Multistage cementing is used for long casing strings to reduce pump pressures and to reduce pressure on the formations.

多级注水泥用于长套管柱，以降低泵压并降低作用于地层的压力。

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Multistage cementing is used for long casing strings to reduce pump pressures and to reduce pressure on the formations.

多级注水泥用于长套管柱，以降低泵压并降低作用于地层的压力。

youdao