The application provides an LH-SBM environment-friendly high-performance synthetic base
drilling fluid system recycling
system and process, and belongs to the technical field of drilling fluids, and solves the problems of
single use function, non-recyclability, difficult treatment, serious
pollution and difficult
discharge of
drilling waste liquid and the like of the existing
drilling fluid. The application comprises the following steps: mixing raw materials to form a synthetic base
drilling fluid system; injecting the high-performance synthetic base drilling
fluid system into a well for drilling work, and obtaining a synthetic base drilling mud; preliminarily separating the drilling mud to obtain drilling cuttings liquid and drilling cuttings, and recycling the drilling cuttings liquid into the drilling
fluid system; sequentially preheating and heating treating the drilling cuttings to obtain
tail gas and
solid phase; cooling treating the
solid phase to obtain clean soil; dust removing and purifying the
tail gas, and then condensing and recycling the
tail gas to obtain synthetic base base fluid and
gas phase, and recycling and utilizing the synthetic base base fluid; purifying the
gas phase through a
sedimentation pool, and then obtaining direct
discharge gas through a
flare or
activated carbon adsorption, and directly discharging the direct
discharge gas into the
atmosphere.