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二级井控技术
释义
二级井控技术
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工学
二级井控技术
释
secondary well control technology
二级井控技术
当一级井控失效后,井内的液柱压力小于地层压力,井底处于欠平衡状态,此时采取关井,控制节流阀的开度等措施实现节流循环,在井口造成一定的回压,利用该回压与井内剩余液柱压力之和平衡地层压力,抑制地层流体向井内的侵入,同时将井内的地层流体排出、重浆压井,从而重建井眼与地层之间平衡关系,恢复正常钻井作业的井控技术。
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coefficient of rank correlation
coefficient of reflection
coefficient of refraction
coefficient of refrigerating performance
coefficient of regression
coefficient of relationship
coefficient of repeatability
coefficient of residual gas
coefficient of residual strength
coefficient of restitution
coefficient of rotation
coefficient of runoff regulation
coefficient of seismic effect
coefficient of selective absorption
coefficient of self induction
coefficient of self-induction
coefficient of shear viscosity
coefficient of similarity
coefficient of skewness
coefficient of sliding friction
coefficient of soil linear extensibity
coefficient of static friction
coefficient of stiffness
coefficient of subgrade reaction
coefficient of surface tension
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