It can lead to treatment fluid reverse flow, which cause formation contamination. After treatment, production declines dramatically, and with long period of production restoration.
作业易造成作业液倒灌污染地层，作业后产量大幅下降，产量恢复周期长。
It can lead to treatment fluid reverse flow, which cause formation contamination. After treatment, production declines dramatically, and with long period of production restoration.
作业易造成作业液倒灌污染地层，作业后产量大幅下降，产量恢复周期长。
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