From Surface Production Operations: Design of Oil Handling Systems and Facilities, Volume One, Third Edition


The liquids that are separated from the gas stream during initial separation may be flowed directly to a tank or may be "stabilized" in some fashion. As was discussed in Chapter 2, these liquids contain a large percentage of methane and ethane, which will flash to gas in the tank. This lowers the partial pressure of all other components in the tank and increases their tendency to flash to vapors. Stabilization is the process of increasing the amount of intermediate (C 3 to C 5) and heavy (C 6+) components in the liquid phase. In an oil field this process is called crude stabilization and in a gas field it is called condensate stabilization.

In almost all cases the molecules have a higher value as liquid than as a gas. Crude oil streams typically contain a low percentage of intermediate components. Thus, it is not normally economically attractive to consider other alternatives to multistage separation to stabilize the crude. In addition, the requirement to treat the oil at high temperature is more important than stabilizing the liquid and may require the flashing of both intermediate and heavy components to the gas stream.

Gas condensate, on the other hand, may contain a relatively high percentage of intermediate components. Thus, some sort of condensate stabilization should be considered for each gas well production facility.

The most common method used to remove the light components from hydrocarbon liquids before the liquid enters a stock tank or a pipeline is...

Products & Services
Air Receivers

Air receivers serve as buffers between a compressor and the consumption mechanism of a compressed air system.

Petroleum and Mineral Oil Products
Petroleum products and mineral oil products include substances such as fluids and greases.
Combustion Analyzers
Combustion analyzers and flue gas analyzers measure the gas content of emissions in order to monitor the combustion efficiency of fuel-burning equipment.
Condensate Pumps
Condensate pumps are used to collect and transport condensate back into a steam system for reheating and reuse, or to remove unwanted condensate from an HVAC or appliance collection pan.
Tank Cleaning Machines
Tank cleaning machines wash out the internal surfaces of a storage, marine or process tanks using rotary spray heads, jet heads, static spray balls, or clean-in-place systems

Topics of Interest

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