Treatment plants

As described before crude oil is a mixture of gas, water, oil, emulsion and several other impurities.  In order to meet the requirement for export or for selling, the crude has to be processed with various methods. After the wells the crude is pumped to centralized plants, where there is a dedicated process to fulfill each one typical task. 

The major treatments are:

  • Starting with the so called gathering station. Where the oil from different wells is collected, and either the first process steps are taking place or it is forwarded from the gathering station to the separation plant.
  • In the separation plant, first the gas in the crude is taken out. For this either 2 plants are required or this happens in one plant in so called 3-phase separators. Here in one process, the gas, the oil and the water are separated, this process is a continuous process, where the crude is constant flowing into the separator and the separated parts are constant flowing out.
  • If there is no gas in the oil, or the gas is already separated further upstream, there are used so called 2-phase separators, which are continuous processes, using the same design as a 3-phase separator, but without the gas facilities.
  • In older plants or older designs so called static separators, a row of big tanks, are used. This is a batch wise separation. The crude coming from the wells is filled in a tank; time and gravity are used to separate the lighter oil from the heavier water.
  • If the separators work very well, there is after these no or only very little emulsion left. But in most cases the emulsion has to be treated separate in an Emulsion Treatment Plant (ETP). In this process the emulsion is split by heat and chemicals into oil and water.
  • If there is salt solved in the oil the next process is the so called desalter, where this salts are removed from the oil.
  • The water out of all the different separation plants finally ends in the effluent treatment plant (ETP). Here the last traces of oil are removed from the water, and the water is brought in a condition to fulfill the requirements prior dumping.
  • After this separation processes the oil might be processed furthermore if required.

Merus improves all the steps of this separations

In each of these process steps Merus Rings improve the separation and help to get cleaner oil, cleaner water, less emulsion, faster through put, less need of chemicals.

Merus is able to save a lot of operating costs.

Speeding up the separation and improving all the related processes, has a direct impact on the costs. The calculations of the savings are mostly done by calculating the savings in service and chemicals. The fact that bottle necks in these processes are improved as well increases often the capacity of the whole plant. To calculate these improvements is very difficult, so it has never been done until today.
The used chemicals in these processes have often the biggest share in the operation cost. To improve the efficiency of the chemicals and so bring down the used amount, easy bring down these costs by 50%.  

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