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A sand separator is a device that separates sand or other solids from water. [1] [2] One version of sand separator utilizes centrifugal force to separate sand or other heavy particles out of the water. The separated material drops down into a tank or reservoir where it can be removed later or in the case of in-well separators, the separated ...
Liquids thus recovered require stabilization to prevent excessive evaporation in the storage tanks. Metering separator The function of separating well fluids into oil, gas, and water and metering the liquids can be accomplished in one vessel. These vessels are commonly referred to as metering separators and are available for two-phase and three ...
A separation process unit such as a coalescer is often used to physically trigger a separation of the water and the oils. [19] For the treatment of potable water the overflow from the lamella clarifier will require further treatment to remove organic molecules as well as disinfection to remove bacteria. It will also be passed through a series ...
Sand filters become clogged with floc or bioclogged after a period in use. Slow sand filters are then scraped (see above) while rapid sand filters are backwashed or pressure washed to remove the floc. This backwash water is run into settling tanks so that the floc can settle out and it is then disposed of as waste material.
Each separator technology will have its own performance curve outlining optimum performance based on oil droplet size. the most common separators are gravity tanks or pits, API oil-water separators or plate packs, chemical treatment via dissolved air flotations, centrifuges, media filters and hydrocyclones.
The tank is emptied periodically by road tanker and transferred to an oil refinery. For larger production rates a rail tanker transfer facility may be appropriate. [3] For larger fields a full three-phase processing facility is required. Three-phase separators separate the well fluids into its three constituent phases: oil, gas and produced water.