The perforation is often done in underbalance conditions, however with
simultaneous injection of proppant to enhance near-well bore conductivity,
perforating can be done in extreme conditions.

The gun consists of scalloped hollow-carrier casings that house the charge
tube, the charges and primacord which direct the train of detonation.

The detonating devices or firing heads are of two basic types:

• Impact-actuated firing device
• Pressure-actuated firing device

The accessories include but are not limited to:

• Debris barrier, which blocks pipe or tubing debris from falling on and
  blocking off the firing pin, and serves as a production vent.
• Impact-actuated vent which is a tool that is used when the need for
  a closed string BHA arises.

These details allow for designs that optimize the performance of the well, taking
into consideration casing and reservoir characteristics.

ADVANTAGES

• It makes for shortest possible completion time
• It allows for immediate perforation clean up
• It has the ability to perforate long or multiple intervals in a single trip
• Eliminates ballout/breakdown
• Reduces stimulation costs
• Safety is assured as controlled well conditions prevail during perforation
• It performs efficiently in highly deviated wells
• Perforating and testing can be achieved in one trip

APPLICATIONS

• Completion formations with high permeability (at least 5 to 10 millidarcies), low
  bottom hole pressure, and near-well bore damage/high skin factors
• Completions where underlying water or overlying gas cap precludes
  hydraulic fracturing
• Pre-fracturing evaluation in formations with marginal permeability and
  reservoirs where water content might be excessive

If you would like more information on this tool, please fill out our Service Request Form.