The fracturing of oil well is a main measure to improve the oil production.
油井压裂作业是油井增产的主要措施。
Sand plug always occurred during fracturing in slant well or directional well.
斜井或定向井在压裂过程中，经常因出现砂堵导致施工失败。
Sand plug always occurred during fracturing in slant well or directional well.
斜井或定向井在压裂过程中，经常因出现砂堵导致施工失败。
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