气侵泥浆降低泥浆泵的效率。
气侵泥浆的精确密度可以用加压泥浆比重秤测量。
Accurate density of gas-cut mud can be measured using a pressurized mud balance.
只有当返出到地面的泥浆大大低于它实际的密度时才能推断出发生了气侵。
A gas cut is inferred only if the mud returning to the surface is significantly less dense than it should be.
基于气体侵入井眼后按气液两相流型分布的原理，利用声波可以早期检测到气侵。
Based on the theory of two-phase flow pattern of gas and liquid, gas cut change can be detected with acoustic wave after gas flowing into wellbore.
且常发生井漏、气侵、坍塌性卡钻、井涌与井喷等井下复杂问题，导致机械钻速低与钻井事故频发。
Low penetration as well as drilling incidents of high frequency resulted from problems caused by leakage, gas migration, collapsing sticking, well kick, blowout and so forth.
声波气侵早期检测方法是一种先进的方法。
The sonic wave sending technique of early air cutting detecting is an advanced one.
以环空气液两相流动为理论基础，建立了井筒气侵流动计算模型，同时给出了计算模型的数值求解方法。
Based on the theory of annular gas-liquid two-phase flow, a model to calculate gas-cutting fluid flow in wellbore is established, and meanwhile a numerical solution to the model is given.
以环空气液两相流动为理论基础，建立了井筒气侵流动计算模型，同时给出了计算模型的数值求解方法。
Based on the theory of annular gas-liquid two-phase flow, a model to calculate gas-cutting fluid flow in wellbore is established, and meanwhile a numerical solution to the model is given.
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