摘要
不同类型的复合射孔器,在井下产生的压力参数不同,对地层的作用效果也不同。通过对内置式、下挂式、外套式和多级脉冲式4种类型复合射孔器在井下产生的压力-时间p-t曲线的监测,分析和对比,揭示了它们各自产生的压力参数特点、地质作用效果及适用性;其中多级脉冲复合射孔器集中了各种类型的优点,能产生较好的压力效果,为施工优化提供了依据。
Various types of composite perforator have their respective effects on formation because they produce different pressure parameters in wellbore. By monitoring, analyzing and correlating pressure-time curves produced with built-in-type, suspended-type, oversleeve-type and multistage pulse-type composite perforator, the characteristics of their pressure parameters, and corresponding geological effect and applicability are clarified, in which the multistage pulse-type composite perforator concentrates advantages of all types and may produce best pressure effectiveness. These cognitions are helpful in optimizing perforating operation.
出处
《测井技术》
CAS
CSCD
2007年第1期66-71,共6页
Well Logging Technology
关键词
复合射孔
地质效果
p-t曲线
峰值压力
composite perforating
geological efficiency
p-t curve
peak pressure
