An apparatus for controlling a wellbore energy train may include a firing
head, a detonator cord associated with the firing head, and a plurality
of serially aligned modules. Each module may include an enclosure, a
first portion of a high order detonation material positioned at one end
of the enclosure, a second portion of the high order detonation material
positioned at the other end of the enclosure, and a low order detonation
material interposed between the first portion and the second portion. A
method for controlling an energy train generated in a wellbore may
include serially aligning a plurality of the modules along the path of
the energy train, and detonating at least one of the plurality of modules
by detonating a detonator cord.