Category Archives for Produced Water Treating System

Hydrocyclone Separator

Hydrocyclone separators, sometimes called enhanced gravity separators, use centrifugal force to remove oil droplets from oily water. As shown in Figure 7-16, static hydrocyclone separator consist of the following four sections: a cylindrical swirl chamber, a concentric reducing section, a … Continue reading

06. January 2011 by Jack
Categories: Water Treating Equipment | Tags: , , , | 1 comment

Deck Drainage

Federal regulations and most authorities having jurisdiction require that “free oil” be removed from deck drainage prior to disposal. It is extremely difficult to predict an oil drop size distribution for rainwater or washdown water that is collected in an … Continue reading

06. September 2009 by Jack
Categories: Influent Water Quality | Tags: | Leave a comment

Soluble Oil

In every system substances that show up as “oil” in the laboratory test procedure will be dissolved in the water. This is especially true where samples are acidized for “stabilization” prior to extraction with a solvent. This soluble oil cannot … Continue reading

06. September 2009 by Jack
Categories: Influent Water Quality | Tags: | Leave a comment

Produced Water

The first step in choosing a water treating system is to characterize the influent water streams. It is necessary to know both the oil concentration in this stream and the particle size distribution associated with this concentration. This is best … Continue reading

05. September 2009 by Jack
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Drain System

A drain system that is connected directly to pressure vessels is called a “pressure” or “closed” drain system. A drain system that collects liquids that spill on the ground is an “atmospheric,” “gravity,” or “open” drain. The liquid in a … Continue reading

05. September 2009 by Jack
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Skim Pile

The skim pile is a type of disposal pile. As shown in Figure 7-18, flow through the multiple series of baffle plates creates zones of no flow that reduce the distance a given oil droplet must rise to be separated … Continue reading

05. September 2009 by Jack
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Disposal Piles

Disposal piles are large diameter (24- to 48-inch) open-ended pipes attached to the platform and extending below the surface of the water. Their main uses are to (1) concentrate all platform discharges into one location, (2) provide a conduit protected … Continue reading

05. September 2009 by Jack
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Sizing Dispersed Gas Units

It can be shown mathematically that an efficient design must have a high gas induction rate, a small diameter induced gas bubble, and relatively large mixing zone. The design of the nozzle or rotor, and of the internal baffles, is … Continue reading

05. September 2009 by Jack
Categories: Flotation Units | Tags: , | Leave a comment

Dispersed Gas Units

In dispersed gas units gas bubbles are dispersed in the total stream either by the use of an inductor device or by a vortex set up by mechanical rotors. Figure 7-14 shows a schematic cross section of a unit that … Continue reading

05. September 2009 by Jack
Categories: Flotation Units | Tags: | Leave a comment

Dissolved Gas Units

Dissolved gas designs take a portion of the treated water effluent and saturate the water with natural gas in a contactor. The higher the pressure the more gas can be dissolved in the water. Most units are designed for a … Continue reading

05. September 2009 by Jack
Categories: Flotation Units | Tags: | Leave a comment

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