What components comprise a conventional perforating system?
A perforating system consists of 8 main components. These include; 1) Firing Head. Is the connection point from the wireline or cable to the perforating carrier. If something should happen to the carrier and it not possible to remove it from the well a built in weak point is located within the head assembly. This facilitates cable removal from the well without extensive damage. 2) Blasting wire. In conventional perforating an electrical connection must be maintained from the surface in order to fire the detonator. The blasting wire connects the detonator to the firing head. 3) Detonator and Boosters. The detonator accepts the current from the blasting wire and fires a resistor. This action energizes the small lead azide pellet in the detonator and ignites the primacord boosters carry the detonation front from one carrier to another in tandemed gun systems. 4) Primacord. Carries the detonation front along the path to the back of the shaped charges. This detonation front moves along at ~
