.

压差补偿泵是一种能产生负压低脉冲的新型结构的抽油泵，又名负压脉冲深井采油泵。

A formula for calculating the minimum underbalance in lower permeability reservoir is obtained by applying a drag force function to testing data.

通过将拖曳力函数用于油田测试数据，提出了确定低渗透地层最小测试压差的公式和方法。

Underbalance drilling is one of the effective methods for protecting the sandstone reservoir and corresponding reservoir protection measures as underbalance logging are needful also.

欠平衡钻井是对砂岩储层进行保护的一种有效方法，相应地，也需要进行欠平衡带压测井等油气层保护措施。

It is helpful to removing the particles of blocking flow channel, reducing formation damage and improving underbalance perforation.Perforating-well testing operation is performed at a pressure higher than the minimum underbalance.

在大于最小测试压差下进行射孔测试联合作业，有利于堵塞地层的细小微粒返排出来，减少地层损害，提高负压射孔效果。

The underbalance drilling technology is researched in view of stratum and reservoir geologic characteristic in DaQing oil field highlighting XuJia WeiZi east oil field in this text, it takes active role for valid development of DaQing deep zone natural gas and adding oil outcome. In this text the influential factor and establish way of underbalance drilling drawdown are stressly researched.

本文针对大庆油田地层及油藏地质特征，对大庆油田欠平衡钻井工艺技术应用进行了研究，重点对徐家围子等东部油气田开展了欠平衡井钻井工艺技术应用研究，为大庆深层天然气的有效开发，为探索欠平衡钻井工艺技术在开发井中的有效利用，增加油气产量起到了积极的推动作用。

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％。