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。
A multistage cement job is used to avoid fracturing the formation when cementing long casing strings.
多级注水泥作业用来在对长套管柱注水泥时避免使地层破裂。
A multistage cement job is used to avoid fracturing the formation when cementing long casing strings.
多级注水泥作业用来在对长套管柱注水泥时避免使地层破裂。
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