Configured either as a vertical or horizontal separator to separate liquids/gas (2-Phase operation) and to separate liquids/liquids/gas (3-phase operation). The term separator is broad and can include a wide range of design types and applications.
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Accessories shipped loose for customer installation, or Cimarron can also provide fully functional skid packaging with instruments, controls, and piping in accordance with customer requirements, allowing the customer flexibility in transporting and installation.
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Vertical separators are generally suited for low to intermediate gas-oil ratios, capable of handling and smoothing out inconsistent larger slugs, better for space limitations, and more capable when sand or sediment is present. Horizontal separators are generally suited for high gas-oil ratios, larger volumes with constant flow, foaming crudes, and 3-phase separation. A typical horizontal 2-Phase separator will have inlet flow stream impinge upon an inlet device (most common would be a plate type inlet diverter) as it enters the vessel, which helps separate the bulk of the gas from the liquid. In certain applications, more expensive and efficient inlet devices such as vanes or cyclonic devices are utilized, particularly in a 3-Phase operation. The gas will move towards the opposite end of vessel and travel through the mist extractor (wire mesh pad or vane pack), allowing for liquid droplets to coalesce on the mesh or vane and drop back down to the liquid section of the vessel. Gas will then exit the vessel via the gas outlet nozzle and is controlled by a back pressure regulator valve to help maintain constant pressure in the vessel. The free liquids that impinge upon the inlet diverter will drop down to the liquid section and exit the vessel through the liquid out nozzle controlled by a liquid level controller that controls the control valve. In a 3-Phase operation, the oil and water stream impinges upon the diverter will begin the separation process as it moves on the lower portion of the vessel towards the opposite end of the vessel. Depending upon the retention time and their individual characteristics, will separate into two different phases. At this point, in a horizontal vessel the oil will spill over the oil weir (common design) and exit the vessel through the oil outlet nozzle controlled by the oil liquid level control that controls the oil control valve. In a vertical vessel, residence time allows the oil to separate from the water, and then will exit the vessel through the oil outlet nozzle controlled by the oil liquid level control that controls the oil control valve. In a horizontal vessel,the water will exit the vessel through the water outlet nozzle (upstream of the oil weir) that is controlled by the water liquid level control that controls the water control valve. The 2 and 3-Phase vertical separators may have different types of internal designs depending on the requirements and available process data. Specifically, horizontal 3-Phase separators may include special internals such as plate packs, perforated baffles, and/or sand jet systems. 2-Phase vertical separators are commonly utilized as gas scrubbers, where there are minimal liquids to consider, especially in Glycol Dehydration and compressor station applications.
Design assumptions/limits sizing criteria:
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