气侵泥浆降低泥浆泵的效率。
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.
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.
因此无论是进行出砂预测，还是进行防砂都有必要考虑气侵的影响。
So it is necessary to consider the effects of gas cut both in sand production prediction...
实时定量的监测气侵，一直是安全钻井特别是气井作业的重要课题。
It is important to detect and measure gas cutting at real time and quantitatively, specially during gas well production.
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.
在钻井过程中，气侵的超临界流体在环空相态变化将可能引发钻井井喷。
In the process of drilling, when the supercritical fluid emerged by conventional natural gas changes in phase transition, the well blowout will happen.
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.
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.
本文分析了注水障阻止气窜和油侵气顶的机理，注水障的技术要求等问题，并且对气顶底水油藏气顶气区的开发提出的指导意见。
The article analyses the mechanism and technical requirement of water flooding barrier, and suggests the guide views about exploitation of gas cap region.
本文分析了注水障阻止气窜和油侵气顶的机理，注水障的技术要求等问题，并且对气顶底水油藏气顶气区的开发提出的指导意见。
The article analyses the mechanism and technical requirement of water flooding barrier, and suggests the guide views about exploitation of gas cap region.
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