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中文摘要：
在钻进过程中钻井液处于循环状态,根据地层变化和压力控制的需要,需要调整钻井液体系,杂物因此进入钻柱内并可能将钻头水眼堵死,或将井下的马达转子卡住而不能正常工作,甚至需要被迫起钻处理。设计了一种钻井液随钻过滤装置,可以达到有效过滤泵入钻柱内钻井液的目的,并可实时判断出杂物是否堆满井下的过滤装置,进而确定是否有必要打捞回收井下杂物,以提高钻井的安全性。
英文摘要：
Drilling fluid is circulating during the process of drilling. Drilling fluid system always needs to be adjusted constantly with the change of formation and the requirement of formation pressure control. Under these circumstances, bit nozzles or rotor of downhole motor may be blocked and doesn＇t work because of sundries entered the drill string,even pull out of hole will be needed. Accordingly,a kind of drilling fluid filter while drilling device was designed in this paper, which can be used to effectively filter drilling fluid that pumped into the drill string, estimate whether the downhole filter device was full of sundries timely, and then determine whether the device is need to be fished or not, which can greatly improve the drilling safety.
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