B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 21/02 (2006.01) E21B 21/00 (2006.01) E21B 21/06 (2006.01)
Patent
CA 2596413
A method and apparatus for recycling drilling fluids used in the drilling of wells is provided. The apparatus can comprise a tank having a plurality of compartments. Drilling fluid containing solids pumped into a receiving compartment of the tank is directed towards a flow-reversing barrier to cause heavier solids to settle to the bottom of the tank. Fluid filling the receiving compartment flows downstream into an adjacent compartment by passing through a flow-restricting baffle to cause more solids to settle. As fluid flows from compartment to compartment, it passes through successive flow-restricting baffles to cause further solids to settle. Once fluid reaches a collecting compartment, the fluid can be used again in drilling operations. A conveyor extending along the bottom of the tank moves settled solids out through an outlet in the collecting compartment. The settled solids can then be passed through a centrifuge to recover residual fluids.
Harding Darin Merle
Haugen J. Jay
LandOfFree
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