Raising the stability of outer core barrel is the main approach to extend the life of core bit and to raise core recovery and the footage of single core barrel. The outer core barrel with centralizer is an effective method to raise its stability.
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释义
提高外筒稳定性是延长取心钻头寿命、提高岩心收获率及单简进尺的最主要途径,而外筒加扶正器是提高其稳定性的有效方法。
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