Measurement Library

North Sea Flow Measurement Workshop Publications (1997)

Flow Metering Concepts, An Engineering Contractors Experience
Author(s): Lars Brunborg, Dag Daler
Abstract/Introduction:
We will give a brief discussion of an engineering companys experience regarding fiscal measurement systems.
Go to Download Page
Email Reference
Document ID: 8654CD0E

Dry Calibration Of Ultrasonic Gas Flow Meters
Author(s): G. De Boer, J. Lansing
Abstract/Introduction:
At present in most European countries it is customary that turbine meters, or the newer ultrasonic gas flow meters, when used in fiscal metering or custody transfer metering applications, are calibrated in a test facility by comparison to standards or reference devices.
Go to Download Page
Email Reference
Document ID: 9957A771

Performance Testing Of Ultrasonic Flow Meters
Author(s): Terrence A. Grimley
Abstract/Introduction:
This paper presents a portion of the ultrasonic flow meter research results from work sponsored by the Gas Research Institute (GRI) and the U.S. Department of Energy, conducted at the Metering Research Facility (MRF).
Go to Download Page
Email Reference
Document ID: 6124A082

Diagnostic Of Industrial Gas Flows By Ultrtrasonic Tomography
Author(s): Jacques Demolis, Pierre Gajan, Alain Strzelecki
Abstract/Introduction:
To minimise the influence of transversal flows or asymmetry of the axial profile, more and more manufacturers have resorted to ultrasonic multipath flowmeters.
Go to Download Page
Email Reference
Document ID: DA6E9452

Software Testability, Testing An Verification In Fiscal Oil And Gas Flowmetering
Author(s): Kanaga Saba Pathy Mylvaganam
Abstract/Introduction:
Many of the companies in the oil and gas industries have different program modules for including volume, density and temperature measurements to evaluate the amount of oil/gas in the context of fiscal measurements.
Go to Download Page
Email Reference
Document ID: BD7C095C

Recent Developments In The Uncertainty Analysis Of Flow Measurement Processes
Author(s): Jos G. m. Van Der Grinten
Abstract/Introduction:
For the evaluation of uncertainties in flow measurement two different documents are used at present. These are the Guide to the expression of uncertainty in measurement 1 and ISO 5168 2. The Guide represents the present state of the art of uncertainty analysis. ISO 5168 is much older, is still under revision 3 and is familiar to most people in the flow community.
Go to Download Page
Email Reference
Document ID: 75897261

A Practical Example Of Uncertainty Calculations For A Metering Station - Conventional And New Methods
Author(s): . Midttveit, J. Nilsson
Abstract/Introduction:
The principles and results of a conventional uncertainty analysis provided by a major supplier of metering systems, are briefly presented. Temperature, pressure, density and gross observed volume are considered.
Go to Download Page
Email Reference
Document ID: F9023D27

European Calibration Inter-Comparison On Flow Meters - How Accurate Can One Expect To Measure Flow Rates
Author(s): Peter Lau
Abstract/Introduction:
Results of a calibration inter-comparison are reported that were performed on a flow meter transfer standard between nine primary flow laboratories in Western Europe. The purpose is to ensure that the equipment and methods used do not suffer from systematic errors.
Go to Download Page
Email Reference
Document ID: 5BC277B3

Experiences With Ultrasonic Meters At The Gasunie Export Stations
Author(s): Gert Sloet, Gerrit De Nobel
Abstract/Introduction:
Gasunie has equipped a number of its export metering stations with ultrasonic gas flow meters. These ultrasonic flow meters are used as backup meters for the primary meters, which are turbine meters. On-line comparison results with these ultrasonic flow meters and the turbine meters are assessed. Given the results it is concluded that this new type of meter gives good results in the areas of availability and spread of results.
Go to Download Page
Email Reference
Document ID: 68801D9C

On Line- Quality Control Of Ultrasonic Gas Flow Meters
Author(s): R. Sakariassen
Abstract/Introduction:
An ultrasonic gas flow meter (USM) offers a great deal of information about the perfonnance of the meter and the conditions in the gas flow. Some of the information is used by the computer of the meter itself to perform self diagnostics while other part of the available information is not yet fully utilised.
Go to Download Page
Email Reference
Document ID: 4F29D46C

Gas Well Flowline Measurement By Ultrasonic Flow Meter
Author(s): J. B. Agricola
Abstract/Introduction:
In Underground Gas Storage plants the gas in the well flowlines flows bidirectional: from the well in production mode to the well in injection mode. Ultrasonic flow meters (UFM), bidirectional from origin, were therefore considered for this application.
Go to Download Page
Email Reference
Document ID: BEB36CFC

Testing Of Noise Suppression System For Multipath Ultrasonic Gas Flow Meters
Author(s): Bard Dybwad Kristensen, Cecilie Lofsei
Abstract/Introduction:
The use of ultrasonic meters for custody transfer metering is gaining acceptance within the oil companies as well as by the authorities. There is an ongoing effort to improve these meters to make them a competitive alternative to orifice plates and gas turbine meters. Operational experience has shown that ultrasonic meters are sensitive to noise generated by flow control valves. KOS has, in cooperation with CMR, developed an ultrasonic noise suppression system.
Go to Download Page
Email Reference
Document ID: 6786A53D

Liquid Correction Of Venturi Meter Readings In Wet Gas Flow
Author(s): Rick De Leeuw
Abstract/Introduction:
Venturi flow meters can be used to measure the actual gas flow rate in wet gas streams, provided the liquid content is known. An empirical correlation is presented which accurately predicts the effect of the liquid phase on venturi meter readings in wet gas horizontal flow.
Go to Download Page
Email Reference
Document ID: 09195548

Evaluation Of On-Line Chromatograph Performance
Author(s): Christopher J. Cowper, Richard P. Mounce
Abstract/Introduction:
Gas Chromatography (GC) is very widely used for analysis of natural gas, with the most frequent use for the analytical data being the calculation of properties of the gas. Just as the composition data are used to calculate properties, so the uncertainty values associated with the composition data allow calculation of the uncertainty associated with the property.
Go to Download Page
Email Reference
Document ID: B6E14176

Mfi Watercut Meter - A Fiscal Meter
Author(s): Styrk Nordborg, Tone Kristin Borslid
Abstract/Introduction:
Two MFI WaterCut Meters have since January 1996 been under testing at the Tordis oil metering station at Statoils Gullfaks C platform. As a result of these test the Norwegian Petroleum Directorate (NPD) has given temporarily approval for fiscal use on Tordis throughout 1997.
Go to Download Page
Email Reference
Document ID: 0A81123E

Coriolis Meter For Lpg Custody Transfer At Petrobras
Author(s): Virgilio Antonio Rezende, Cathy Apple
Abstract/Introduction:
Testing was conducted at Petrobras to evaluate the suitability of a Coriolis meter to measure the mass of LPG in a custody transfer application.
Go to Download Page
Email Reference
Document ID: 91E455E7

Wet Gas Testing With The V-Cone Flowmeter
Author(s): Stephen A. Ifft
Abstract/Introduction:
This paper discusses a series of tests conducted at the Southwest Research Institute for McCrometer Inc. Southwest Research in San Antonio, Texas has developed a wet gas testing loop using nitrogen gas and water. McCrometer contracted with Southwest Research to conduct a series of tests to evaluate the performance of the V-Cone flowmeter in wet gas applications.
Go to Download Page
Email Reference
Document ID: FE699029

European Intercomparison Of The Calibration Of Gas Density Meter And An Introduction To A Guideline To The Determination Of Gas Density
Author(s): Marianne Tambo, Tove Sogaard
Abstract/Introduction:
For more than 10 years Nordic countries have been producing, selling and/or buying natural gas. One of the major issues has been how to determine the amount of gas. Several of the methods involve the determination of gas density.
Go to Download Page
Email Reference
Document ID: 9717F6CC

The Determination Of Gas Density - Part 3 A Guideline To The Determination Of Gas Density
Author(s): Marianne Tambo, Tove Sogaard
Abstract/Introduction:
Nordtest was founded in 1973 by the Nordic Council of Ministers and since then Nordtest has been an active member of the Internationa testing community. From the beginning Nordtesfs activities have been focused upon development of Nordic test methods and Nordic cooperation concerning testing.
Go to Download Page
Email Reference
Document ID: 22291426

Technical Reports From The Strategy Group On Quality And Metrology
Abstract/Introduction:
[Abstract Not Available]
Go to Download Page
Email Reference
Document ID: EC20CC58

Disturbed Flow Profiles And Their Effect On Gas Meter Begaviour - Systematic Investigations And Practical Conclusions
Author(s): Gudrun Wendt, Bodo Mickan, Rainer Kramer, Dietrich Dopheide
Abstract/Introduction:
Within the scope of an extensive PTB research project a special facility was built which allows the investigation of flow profiles downstream of several pipe geometries and flow straighteners.
Go to Download Page
Email Reference
Document ID: 7FF383C6

Quality Assessment Of Gas Metering Stations By Means Of A Portable And Retrachtable Inspection Probe
Author(s): S. Larsen, J. Bosio, A.S. Sivertsen
Abstract/Introduction:
The compliance of gas metering stations to design specifications has in general been limited to the comparison of as-built with the recommendations provided by accepted international standards, national regulations or recognised databases.
Go to Download Page
Email Reference
Document ID: F6F7E5E5

Computation Of Flow Through Venturi Meters
Author(s): Jane A. Sattery, Michael J. Reader-Harris
Abstract/Introduction:
The computational fluid dynamics (CFD) work on Venturi meters reported in this paper was part of a large project for Shell Exploration and Production to investigate the application of Venturi meters to gas flow measurement.
Go to Download Page
Email Reference
Document ID: 9E357F4A

Wet Gas Sampling
Author(s): Thomas F. Welker
Abstract/Introduction:
The quality of gas has changed drastically in the past few years. Most gas is wet with hydrocarbons, water, and heavier contaminants that tend to condense if not handled properly. If a gas stream is contaminated with condensables, the sampling of that stream must be done in a manner that will ensure all of the components in the stream are introduced into the sample container as the composite.
Go to Download Page
Email Reference
Document ID: CB807A7B

Master Meter Method
Author(s): Philippe Dupuy
Abstract/Introduction:
This paper was presented at the NEL, in London, on the dec, 11th, 1996. It reports the experience of FAURE HERMAN with master-meter prover and centralised calibration method, based on the use of the true helical bladed turbine meter, HELIFLU TZN. This practice was originated on french pipelines networks, for products and crude oil, in the sixties. Master Meter Method. FAURE HERMAN
Go to Download Page
Email Reference
Document ID: 818915DF

Testresults Krohne 8 Ultrasonic Flowmeter
Author(s): Andre H. Boer, Wim Volmer
Abstract/Introduction:
A new development in the field of ultrasonic liquid flowmeasurements has resulted achieved with the multichannel liquid ultrasonic flowmeter, the first for use in maintenance-free custody transfer applications.
Go to Download Page
Email Reference
Document ID: DCDACA9D

Factors Affecting The Perfomance Of Ultrasonic Flowmeters
Author(s): G.J. Brown
Abstract/Introduction:
A programme of work is currently underway at NEL to investigate and characterise the performance of liquid ultrasonic meters over a wide range of conditions.
Go to Download Page
Email Reference
Document ID: 56E4DDF3


Copyright © 2017