A feedback from Indian HDD customer in IOCL project
2018/03/23
The photos and feedbacks were sent from our Indian customer who is working at project site crossing a 550 meters length river, the final hole is 40" , the producing pipeline is 28" oil transmission.
The drilling steps is 9.5" drilled by pilot tricone, then hole opener,14"→20"→27"→34"→40", it only took 60 hours when reaming the 550 meters long
hard rocks expanding from 14" to 20", the customer is satisfied!
Photos at drilling site:
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