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EXPLORATION & WATER WELL DRILLING: FLOODED REVERSE CIRCULATION DRILLING
The Flooded Reverse Circulation method is employed in drilling large diameter wells in unconsolidated formations.
The reverse flow of fluid/cuttings up through the inner diameter of the drill pipe is created by a suction pump or induced by an airline that is submerged inside the drill pipe that raises the water column. Water from a supply pit near the rig circulates through a trench to the open drilled hole. This water serves to raise the water level in the drill hole to pit level so that hydrostatic pressure is applied against the wall of the open hole to prevent caving. FLOODED REVERSE CIRCULATION STRENGTHS + Deep large diameter boreholes possible + Can drill most geological formations + Less expensive than conventional rotary + Reduces borehole wall cake + Geophysical logging easily completed + More efficient wells + Low discharge of water during drilling
SOLUTIONS + Production water wells + Monitoring wells + Dewatering wells + Unconsolidated formations + Minimal disturbance INDUSTRIES + Mining + Environmental + Municipalities