The Quick Change Firing Head (QCT) is the next generation in electronic firing head,
designed to meet the need for a cost effective trigger device, without compromising safety or quality.
The QCT is a memory-based electronic trigger system specifically designed to fire ballistic firing heads.
Flexible design allows for multiple deployment options including Slickline, TCP and Coiled Tubing.
The design concept is based on a field replaceable control cartridge.
If necessary, this cartridge can be quickly and easily replaced at the well site.
No special tools are required and training requirements are minimal.
The QCT firing sequence is programmable on the surface for the relevant ballistics operations:
*Casing drilling
*Tube punching
*Pipe cutting
*Plug / Packer Configuration - Various other downhole operations

Features and Applications
*Field replaceable control cartridge
*Quick and easy relining between runs
*Can be activated with positive or negative pressure pulse code (for example for TCP or Coiled Tubing operations)
*Program sequence can be canceled and restarted while downhole
*Can be activated with a programmed accelerometer burst, for example in Slickline operations
*Accelerometer can be disabled for TCP operations
*Option available for long life TCP battery pack
*Deploy and start industry standard ballistic devices
*API-RP67 Certificate
*Vibration and shock tested at 40G

The QCT has redundant safety capabilities!


Spartek's RF Safe Addressable Switch (SRS) combined with advanced ARM/FIRE control systems,
provides a low cost and efficient RF Safe solution where single or multi-tier gun systems are deployed.
*Plug and drill
*Selected perforation
*Drilling transported by tractor
*Multi-stage drilling

The switches can be combined with 50 ohm resistorized detonators to form an API RP 67 Group 2 electronic detonator.
Combined with Spartek's PX-1 fire kit and an EBW/EFI detonator it forms a Group 3 electronic detonator system.
The security benefits of Group 3 they are especially critical in high-value offshore operations and multi-stage fracking operations.
The RF Safe Tester is available to quickly and safely confirm the gun system before going downhole.
There is a simulator for training purposes.
With over 500,000 units successfully deployed, the technology is robust and proven.

*Radio frequency (RF) safe according to API RP67
*Previous assembly in the weapons loading workshop with bypass detonators.
*Advanced and robust two-way communication
*Live 'inventory' of downhole gun systems
*ARM / FIRE encrypted electronic control of weapon detonation
*Support for > 100 switches
*Event logging and auditing of drilling operations jobs
*Simple setup: Reliability by design

Electric Detonators
Spartek Systems is a leading developer and provider of advanced systems to improve the safety of well drilling operations.
Working in accordance with API RP-67, we offer a wide range of solutions to improve both well safety and efficiency.
Group I - allows the use of 50 ohm resistorized detonators containing primary explosives,
with a minimum non-fire current of 200mA, and requires a significant RF exclusion zone.
Group 2 - allows the use of 50 ohm resistorized detonators containing primary explosives, with a minimum non-fire voltage of 25 V AC/DC,
with no single point failure, and still requires an RF exclusion zone, according to the manufacturer's guidelines.
Group 3 - requires the use of detonators that do not contain primary explosives, such as EBW and EFI.
Detonators in this group must have a non-fire voltage of 120V AC/DC, no single point failure and be immune to RF energy.
Drilling systems certified for use in this group do not require an RF exclusion zone.
Electronic Firing Head 'Quick Change Triggers' QCT provides a means of electronic initiation
of a range of detonators in Groups 2 and 3, using wireless control (Pressure, Time, Movement).
Electronic cartridges can be selected to match the characteristics of the detonator.
Fire Sets PX-1 and OM-1 A safe and economical solution for EBW or EFI detonators used in Group 3 operations (without primary explosive).
PX-1 fire sets are activated using industry standard 'trigger' panels that apply DC power through an electrical cable.

Primarily designed for oilfield applications,
the PX-1 generates the high current pulse needed to start the EBW and EFI detonators.
With features that complement the safety features of these detonators,
compact dimensions allowing use in gun systems up to 1-3/8-inch outside diameter,
a low cost that allows it to be disposed of after use and a larger temperature range than any other system on the market, the PX-1 is a flexible tool and affordable solution that will immediately improve your bottom line and reduce security risks. EBW and EFI detonators were originally developed for use in military applications.
They need a very fast high surge current pulse for successful initiation, like the output provided by the Ecosse PX-1.
Unlike conventional “hot wire” and hot resistance detonators which are typically used in oilfield drilling operations
EBW and EFI detonators do not contain sensitive primary explosives such as lead azide.
The biggest advantage of EBW and EFI detonators for oilfield use it is
the fact that they are extremely insensitive to accidental action.
They are effective highly immune to radio frequency (RF) sources and stray voltages found in wells
and offshore platforms and what it means that radio transmissions, electric welding and cathodic protection equipment, they do not need to be turned off during shooting and other wireline blasting operations.

What type to use?
EBWs are generally easier to start than EFIs,
making them more forgiving of imperfect wiring methods
and allows them to be activated over relatively long cable lengths.
EBWs are also less expensive than EFls, they generally cost about the same as conventional “hot wire” detonators.
Oilfield EBWs are available using RDX and CP explosives,
giving them useful temperature ranges of 325°F (163°C) and 400°F (204°C) respectively.
EFs are more difficult to start than EBWs and are typically 2-4 times more expensive.
However, they use high temperature explosives like HNS, meaning they can be used at higher temperatures than EBWs.

Features and Applications
*Start of the EBW and EFI detonator.
*OM-1 is compatible with Spartek Systems' electronic firing head, QCT [API-RP67 certified].
*Secure, cost-effective, premium performance for wired operations.