Custody Transfer Meter Selection - More than just mass flow accuracy

11 12, 2015 Spartan Controls

Custody Transfer Infographic

When it comes to liquid custody transfer, it is imperative that measurement technologies are as accurate and reliable as possible. Without the guarantee that meters are measuring with the least amount of uncertainty, operators are faced with the possibility of significant losses that can have substantial effects on profits.

Traditionally, liquid custody transfer measuring methods used linear meters such as turbine or positive displacement meters. Since these meters are prone to high maintenance costs due to mechanical wear, more and more industry experts are shifting towards coriolis technology. With no moving parts, coriolis meters need little maintenance and can provide noteworthy cost savings.

How Does a Coriolis Meter Work?

Coriolis meters do not measure volumetric units directly (as linear meters do), the volume is interpreted based on the mass flow and density measurement that a coriolis meter measures directly.

Coriolis meters are known for having great mass flow accuracy, however density accuracy varies from manufacturer to manufacturer. Industry leading technology developed by Micro Motion is the only coriolis meter that can guarantee the highest density accuracy out of the box. Other coriolis meters on the market strive to provide this level of flow accuracy, but cannot match Micro Motion’s density accuracy of ±0.0002 g/cm^3. Additionally, competing meters require on-site calibration in order to properly operate, the cost and logistics of which can be cumbersome, expensive, and at times overlooked as fine print. Overlooking this calibration can cause increased uncertainty in meters and could cost users a significant amount.

Are You Missing Out On Profits?

The included infographic illustrates how the total cost of uncertainty can add up over the course of a year. Based on $40 p/bbl of oil on a pipeline that transfers only 50,000 bbl/day, using a competitor’s coriolis meter means an uncertainty of $2,436.89 a day and $889,453 a year. If Micro Motion coriolis technology had been utilized in this same application, the level of uncertainty decreases by about 38 per cent to $545,620.25 a year, providing significant savings.

Learn More About Micro Motion Coriolis Technology