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合金的崩刃和脫落非但直接影响鑽探效率,同时还增加了非生产时間,縮短了机械的使用寿命及造成管材的大量耗損。由于孔內合金崩刃、脫落較多,这时碎合金对鑽头、岩心管磨損甚厉,特别是絲扣一经磨穿就容易发生鑽头脫落和岩心管折断事故,万一孔內不正常或者殘留岩心过多,該事故就难以处理。另外亦容易发生卡鑽事故。严重地影响着鑽探計划任务的完成。因此,我們着重的对它进行了分析研究,認为合金的崩刃和脫落的原因,主要是由于技术規范及技术操作上掌握不当所致。並据此制訂了予防措施。現将我們在予防与处理合金崩刃和脫落中的实际体会写在下面,供大家研討。合金崩刃与脫落的予防一、在选擇使用合金上应选擇硬度及抗压强度大的和靭性强的合金。这佯,合金在高压快速廻转下能承受压力和担当阻力,防止合金崩刃。要使合金硬度大和耐磨性高,則要使用含鈷成份少的台金。从BK
Alloy collapse and fall off not only directly affect the drilling efficiency, but also increased non-production time, shorten the service life of the machine and cause a lot of pipe wear and tear. As the hole alloy collapse edge, shed more, then the broken alloy on the drill, core tube wear and tear, especially after the threaded wear is prone to bit off and core tube breakage accident, if the hole is not normal Or too much residual core, the accident is difficult to handle. In addition it is also prone to stuck pipe accident. Seriously affected the completion of the drilling program mission. Therefore, we focus on its analysis and research, that the alloy collapse and fall off the main reasons are due to technical specifications and technical operations due to improper. And accordingly formulated preventive measures. Now we are in the prevention and treatment of alloy collapse and fall off the actual experience written below, for your discussion. Alloy chipping edge and off to prevent a choice of alloy should choose the hardness and compressive strength and toughness of the alloy. This paradox, the alloy can withstand the pressure in the high-pressure rapid rotation and bear the resistance to prevent the alloy chipping. To make the alloy hardness and high wear resistance, you should use less cobalt containing Taijin. From BK