Redundant firing system for wellbore tools

摘要

An apparatus for detonating an explosive body associated with a downhole tool includes a plurality of firing heads, each firing head including an initiating explosive body generating a high-order input when detonated; and a funnel configured to detonate the explosive body associated with the downhole tool by using a single high-order output. The funnel has a body that includes: a plurality of input openings, each input opening positioned next to an associated initiating explosive body to receive the generated high-order input, a single output opening, and a flow path connecting the plurality of input openings with the single output opening.

主权项

1. An apparatus for detonating an explosive body associated with a downhole tool, comprising:
a plurality of firing heads, each firing head including an initiating explosive body generating a high-order input when detonated; and a funnel configured to detonate the explosive body associated with the downhole tool by using a single high-order output, the single high-order output being formed of at least one of the generated high-order inputs, the funnel having a body that includes:
a plurality of input openings, each input opening positioned next to the associated initiating explosive body to receive the generated high-order input, each associated initiating explosive body being completely external to the funnel,a single output opening being oriented to direct the single high-order output to the explosive body associated with the downhole tool; anda flow path connecting the plurality of input openings with the single output opening.