Cimarron treaters have always provided an integral and cost effective means of applying heat to assist in the separation of oil and water. Cimarron treaters generate increased temperature in order to reduce the stability of emulsions by increasing droplet diffusion, reducing phase viscosity, and disturbing the interfacial film through changes in surface tension. Our direct-fired heater-treaters use a standard gas-fired burner with the fire tube directly in the product stream.
Cimarron’s oil treater products include a variety of designs. We design and manufacture traditional heater-treaters in both vertical and horizontal styles and customize these to meet the operating requirements of our customers. Cimarron has extensive experience in designing units for colder climates, where interior piping or insulated exterior piping is required. We often provide gas domes in horizontal units to help protect against liquid carryover when the potential for slugging exists. Many of our customers prefer Cimarron treaters since the water or oil/water interface level can be changed using adjustable weirs or adjustable water legs (vertical units). Cimarron regularly manufactures heater treaters in four (4’) to eight (8’) foot diameters and lengths ranging from fifteen (15’) to forty (40’) feet, with maximum allowable working pressures ranging from 75 PSIG to 250 PSIG.
Direct-fired Oil Treaters
In operations where higher inlet pressures exist, Cimarron provides oil treating equipment that combines the internals of an oil treater with an indirect heater. These direct-fired units are used where the wellstream pressure is higher than that recommended for direct-fired heater-treaters and the wellstream requires heating prior to pressure reduction to avoid hydrate and paraffin formation. In our design, the production stream at wellhead pressure enters a coil tube bundle placed in the treater vessel using the heated well fluid as the heat transfer media. The heated production stream is subsequently reduced in pressure and introduced into the vessel for emulsion treating and separation. Gas domes are typically employed in these two or three-phase treaters, allowing for greater liquid/liquid separation capacity, protection from slugging, and sufficient area for vapor separation. Clean liquid/liquid separation is enhanced through the use of separate oil and water weir chambers at the control head of the vessel.
High-Low Pressure Separators
Cimarron also manufactures a full line of “High-Low Pressure Separators”. Commonly used in U.S. shale fields, the high/ low pressure (HLP) separator combines the benefits of a higher-pressure, two-phase separator with a lower-pressure, three-phase treater. In our design, the production stream is heated using an internal coil and the heated well fluid itself as the heat transfer media. The heated production stream then enters a higher-pressure, two-phase vessel (typically 400 to 1,000 PSIG) on top of the unit for the initial gas/liquid separation. The liquids are then introduced into the lower-pressure, heated separator (treater) for liquid/liquid separation. The primary benefit of this Cimarron model is that the off-take gas can be delivered at higher pressure for metering and transmission and avoiding the need for wellsite compression. At the same time, the liquids are treated at a much lower pressure to achieve effective separation and to reduce emissions from the atmospheric storage tanks. Like the direct-fired units, clean liquid/liquid separation is enhanced through the use of separate oil and water weir chambers at the control head of the vessel.