Description
The Pyro-Electric Time Delay is an Electronic Time Clock
rated at 300°F. for 200 hours. It is placed between
the Absolute Head and the Gun Assembly. The Tool can be
Pre-set to activate at 7 , 15 or 30 Minutes 1, 2, 4 up
to 8 hours time intervals. This allow the operator time
to achieve needed underbalance condition prior to Perforation.
It is functioned by the output of the percussion initiator
of the Absolute Firing Head. Once activated will function
at the Pre-set time. The circuit close and dump the electric
current to the electric detonator.
Effects of Temperature on Delay
Settings
Low Temp
Ambient - 300°F
| Setting |
Ambient |
200°F |
250°F |
300°F |
| 1 |
7.5 mn |
7.5 mn |
7.4 mn |
6.9 mn |
| 2 |
15 mn |
15 mn |
14.8 mn |
13.9 mn |
| 3 |
30 mn |
30 mn |
29.7 mn |
27.8 mn |
| 4 |
1 hr |
1 hr |
59.4 mn |
55.5 mn |
| 5 |
2 hr |
2 hr |
1 hr 59 mn |
1 hr 51 mn |
| 6 |
4 hr |
4 hr |
3 hr 58 mn |
3 hr 42 mn |
| 7 |
8 hr |
8 hr |
7 hr 55 mn |
7 hr 24 mn |
High Temp
250°F - 392°F
| Setting |
250°F |
300°F |
350°F |
392°F |
| 1 |
7.4 mn |
6.9 mn |
6.3 mn |
5.3 mn |
| 2 |
14.8 mn |
13.9 mn |
12.6 mn |
10.7 mn |
| 3 |
29.7 mn |
27.8 mn |
25.2 mn |
21.3 mn |
| 4 |
59.4 mn |
55.5 mn |
50.4 mn |
42.6 mn |
| 5 |
1 hr 59 mn |
1 hr 51 mn |
1 hr 41 mn |
1 hr 25 mn |
| 6 |
3 hr 58 mn |
3 hr 42 mn |
3 hr 22 mn |
3 hr 50 mn |
| 7 |
7 hr 55 mn |
7 hr 24 mn |
6 hr 43 mn |
7 hr 41 mn |
