6:39

NOV Washpipe System training video

7:03

Top Drive - Drilling Rig Services and maintenance - Petroleum sector services

21:52

Drawworks Fundamentals #Rig_Inspection_Workshop

12:41

Well Control

4:24

Drilling Simulator Controls - Top Drive

18:27

23- (L- Wait & Weight Method) شرح

9:50

Portable Top Drive ACME

21:55

What is a Drawworks Draw works, were is it used for in the Derrick, Drawworks in oil and gas means