A method for removing low gravity solids from an oil-based drilling fluid
includes directing the drilling fluid into a first inlet of a first line
in fluid communication with a centrifuge, injecting steam into the
drilling fluid through a second inlet in the first line, wherein the
second inlet is upstream from the centrifuge, directing the commingled
drilling fluid and steam into the centrifuge, rotating the centrifuge at
a rotational speed sufficient to separate solids from liquids, collecting
solids from a solids discharge, and collecting effluent from an effluent
outlet, wherein the effluent has low gravity solids in an amount less
than 1.5%.