由于井内钻井液流速的变化,使井内液柱压力发生变化,所增加的压力叫激动压力。所降低的压力叫抽汲压力。两者统称为波动压力。 减少波动压力的措施有哪些(1)控制起下钻速度不要过快,在钻开高压油、气层和钻井液性能性不好的情况下更应注意。(2)在起下钻具的操作中,防止快速下放和急刹车,以免引起过大的由惯性力产生的波动压力。(3)要控制好钻井液性能,防止因钻井液粘度、切力过高产生更大的波动压力。
压力突然波动 rapidpressurefluctuation 波动压力 oscillating pressure ; fluctuating pressure 经受压力突然波动的开孔 Fluctuation ; openings subject to rapid pressure fluctuation ..
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... 钻柱排代量drilling fluid displacement 波动压力(激动压力)surge pressure 抽汲压力swabbing pressure ...
基于44个网页-相关网页
压力突然波动 rapidpressurefluctuation 波动压力 oscillating pressure ; fluctuating pressure 经受压力突然波动的开孔 Fluctuation ; openings subject to rapid pressure fluctuation ..
基于40个网页-相关网页
稳态波动压力 steady surge pressure ; steady-state wave pressure
瞬时波动压力 transient surge pressure
抽吸波动压力 swab-surge pressure ; surge pressure
压力波动 [油气] pressure fluctuation ; pressure surge ; fluctuation of pressure
稳态波动压力计算 Stable-state surge pressure calculating
波纹管差动压力计 bellows differential gauge
井底压力波动 bottom hole pressure surge
压力波动缓冲罐 surge relief tank
接触压力波动 contact pressure fluctuation
波动压力是影响井眼稳定的主要因素。
Surge pressure is a major factor which affects borehole stability.
利用多元参数回归的方法,建立了求解偏心环空波动压力的经验模式。
The experience model of eccentric annular has been established by using multiple regression analy8is.
模拟结果表明,在高于功产生的临界温度梯度时,波动压力振幅被显著放大。
The simulation result shows that the dynamic pressure amplitude was amplified obviously when the temperature gradient was above the critical value.
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