Drilling Rig Systems
Rig Skills
FEBRUARY 18, 2019
Draw works It have a drum on which drilling line is reel in and out to move travelling block inside mast or derrick for raising and lowering drilling string. How Drilling rig Systems Work-Complete Guide Buy Now Crown Block Crown block is top most part of mast or derrick. It have number of sheaves on it.
52 
Let's personalize your content