Email Document Reference

Enter your email address below and the reference for this document will be sent to shortly from webmaster@ceesi.com.

Title: Dynamic Uncertainty Models, Bias And Exposure
Author: Mark Hay
Source: 2005 South East Asia Flow Measurement Conference
Year Published: 2005
Abstract: In any fiscal metering system there is a requirement to demonstrate that uncertainty in measurement is within limits agreed. These may be limits set by any of a number of interested parties such as government bodies, pipeline committees. Typical values are 1% for a gas metering system and 0.25% for a liquid metering system. The uncertainty calculation is generally presented in the form of a document showing the estimated uncertainty in flowrate for a number of scenarios to represent the anticipated production profile. The document is often drawn up by the metering system vendor as part of the system documentation and once approved, seldom referenced or revisited. This paper examines the potential risk when adopting this approach and outlines methods by which exposure to mismeasurement can be significantly reduced by implementing a dynamic uncertainty model.

In order to prevent spam and automated file downloads for documents within the Measurement Library, please follow the instructions below and then you will be able to email a reference to this article.