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sealing channeling by bullheading
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sealing channeling by bullheading
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sealing channeling by bullheading
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在压力允许的范围内,将水泥浆通过封窜管柱挤入井内充满所有窜槽部位,使窜通层充分吸附水泥浆,以达到封窜目的的方法。
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