The flow back lasted for four days, and CETCO Oilfield Services treated all of the return fluids, discharging clean water directly into the Gulf of Mexico. CETCO Oilfield Services received fluids from the structure’s test separator. The fluids were routed into CETCO’s 120-BBL Sparging Separation Tank for initial treatment. Inlet oil and grease concentrations ranged from 225 ppm to 590 ppm. Specialists then pumped the fluids from the separation tank to CETCO’s RFV 2000 filtration skid containing radial flow canisters filled with CETCO Oilfield Services patented CrudeSorb® media.
Static sheen tests were conducted on the water discharged from CETCO’s equipment throughout the project, and the water continuously passed the test. Infrared oil and grease measurements were also performed on the treated water, and all results were well below the discharge criteria. An independent laboratory tested samples of the water discharged to the Gulf of Mexico, and all samples contained oil and grease levels below detectable limits.