Download or read book Multiphase Flow Measurement in the Slug Regime Using Ultrasonic Measurement Techniques and Slug Closure Model written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Multiphase flow in the oil and gas industry covers a wide range of flows. Thus, over the last decade, the investigation, development and use of multiphase flow metering system have been a major focus for the industry worldwide. However, these meters do not perform well in slug flow conditions. The present work involves experimental investigations of multiphase flow measurement under slug flow conditions. A two-phase gas/liquid facility was designed and constructed at Cranfield University. It consisted of a 0.05 m diameter 25 m long horizontal pipeline with the necessary instrumentation. An ultrasonic multiphase metering concept has been proposed and investigated. The concept was based on the combination of non-invasive and non-intrusive ultrasonic sensors and a slug closure model. The slug closure model was based on the "slug unit" model to infer the gas and liquid phase volumetric flowrates. The slug characteristics obtained by non-invasive and non-intrusive ultrasonic techniques were inputs to slug closure model which calculates the factors KI (Liquid), K2 (Liquid), K3 (Gas) and K4 (Gas). These factors are function of the slip ratio in the slug body, flow profile (CO), drift velocity (Vd), liquid holdup and gas void fraction in slug body, slug length, film length, and the total length of the slug unit. Based on ultrasonic sensor measurements, the slug translational velocity was estimated and the slug closure model then calculates the gas and liquid phase volumetric flowrates. Air water slug flow data were gathered and processed for a range of superficial velocities VSL=0.3 to 1.03 ms'1 and VsG=0.6 to 3.01 ms'1. The overall goal of a 5% relative error metering for both phases was not achieved for the conditions tested. The liquid phase percentage errors were from -63.6% to 45.4% while the gas phase percentage errors were from 42% to -14.6%. Key words: slug flow, slug characteristics, slug closure model, non-invasive ultrasonic, non-intrusive ultrasonic, clamp-on tr.
Download or read book Multiphase Flow Measurement in the Slug Regime Using Ultrasonic Measurement Techniques and Slug Closure Model written by Salem Al-lababidi and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Multiphase flow in the oil and gas industry covers a wide range of flows. Thus, over thelast decade, the investigation, development and use of multiphase flow metering systemhave been a major focus for the industry worldwide. However, these meters do notperform well in slug flow conditions. The present work involves experimental investigations of multiphase flow measurementunder slug flow conditions. A two-phase gas/liquid facility was designed andconstructed at Cranfield University. It consisted of a 0.05 m diameter 25 m longhorizontal pipeline with the necessary instrumentation. An ultrasonic multiphase metering concept has been proposed and investigated. Theconcept was based on the combination of non-invasive and non-intrusive ultrasonicsensors and a slug closure model. The slug closure model was based on the "slug unit"model to infer the gas and liquid phase volumetric flowrates. The slug characteristics obtained by non-invasive and non-intrusive ultrasonictechniques were inputs to slug closure model which calculates the factors KI(Liquid), K2(Liquid), K3(Gas) and K4(Gas). These factors are function of the slip ratio in the slug body, flow profile (CO), drift velocity (Vd), liquid holdup and gas void fraction in slug body, slug length, film length, and the total length of the slug unit. Based on ultrasonic sensormeasurements, the slug translational velocity was estimated and the slug closure modelthen calculates the gas and liquid phase volumetric flowrates. Air water slug flow data were gathered and processed for a range of superficialvelocities VSL=0.3 to 1.03 ms 1 and VsG=0.6 to 3.01 ms 1. The overall goal of a 5%relative error metering for both phases was not achieved for the conditions tested. Theliquid phase percentage errors were from-63.6% to 45.4% while the gas phasepercentage errors were from 42% to -14.6%. Key words: slug flow, slug characteristics, slug closure model, non-invasive ultrasonic, non-intrusive ultrasonic, clamp-on transit time ultrasonic flowmeter.
Download or read book An Experimental Study of Vertically Upward Air water Two phase Slug Flow Using Hot film Anemometry written by Guanjun Wang and published by . This book was released on 2001 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Multiphase Flow Measurement and Metering Electric Probes Two Phase Measurement System Development Slug Flow written by Salah AlMuhaish and published by . This book was released on 2019 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Two phase Slug Flow Measurement Using Ultrasonic Techniques in Combination with T Y Junctions written by K. M. Khalifa and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Multiphase Flow Metering written by Gioia Falcone and published by Elsevier. This book was released on 2009-11-16 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the last two decades the development, evaluation and use of MFM systems has been a major focus for the Oil & Gas industry worldwide. Since the early 1990's, when the first commercial meters started to appear, there have been around 2,000 field applications of MFM for field allocation, production optimisation and well testing. So far, many alternative metering systems have been developed, but none of them can be referred to as generally applicable or universally accurate. Both established and novel technologies suitable to measure the flow rates of gas, oil and water in a three-phase flow are reviewed and assessed within this book. Those technologies already implemented in the various commercial meters are evaluated in terms of operational and economical advantages or shortcomings from an operator point of view. The lessons learned about the practical reliability, accuracy and use of the available technology is discussed. The book suggests where the research to develop the next generation of MFM devices will be focused in order to meet the as yet unsolved problems. The book provides a critical and independent review of the current status and future trends of MFM, supported by the authors’ strong background on multiphase flow and by practical examples. These are based on the authors’ direct experience on MFM, gained over many years of research in connection with both operators and service companies. As there are currently no books on the subject of Multiphase Flow Metering for the Oil & Gas industry, this book will fill in the gap and provide a theoretical and practical reference for professionals, academics, and students. * Written by leading scholars and industry experts of international standing* Includes strong coverage of the theoretical background, yet also provides practical examples and current developments* Provides practical reference for professionals, students and academics
Download or read book Index to Theses with Abstracts Accepted for Higher Degrees by the Universities of Great Britain and Ireland and the Council for National Academic Awards written by and published by . This book was released on 2008 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fundamentals of Multiphase Flow written by Christopher E. Brennen and published by Cambridge University Press. This book was released on 2005-04-18 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: Publisher Description
Download or read book Multiphase Flow Measurements Using Ultrasound written by and published by . This book was released on 1999 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ultrasonic Rate Measurement of Multiphase Flow written by Stanford University. Petroleum Research Institute and published by . This book was released on 1993 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Slug Velocity Measurement and Flow Regime Recognition Using Acoustic Emission Technology written by Muammer Ali Ahmed Alssayh and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Characterization of Two phase Flow Slug Frequency and Flow Regimes Using Wavelet Analysis written by Munzarin Morshed and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The characteristics of multiphase fluid flow in pipes are useful to understand fluid dynamics encountered in the oil and gas, chemical and production industries. During the transport of different types of fluid, understanding the hydrodynamic behavior inside the pipe network is important for flow assurance. The presence of relative agitation in the interfaces and inconstant interactions among distinct phases, multiphase flow becomes a complex conveyance phenomenality in contrast to single-phase flow. This study is focused on gas/Newtonian and gas/non-Newtonian two-phase horizontal flow structure. This investigation ranges from analyzing volume fraction, pressure drop, flow regime identification, flow structure analysis, etc. This involves recognition of the two-phase flow regimes for this flow loop and validates it with the existing flow maps in the literature. In another study, slug frequency has been examined and compared with air/Newtonian and air/non-Newtonian fluid in the flow loop. Finally, wavelet packet transformation is used to decomposition pressure signals for different flow pattern.
Download or read book A selection of new developments in multiphase flow measurement techniques written by C. W. Snoek and published by . This book was released on 1990 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Multiphase Flow The Ultimate Measurement Challenge written by Xiaoshu Cai and published by American Institute of Physics. This book was released on 2007-07-02 with total page 972 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains peer-reviewed papers presented at the 5th International Symposium on Measurement Techniques for Multiphase Flows and 2nd International Workshop on Process Tomography. This symposium covers a wide scope of multiphase measurements including measurements. Advanced methods and recent researching developments in these fields are submitted for academic communication and discussion.
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1987 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measurement Techniques for Multiphase Flows written by Koji Okamoto and published by . This book was released on 2009 with total page 9701 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Machine Learning written by Andrea Mechelli and published by Academic Press. This book was released on 2019-11-14 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: Machine Learning is an area of artificial intelligence involving the development of algorithms to discover trends and patterns in existing data; this information can then be used to make predictions on new data. A growing number of researchers and clinicians are using machine learning methods to develop and validate tools for assisting the diagnosis and treatment of patients with brain disorders. Machine Learning: Methods and Applications to Brain Disorders provides an up-to-date overview of how these methods can be applied to brain disorders, including both psychiatric and neurological disease. This book is written for a non-technical audience, such as neuroscientists, psychologists, psychiatrists, neurologists and health care practitioners. Provides a non-technical introduction to machine learning and applications to brain disorders Includes a detailed description of the most commonly used machine learning algorithms as well as some novel and promising approaches Covers the main methodological challenges in the application of machine learning to brain disorders Provides a step-by-step tutorial for implementing a machine learning pipeline to neuroimaging data in Python
