Perforating Guns Accessories
Using a complete set of machining tools, JAS covers the whole components of perforating guns.
- HSD Guns Outer Tubes & Inner Tubes.
- Firing Head, Cable Heads, Spacer, Tandem Sub, Top Sub & Bottom Nose.
- Strip Gun Carriers and Phase Gun Carriers, Carrier Connector, Weight Bar.
Firing Heads
- Firing heads are used to detonate perforating charges conveyed by tubing, drill pipe, coiled tubing or wireline. A mechanical firing head consists of a percussion detonator that is struck by a firing pin. An electronic firing head uses electrical power to initiate an electric detonator.
- Here in Jabal Al Shams, we are in position to design and produce different types and all types are available upon request.
Other Related Product
- Phase Firing Head, Used for Phase Gun Carrier
- Zero Phase Firing Head, Used for Strip Gun Carrier
- Electrical Firing Head, Used for HSD Guns (Wireline Conveyed)
- Percussion Firing heads, Used for TCP Guns (Tubing Conveyed Perforation)
TOP Sub
Top Sub is used for connecting the firing head or quick change to the perforating gun. Top Sub is used while the system conveyed by Wireline and connect Blast Joint to Quick Change Assembly for mechanical & electrical connection. Specific design for releasing pressure and safer offloading is also available. This component is designed and manufactured based on high pressure and high temperature operational conditions and is capable to be used several times.
The product also has strong applicability and reliability. It can be used in various oil well environments and can adapt to various perforation requirements. Moreover, due to its precise design and reliable performance, it can greatly reduce the failure rate of perforation and the possibility of problems, thus ensuring the normal production of oil wells.
| Sub O.D. | Upper Thread Type | Lower Thread Type | Pressure Rating | Approx. Weight |
| 2″ | 1-3/16-12STUB ACME-2G | 1-11/16-8 STUB ACME-2G | 25000 psi | 3.3lb [1.5kg] |
| 2-7/8″ | 2-3/4″-6Acme-2G | 2-3/8″-6Acme-2G | 12.1lb [5.5kg] | |
| 3-1/8″ | 2-3/4″-6Acme-2G | 13.9lb [6.3kg] | ||
| 3-3/8″ | 2-13/16″-6Acme-2G | 17.6lb [6.5kg] | ||
| 4-1/2″ | 3-15/16″-6Acme-2G | 26.4lb [12kg] | ||
| 7″ | 6-1/4″-6Acme-2G | 59.4lb [27kg] |
Tandem Sub
Tandem Sub is used to connect two Hollow Carrier Perforating Guns or other components to the Hollow Carrier Gun. Specific design for releasing pressure and safer offloading is also available. This component is designed and manufactured based on high pressure and high temperature operational conditions and is capable to be used several times.
| Sub O.D. | Upper/Lower Thread Type | Pressure Rating | Approx. Weight |
| 2″ | 1-11/16-8 STUB ACME-2G | 25000 psi | 3.3lb [1.5kg] |
| 2-7/8″ | 2-3/8″-6Acme-2G | 9.9lb [4.5kg] | |
| 3-1/8″ | 2-3/4″-6Acme-2G | 14.3lb [6.5kg] | |
| 3-3/8″ | 2-13/16″-6Acme-2G | 17.6lb [8kg] | |
| 4-1/2″ | 3-15/16″-6Acme-2G | 30.9lb [14kg] | |
| 7″ | 6-1/4″-6Acme-2G | 77.2lb [35kg] |
Bottom Sub
Bottom Sub is used as the lowest component in Hollow Carrier Perforating System Assembly. This component is designed and manufactured based on high pressure and high temperature operational conditions and is capable to be used several times.
| Sub O.D. | Thread Type | Pressure Rating | Approx. Weight |
| 2″ | 1-11/16-8 STUB ACME-2G | 25000 psi | 2.2lb [1kg] |
| 2-7/8″ | 2-3/8″-6Acme-2G | 6.6b [3kg] | |
| 3-1/8″ | 2-3/4″-6Acme-2G | 11lb [5kg] | |
| 3-3/8″ | 2-13/16″-6Acme-2G | 14.3lb [6.5kg] | |
| 4-1/2″ | 3-15/16″-6Acme-2G | 26.5lb [12kg] | |
| 7″ | 6-1/4″-6Acme-2G | 39.7lb [18kg] |