Improving the negative effects of the pour point

The pour point of a liquid is the lowest possible temperature at which the liquid is pump able or will flow. Each quality of crude has its own pour point, which is depending on a lot of parameters. Once the crude reaches a temperature below its pour point it cant be pumped or will not flow anymore. 
In order to avoid the crude reaches temperature below its pour point only two possibilities are available. Either the crude is heated to a temperature, which makes sure on its way of transport the crude will be not below its pour point, or the other way is to add very expensive chemicals called PPD (Pour Point Depressant). Unfortunately even with this methods it happens now and than that the crude reach such a temperature and than the oil stops to flow.  This happens more often offshore, if the temperature of the sea is below the pour point. or in the colder seasons. Under normal condition when the crude is flowing normal no need to worry, the time the crude needs to pass the colder environment underneath the sea is to short to cool down the crude under its pour point. But once the crude isn't flowing anymore, the risc that is get stuck is rather high. In such cases only a very expensive treatment with chemicals is possible to make the pipe line again free of stuck crude, and production can continue.

Merus reduce the negative effects of the pour point

Merus has proofed in the field its ability to influence this point of stocking, and to improve the efficiency of the used chemicals.
How this is happening is difficult to explain, but all the other effects, Merus has on the waxing and the viscosity, are playing in to this as well. 
We can not tell to what degree Merus is able to decrease the Pour Point, or better said how much Merus is improving the ability of the crude to stand temperatures below its pour point.
To clean a pipeline which is blocked by stuck oil will cost easily several Million Dollars, depending on the size and the length of the pipeline. So nobody is willing to out test the limits of Merus, because the cost and the problems caused by a blocked pipe are too high.

Turning off heaters or reduce the added chemicals can save a lot of costs.

Merus has equipped flow lines of several kilometers length, whereas before there was the need of heating at 3 different points of the pipeline. After installing Merus, there was no need of heating these pipelines anymore, the crude was still flowing even if the environment temperature came far below the critical point known from before. But there are no monitoring data about the crude temperature itself available, so we cant tell how much below  the Pour Point the oil was still flowing. But there were indications of around 10 to 15%, with this type of crude. The efficiency of the PPD was increased by app. 30%, so the pipeline run stable with 30% less chemicals added.


 

 

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