Abstract: A wet scrubber can be used to capture dust particulates from a bulk powder conveyed into a mixing system. The mixing system can be used to form a treatment fluid for use in an oil and gas operation, such as a cement slurry. The wet scrubber includes a first section having two sets of baffles that create a first and second stage. Air and the dust particulates flow into and through the baffles of the first stage and turbulently mixed with water in the wet scrubber to capture the dust particulates. The air and any remaining dust particulates then flow into and through the baffles of the second stage and turbulently mixed with the water. One or two additional sections, each having baffles, can be included to accommodate varying air flows into the scrubber. The baffles in the various sections can be lower in the water than other sections.

Abstract: A method for integrating a batch cement process with a cuttings reinjection process, the method comprising: equipping a batch cement skid with a particle classifier and a grinding pump, such that the batch cement skid sequentially implements the cuttings reinjection process and the batch cement process is disclosed. An apparatus for performing a batch cement process and a cuttings reinjection process, the apparatus comprising: a first tank and a second tank, a particle classifier having a coarse effluent stream feeding into the first tank and a fine effluent stream feeding into the second tank, and a grinding pump in fluid communication with the first tank and the particle classifier is also disclosed.