6th North American Conference on
MULTIPHASE TECHNOLOGY
Banff, Canada: 4–6 June 2008

Bound copies of the proceedings of this conference, together with a CD of the proceedings, can be ordered from Mrs. Marian Rolfe at BHR Group, for the price of £240.

CONTENTS

FOREWORD 

FLOW SIMULATION – NEW APPROACHES 
Advanced simulation of gas-liquid pipelines 
P Andreussi, University of Pisa, Italy; M Bonizzi, TEA Sistemi SpA, Italy;
A Di Lullo, M Margarone, A Scotti, S Taddei, ENI E&P, Italy

Multi-dimensional simulations of slug and slug-like flows in inclined pipes and channels
H Laux, E A Meese, S Mo, S T Johansen, SINTEF, Norway; K M Bansal, T J Danielson, ConocoPhillips Company, USA; A Goldszal, J I Monsen, TOTAL E&P Norge A/S, Norway

APPLICATION – WHAT IS NEW?
Recent advances in slug flow modelling 
P Adames, S Smith, Neotechnology Consultants Ltd, Canada; W Svrcek, University of Calgary, Canada; B Young, University of Auckland, New Zealand

The advance towards WANDA multi-phase: Simulations of fast transients in multi-phase pipelines
A G T J Heinsbroek, H Hartmann, Deltares | Delft Hydraulics, The Netherlands

Use of multiphase analysis to enhance production operations in the Lobo Gas Gathering System
T J Danielson, Q T Bui, ConocoPhillips Co., USA

EQUIPMENT – KEEP THEM MOVING
Measurement of reference velocity vector for four-sensor conductance probes using orthogonal, high speed cameras
S Pradhan, G Lucas, X Zhao, University of Huddersfield, UK

Pressure build-up and gap flows in multiphase screw pumps 
A Scharf, G Aleksieva, D Mewes, University of Hannover, Germany; J Lewerenz,
M Reichwage, Bornemann Pumps, Germany

Brown field revitalization using small twin-screw multiphase pumps 
D Müller-Link, G Rohlfing, R Linck, Joh. Heinr. Bornemann GmbH, Germany

FLOWS: STRATIFIED FLOW
Stability analysis of the Biberg pre-integrated stratified two-phase flow model including profile factors
H Holmås, D Biberg, SPT Group Norge AS, Norway; G Johnson, R Schulkes, StatoilHydro ASA, Norway; T Sira, Institute for Energy Technology, Norway

Comparison of two phase pipe flow experiments with a roll wave model and a commercial simulator
A De Leebeeck, O J Nydal, Norwegian University of Science and Technology, Norway; G W Johnson, Statoil Hydro, Norway; J I Monsen, A Goldszal, TOTAL E&P Norge AS, Norway

FLOWS: SOLIDS
Sand transport characteristics in water and two-phase air/water flows in pipelines
S Al-lababidi, W Yan, H Yeung, Cranfield University, UK; P Sugarman, C P Fairhurst, BP E&P, UK

Solids re-entrainment in an inclined pipe using air-water flow 
I Pothof, W van Kesteren, Deltares | Delft Hydraulics, The Netherlands;
R Roberts, G Kouba, Chevron, USA

APPLICATION – HEAVY OIL
Experimental study on core-annular flow behaviour with the injection of  air in horizontal pipe
P Poesio, D Strazza, B Grassi, Università degli studi di Brescia, Italy; M Margarone, ENI E&P, Italy

Effects of high oil viscosity on drift velocity for horizontal pipes 
B Gokcal, A S Al-Sarkhi, C Sarica, The University of Tulsa, USA

FLOW SIMULATION – SLUGS TO GROW OR NOT TO GROW!
Slug frequency in gas/liquid horizontal flow 
E Al-Safran, Kuwait University, Kuwait

A growth model for dynamic slugs in gas/liquid horizontal pipes 
U Kadri, R F Mudde, R V A Oliemans, Delft University of Technology, The Netherlands

Effect of upstream conditions on the two phase flow in the large diameter vertical pipe
S F Ali, H Yeung, Cranfield University, UK

EQUIPMENT – SAGD
The combination of ESP and Vx technology towards SAGD well production optimization
B G Pinguet, E Guerra, C Drever, Schlumberger, Canada

The importance of fluid property knowledge in multiphase metering applied to SAGD well production
D Hompoth, Suncor Energy, Canada; B G Pinguet, Schlumberger, Venezuela;
E Guerra, Schlumberger, Canada

FLOW: FLOW ASSURANCE
Experimental observations and modelling discussions on wax deposition using a bench top flow facility
G Sucre, C Sarica, H Chen, E Dellecase, M Volk, University of Tulsa, USA

A methodology for fast thermodynamic computation of mixed composition streams: Application to subsea pipeline modelling
P Dhoorjaty, D Erickson, P Parthasarathy, Multiphase Solutions, Inc., USA

Effect of polymer drag reducing agent on immiscible oil-water horizontal flow 
M Al-Yaari, B Abu-Sharkh, King Fahd University, Saudi Arabia;
A Soleimani, Schlumberger Dhahran Research Center, Saudi Arabia;
A Al-Sarkhi, University of Tulsa, USA

CASE HISTORIES: SEVERE SLUGGING
Analysis of multiphase flow instabilities in the Girassol deep offshore production system
E Zakarian, D Larrey, Total E&P, France

Shell Smart Choke: Slug suppression experience in the Gulf of Mexico 
R Lacy, Shell Global Solutions (US) Inc., USA; J Germanese, Shell Exploration and Production Company, USA; G Haandrikman, Shell Global Solutions International B.V., The Netherlands; P Manfield, Shell Malaysia, Malaysia

Comparisons between severe slug mitigation methods by increasing backpressure and throttling riser outlet valve
H Yeung, Y Cao, L Lao, Cranfield University, UK

AUTHOR INDEX