Reverse Circulation

Brown Bros Drilling have been Reverse Circulation Drilling since the early 1980’s; with the option of three "Factory Built" Reverse Circulation sizes and a range of truck and track mounted drill rigs, you know we can get the job done. Our 4.5” system is designed for deep difficult exploration drilling, the 3.5" system is designed for mid depth difficult access exploration, while our 3” system is designed for shallow difficult/limited access situations where the big rigs cannot get to.

• From vertical to 45 degree angle holes
• Hole depths of up to 350 metres on 4.5” (114mm) Reverse Circulation Down-Hole Hammer
• Hole depths of up to 200 metres on 3.5" (89mm) Reverse Circulation Down-Hole Hammer
• Hole depths of up to 100 metres on 3” (75mm) Reverse Circulation Down-Hole Hammer

Further information on how air core and reverse circulation drilling work and their advantages can be found here.