Trunk and Flow Lines

Trunk and flow lines are just pipes connecting the wells with the treatment plants. A flow line is called the line from the well itself, to either a plant or a gathering station, where as the trunk-lines are the bigger lines, which often carry the production of a lot of wells of one field.
Depending on the characteristic of the crude, the problems faced in these lines are various, in detail:

Seldom have you found only one of these problems, but a combination out of 2 or 3 of them. All these problems are addressed in detail each at a separate page.

There is another group of lines; these are just called pipe lines. Here treated crude is transported very often over long distances. These pipe lines are very big lines and reach often diameters of 60 inches and more. Due to the fact the oil which is transported through these is already purified not so much problems arise, as seen in trunk or flow lines.

All these lines have in common, there is corrosion from outside. This type of corrosion Merus is not able to influence or treat. Either special paints or cathodic protection is used in order to control or minimize the corrosion from outside.
In one oilfield there are several hundred or thousand of pipes needed, with a total length of all over several 1000km.  To service this pipeline is a big task, needs very good planning and monitoring.  The biggest problems are leaking of such lines.  If there is pitting and only a small hole occurs, there is constant oil coming from the pipeline polluting either the ground or the sea.  If only little amounts of the transported through a line are leaking, it is technically next to impossible to recognize there is a problem on such a line.
So the only chance to find such small leaks is regular inspection, by driving along the pipelines and check visual for spots of crude. Also Sub sea lines are regular inspected by divers. All this effort is required, because of corrosion and possible leaks caused by this corrosion.

Merus fights all this problems with one solution

Installing a Merus ring at the start of such a line, is addressing all the different problems happening inside a pipe line, with one single solution. Installing only one Merus Ring will be under good conditions, onshore good enough for app 10 to 15 km pipe length. Offshore where there is no or far less external disturbance (electrical fields) one Merus Ring installed before the pipeline enters the sea will be good for about 30 to 50km. If the length of the pipe line is longer there is installed just every 10 to 15 km another Merus Ring. Offshore this is not so easily possible; therefore two or even three rings in a row are installed at the beginning of the line.

Until today all our customers have only checked one or two problems at the same time, these which are the most pressing for them. Looking on all the possible positive effects haven't been done until now. One reason, there are not required monitoring equipments installed at these lines. But so far all the single most pressing problems addressed by Merus Rings in various projects have been improved.

Merus is able to save a lot of costs and improve the safety of the operation

Each single problem solved by Merus has given the customer savings in the cost of operation. If it be the reduction of the corrosion, and the resulting longer lifetime of the pipeline, or less frequent pigging, or no problem with pour point, or even less emulsion. If all these single improvements are brought together a high amount of money can be saved. 

It is planned to do studies together with customers, to monitor and evaluate all the positive effects of Merus on a pipe line. Only than it is possible to tell about the overall possible savings, the improvement of the safety of the lines and the benefits for the environment, due to less pollution.

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