bailer drilling
1Drilling rig — For a detailed diagram of a Petroleum drilling rig, see List of components of oil drilling rigs. Drilling rig preparing rock blasting …
2sand line — noun : the rope attached to the bailer in well drilling …
1Drilling rig — For a detailed diagram of a Petroleum drilling rig, see List of components of oil drilling rigs. Drilling rig preparing rock blasting …
2sand line — noun : the rope attached to the bailer in well drilling …