Well cleaning method and apparatus using detonating cord...

Details Well cleaning method and apparatus using detonating cord... Well cleaning method and apparatus using detonating cord...

2007-12-11

2007-12-11

Bagnell, David (Department: 3672)

Wells

Processes

With explosion or breaking container to implode

C166S311000, C166S063000

Reexamination Certificate

active

10964787

ABSTRACT:
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.

REFERENCES:
patent: 2100807 (1937-11-01), Kinley
patent: 2136881 (1938-11-01), Johnson
patent: 2362829 (1944-11-01), Kinley
patent: 2414349 (1947-01-01), Alexander
patent: 3721297 (1973-03-01), Challacombe
patent: 4757863 (1988-07-01), Challacombe
patent: 2004/0168805 (2004-09-01), Fripp et al.

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