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well killing by driller
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二级井控技术
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well killing by driller
司钻法压井
发生溢流关井后,先用原密度钻井液循环排出溢流,再用加重钻井液压井的方法。又称两步控制法、二次循环法。
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outer branch
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outer coffin sculptures of Sui and Tang Dynasties
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outer density point
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outer diameter of impeller outlet
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Outer Eight Temples
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