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Fri May 17, 2013 08:25:30 PM
Short Desciption:
The need for multiphase flow measurement in the oil and gas production industry has
been evident for many years. A number of such meters have been developed during
the last few years by research organisations, meter manufacturers, oil & gas
production companies and others.
Summary:
This document is intended to serve as a guide for users and manufacturers of
multiphase flow meters. Its purpose is to provide a common basis for, and assistance
in, the classification of applications and meters, as well as guidance and
recommendations for the use of such meters.
The document may also serve as an introduction to newcomers in the field of
multiphase flow measurement, with definition of terms and description of multiphase
flow in closed conduits being included.
The primary focus is on in-line meters for direct measurement of true multiphase flow
of oil, gas and water. Even if the individual flow rates of each constituent are of
primary interest, fractions of oil, gas and water are sometimes useful as operational
parameters.
Other meters, e.g. separation meters and model/calculation type "meters", do not fall
within the scope of this document, and are only briefly discussed. Other constituents
than oil, gas and water are not dealt with.
The performance of a multiphase meter in terms of accuracy, repeatability, range, etc.
is of great importance, as is the user’s ability to compare different meters in these
respects. One section covers this issue, and proposes standard ways of how
performance can be described.
Related to performance are the testing and qualification of the meters, which are also
covered. Guidance is provided to help optimise the outcome of such activities.
Since meters are in-line, flow rates are measured at process operating conditions.
Conversion of flow rates to standard conditions, which involves multiphase sampling,
knowledge of composition and mass transfer between phases at fluctuating pressures
and temperatures, is only briefly dealt with here.
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"Multiphase Flow Meter Handbook"
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