An explosive tool is disclosed. The explosive tool comprises a body
structure, a charge, a detonator to ignite the charge via propagation of
thermal energy, a pressure actuated safety to prevent propagation of
sufficient thermal energy to ignite the charge when the pressure actuated
safety is subjected to a surface pressure and to not prevent propagation
of sufficient thermal energy to ignite the charge when the pressure
actuated safety is subjected to at least a predefined pressure threshold,
and a temperature actuated safety to prevent propagation of sufficient
thermal energy to ignite the charge when the temperature actuated safety
is subjected to a surface temperature and to not prevent propagation of
sufficient thermal energy to ignite the charge when the temperature
actuated safety is subjected to at least a predefined temperature
threshold. The charge, the detonator, the pressure actuated safety, and
the temperature actuated safety are contained within the body structure.