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.
请注意这种低精度的测量，并未给出泥浆是否气侵。
Note that for this low-accuracy measurement, no direct mention of gas cut is made.
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.
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.
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