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casing drilling
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套管钻井
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casing drilling
套管钻井
用套管代替传统钻杆作为钻柱,将顶驱或转盘上的机械动力和泥浆泵的液压动力传递到钻头,套管柱在钻进的同时起到封隔井眼和地层作用的技术。
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