冲洗过程对钻进效果有很大影响.钻进速度、碎岩工具的磨损及钻具的安全运转都与给入钻孔的冲洗液量有关.目前为了控制冲洗规程广泛应用?PM-5型和?MP-2型流量计,它能相当准确地测定给入钻具中的冲洗液量.但是,由于冲洗液在钻具接头处有漏失,所以即使地表上最准确的测定也不可能判明孔底冲洗液的消耗量.对岩心钻探时 Rinsing process has a great impact on the drilling effect.Drilling speed, wear rock tools and drilling tools and safe operation are related to the amount of flushing fluid into the hole.Currently in order to control the washing procedure widely used? PM-5 And the Model MP-2 flowmeter, which is capable of fairly accurate determination of the amount of flushing fluid to be fed into the tool, however, it is impossible to determine even the most accurate determination of the surface due to the loss of flushing fluid at the tool joint Bottom hole flushing fluid consumption