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动态负压射孔是一种在射孔瞬间清理射孔孔道的新方法,其原理是在引爆射孔弹瞬间产生巨大负压,引起瞬间涌流,冲洗射孔孔道及周围损害带。由于静态负压射孔只能缓慢地产生较小的负压,所以动态负压射孔清洗得更加彻底干净。通过现场应用分析,得到动态负压射孔能够产生更小的表皮系数,并简化实际动态负压力产生曲线,得出各个参数对射孔效果的影响,更好地指导现场施工设计。
Dynamic negative pressure perforation is a new method to clean perforation at the moment of perforation. The principle is to generate huge negative pressure momentarily during detonating perforation, cause instantaneous inrush current, flush perforation tunnel and surrounding damage zone. As static negative pressure perforation can only slowly produce a smaller negative pressure, dynamic negative pressure perforation was more thoroughly clean. Through the field application analysis, dynamic negative pressure perforation can produce smaller skin coefficient, and simplify the actual dynamic negative pressure generation curve, get the effect of each parameter on perforation effect, and better guide on-site construction design.