Increasing Retention Time to Create Larger Water Droplet

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A small increase in water droplet diameter will increase the settling rate since water droplet is squared in the settling equation. The water droplet size will increase within a retention time in the coalescing section, adding a heat input will speedup the process since heat will excites the collisions of small droplet to create larger […]

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Gravity Separation Velocity Calculation

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Gravity Separation Velocity Calculation

The gravity force is commonly used in oil treating equipment to separate the water from the oil in continues phase; the water droplet tends to separate from the oil since it’s heavier than the oil. The separation speed is limited by the drag force caused by the water movement through the oil; the constant velocity […]

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Plate Coalescers to Improve Gravity Separation

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Plate Coalescers to Improve Gravity Separation

We can use plate coalescers to improve gravity separation process, a plate coalescers can be formed as internal plates on skim tanks or vessels. The plate coalescers configurations are: parallel plate interceptors (PPI), corrugated plate interceptors (CPI), or cross-flow separators. All of these configurations depend on gravity separation. When coalescence occurs, the oil droplets will […]

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Foamy Crude in Production Separator

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The non-water substance appearance in crude is the major cause of foam in crude problems. Those substances will not be removed until the crude enters the separator. The separator must be designed properly to have adequate time or coalescing surface to break the foam. Three major problem of foaming crude in separator is as follow: […]

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Oil Treating System Design Consideration

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Crude oil outputted from production separator may contain some water. The water is removed from crude oil through an oil treating process. There are factors to consider designing the oil treating system. Some major factors are: 1. Emulsion tightness. 2. The oil and water specific gravity. 3. Fluid quantity and water ration. 4. Paraffin forming. […]

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Defoaming Plates Separator

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Defoaming Plates Separator

When the fluid release gas bubbles, foam may appears on the surface. To stabilize this foam we may add some chemicals or we can use defoaming separator. Defoaming separator is typically made from a series of inclined parallel plates. The foam will be forced to flow through these plates.

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Phase Separator on Oil and Gas Facilities

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Fluids outputted by the wellhead are made of form many different compounds of hydrocarbon and each compound has its own physical characteristic. The fluids flow from high temperature and high pressure reservoir surface facilities so its temperature and pressure will decrease. Gases from the well stream or evolved in liquid will flow in high speed […]

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Gas Dehydration Methods

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Before gas can be sold the gas need to be dehydrated from its water content. This efforts need to be done to prevents hydrates and water vapor. The water vapor in gas line could create corrosion problems. There are many methods to dry the gas: 1. Cool the gas until it forms the hydrate formation […]

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