Jan 06, 2013
1. ZJ30~ZJ90 RIG
2. Electrical driven drilling rig
3. Mechanical driven drilling rig
4. SCR DC driving system
5. VFD system
Main technical parameters of 5000m Drilling Rigs MODEL:U.S MetZJ50/3150LZJ50/3150LDNominal drilling depth:1150016400ft,35005000m,(4...