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浮阀接头
浮阀接头通常连接在钻头的上方,用来控制井 底的流液。当停泵接单根时,可防止钻屑回流堵塞水 眼;当出现井涌时,可阻止流液流进入钻具内,起到 钻具防喷阀的作用。
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浮阀接头
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Float valve sub
Float valve sub is usually connected at the top of the bit to control down hole liquid.While stopping pump and connecting with single,it can prevent waterhole from being plugged by reflowing drillings. When blowout occurred,it can serve as splash valve to prevent liquid flowing into drilling tools.
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