drill rig
noun1
An oil rig.
2
Used other than figuratively or idiomatically: see drill, rig.
- In sandy strata, 7 to 9 inches diameter holes are drilled with a percussion type drill rig.1979, Iqtidar H. Siddiqui, Irrigation canals: planning, design, construction, and maintenance:
- As no standard drill rig for 38-mm holes was available, Atlas Copco developed the Trakker 526, a drill rig for small-hole drilling that was adapted to narrow vein mining2001, William A. Hustrulid, Richard L. Bullock, Underground Mining Methods, page 224: