Detonation transmission device (DTD, Booster)
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Detonation transmission devices (DTD) are designed to transfer a detonating impulse between sections in multi-section hollow-carrier single action jet perforation systems during BPO in oil and gas wells. DTD are used in combination with a detonating cord.
| Characteristics | DTD | |
|---|---|---|
| Explosive weight | 0.75 | |
| Outer diameter, mm | 7.2±0.2 | |
| Length, max, mm | 35±0.1 | |
| Maximum air space that guarantees transmission of detonation impulse between two DTDs, mm - axial position | 10 | |
| Maximum air space that guarantees transmission of detonation impulse between two DTDs, mm - axial offset 4 mm | 20 | |
| Inside case diameter, mm | 6.45 | |
| Weight of one DTD, g | 1.8 | |
| Maximum allowable operating temperature at hold time of 2 hours, °С | 195 | |
DTD are the devices that transmit a detonating impulse in multi-section jet perforation systems. The devices are used complete with a detonating cord.
Advantages and technical characteristics of DTD:
- high heat resistance (withstand +195°C for 2 hours);
- compact size and easy-to-handle shape of the body;
- compatibility with all models of BVT perforation systems;
- resistance to mechanical damage and other external impacts