发明名称 Well cleaning method and apparatus using detonating cord having additional reliability and a longer shelf life
摘要 The Invention is a Well Cleaning Method and Apparatus using detonating cord having Additional Reliability and a Longer Shelf Life. The method and apparatus employs one or more subassemblies, each subassembly having a combustible material, means for igniting the combustible material, and one or more high-strength sleeves attached around portions of the combustible material to attenuate the outwardly-directed pressure wave created by ignition of the combustible material. The assemblies further exhibit staggered detonation with the simultaneous application of electrical current to all assemblies. The combustible material is further modified to add an additional outer impervious layer such that the combustible material exhibits prolonged shelf life and durability.
申请公布号 US7306038(B2) 申请公布日期 2007.12.11
申请号 US20040964787 申请日期 2004.10.13
申请人 CHALLACOMBE BRADLEY J 发明人 CHALLACOMBE BRADLEY J.
分类号 E21B37/00 主分类号 E21B37/00
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