Slop Water is produced on offshore oil and gas rigs when wash water is used for cleaning drill pipes, drill deck, mud tanks, etc. That water is contaminated with hydrocarbons, chemicals, and other waste products and it can also contain other substances such as corrosive salts, drilling muds including chemicals in suspension and in solution, salt-water, rain-water, formation-water, it can also contain silt and sand particles, floating solids, LCM materials, and other large particles.
Traditionally the slop is collected and shipped onshore for processing and safe disposal
Treating the slop water offshore for reuse or for disposal saves time and resources
Here are 2 methods of offshore slop water treatment: