Abstract: A method of determining a particle size distribution in a wellbore fluid including collecting a volume of mud from a vibratory separator, sampling a volume of the collected mud, and testing the volume of collected mud with a test kit to determine the concentration of a sized additive in the mud is disclosed. A system for determining particle size distribution of a fluid, the system including a vibratory separator, a meter configured to receive a separated material from the vibratory separator, a counter configured to count the number of loads collected by the meter, a test kit including a sieve and a measuring tube, and a centrifuged configured to receive the measuring tube is also disclosed.

Abstract: A process for the recovery of drilling fluid additives, including industrial carbon, calcium carbonate, natural and synthetic fibers, and other materials from a mixture. The mixture may include drilling fluids, drilled solids, and drilling fluid additives from a mud system. The process may include: separating at least a portion of the drilled solids from the mixture to form a first effluent and a drilled solids fraction; separating at least a portion of the drilling fluid additives from the first effluent to form a second effluent and a recovered additives fraction; and recycling at least a portion of the recovered additives fraction to the mud system. The drilling fluid additives may have a specific gravity greater than 1.4, and may include particles having an average size greater than 2 microns.

Abstract: A process for the recovery of industrial carbon material from a mixture. The mixture may include drilling fluids, drilled solids, and industrial carbon from a mud system. The process may include: separating at least a portion of the drilled solids from the mixture to form a first effluent and a drilled solids fraction; separating at least a portion of the industrial carbon from the first effluent to form a second effluent and a recovered industrial carbon fraction; and recycling at least a portion of the recovered industrial carbon to the mud system.

Abstract: A process for the recovery of drilling fluid additives, including industrial carbon, calcium carbonate, natural and synthetic fibers, and other materials from a mixture. The mixture may include drilling fluids, drilled solids, and drilling fluid additives from a mud system. The process may include: separating at least a portion of the drilled solids from the mixture to form a first effluent and a drilled solids fraction; separating at least a portion of the drilling fluid additives from the first effluent to form a second effluent and a recovered additives fraction; and recycling at least a portion of the recovered additives fraction to the mud system. The drilling fluid additives may have a specific gravity greater than 1.4, and may include particles having an average size greater than 2 microns.

Abstract: A process for the recovery of industrial carbon material from a mixture. The mixture may include drilling fluids, drilled solids, and industrial carbon from a mud system. The process may include: separating at least a portion of the drilled solids from the mixture to form a first effluent and a drilled solids fraction; separating at least a portion of the industrial carbon from the first effluent to form a second effluent and a recovered industrial carbon fraction; and recycling at least a portion of the recovered industrial carbon to the mud system.