SPE Production & Operations extends its sincere appreciation to everyone who provided a technical review for at least one paper during 2011. Many of our reviewers contributed their expertise to more than one paper during the year. We recognize the time commitment these individuals have made in agreeing to review papers and appreciate the impact that their efforts have had on the published papers throughout the year. Volunteers like these individuals are essential to assuring the journal publishes manuscripts of high quality and lasting value. Thank you to our dedicated reviewers for their contributions.

Editor-in-Chief: Stephen A. Holditch, Texas A&M University

Executive Editor: Dean Wehunt, Chevron

Associate Editors: Frank Chang, Schlumberger
Craig Cipolla, Schlumberger
Peter Clark, University of Alabama
Ian Collins, BP Exploration
Robert Duenckel, Carbo Ceramics
Niall Fleming, Statoil
Joyce Holtzclaw, Vintage Production California
Shauna Noonan, ConocoPhillips
Liang-Biao Ouyang, Chevron
Carlos Pedroso, Petrobras
Joseph Smith, ExxonMobil Upstream Research
Ding Zhu, Texas A&M University

Technical Editors: Bernt Aadnoy, University of Stavanger
Hazim Abass, Saudi Aramco
Kingsley Abhulimen, University of Lagos
Sergio Aguilar, Schlumberger
Abdulwahab Al-Ghamdi, Saudi Aramco
Francisco Alhanati, C-FER Technologies
Stephen Almond, MeadWestvaco
Vladimir Alvarado, University of Wyoming
Ismael Anaya, PDVSA
Mahmoud Asadi, ProTechnics
Annie Audibert-hayet, TOTAL
Baojun Bai, Missouri University of Science and Technology
William Bailey, Schlumberger
Reza Barati, University of Wyoming
Lissett Barrios, Shell
Samih Batarseh, Aera Energy
Surendra Bateja, Oil & Natural Gas
Stephen Baumgartner, Marathon Oil
Pavel Bedrikovetsky, University of Adelaide
Pankaj Bhambri, British Petroleum (BP Americas)
Olivia Bommarito, BP
Curtis Boney, Schlumberger
Harold Brannon, BJ Services
David Brewster, ConocoPhillips
Marco Brignoli, Eni E&P
Ernie Brown, Schlumberger
Louis Castanier, Stanford University
Andrew Chen, Shell Canada
Jiansheng Chen, Baker Hughes
Yiyan Chen, Schlumberger
Yueming Cheng, West Virginia University
Williams Chirinos, WorleyParsons Calgary
Suk-Kyoon Choi, Chevron Energy Technology
Hayes Chow, ConocoPhillips
Sandra Cobianco, Eni E&P
Laurence Corbett, Schlumberger
Gerald Coulter, Coulter Energy International
Alexander Crabtree, Hess
Dwyann Dalrymple, Nalco
Rick Dickerson, Chevron
Mike Dowling, Schlumberger
Jing Du, Pinnacle Technologies
Larry Eoff, Halliburton
Arnaldo Espinel, Chevron
Yong Fan, Chevron Asia Pacific E&P
Christopher Fredd, Schlumberger
Bryan Freeman, Chevron
Wayne Frenier, Frenier Chemistry
Kyle Friehauf, University of Texas at Austin
Hongren Gu, Schlumberger
Boyun Guo, University Louisiana
D.V. Satya Gupta, BJ Services
Jim Hall, Shell
Richard Hallam, BP America
Gang Han, Hess
Kirk Hansen, Shell
Kes Heffer, Heriot-Watt University
Julio Herbas, Maersk Oil & Gas Oil & Gas
Dan Hill, Texas A&M University
Charles Hinrichsen, Chevron
Mehdi Honarpour, Hess
Paul Howard, Schlumberger
Bin Hu, SPT Group
Tianping Huang, Baker Hughes
Richard Hutchins, Schlumberger
Rong Hwang, Chevron
Vicky Jackson Nielsen, Hess
Merrill Jamieson, Canyon Technical Services
Robert Jeffrey, CSIRO
Alan Johnson, Shell UK
Michael Johnson, ExxonMobil
Gerard Joosten, Shell
Havard Joranson, StatoilHydro
Myles Jordan, Nalco
M. Hosein Kalaei, University of Texas at Austin
Leonard Kalfayan, Hess
Keith Katahara, Hess
Tarkeshwar Kumar, Indian School of Mines
Karl LaFleur, Consultant
David Lagerlef, ConocoPhillips
Hon Chung Lau, Shell
Stephen Laubach, University of Texas at Austin
Alexandre Lavrov, SINTEF Petroleum Research
Joel Le Calvez, Schlumberger
Jeff Li, BJ Services
Leiming Li, Schlumberger
Lingling Li, Akzo Nobel Surface Chemistry
Gary Limb, ConocoPhillips
Sho-wei Lo, Shell
Elyezer Lolon, Anadarko
Bernhard Lungwitz, Schlumberger
Sudhakar Mahajanam, ConocoPhillips
Srikant Mahapatra, ADMA-OPCO
Leon Massaras, Synergy Technology Co.
Louis Mattar, Fekete Associates
Michael Mayerhofer, Pinnacle Technologies
Paul McElfresh, Frac Tech Services
Jennifer Miskimins, Colorado School of Mines
Jakob Monberg, Maersk Oil & Gas Oil
Lee Morgenthaler, Shell
P. N. Mutalik, Williams Exploration & Production
Hisham Nasr-El-Din, Texas A&M University
Philip Nguyen, Halliburton
Mark Ogier, Chevron Thailand
Pieter Oudeman, Shell
Erdal Ozkan, Colorado School of Mines
Marek Pakulski, Huntsman
Feng Pan, Halliburton
Andrew Patterson, BP Exploration
John Patterson, ConocoPhillips
Alhad Phatak, Schlumberger
Laurent Pirolli, Schlumberger Cambridge Research
Maysam Pournik, University of Oklahoma
Edwin Quint, Shell
Varagur Rajan, Alberta Innovates Technology Futures
Muthukumarappan Ramurthy, Halliburton Energy Services
Peggy Rijken, Chevron
Golchehreh Salamat, Schlumberger
Javier Sanchez Reyes, Schlumberger
Kenneth Saveth, Weatherford
Randall Seright, New Mexico Tech
Hua Shi, BP America
Shekhar Sinha, Schlumberger
Jason Skufca, BJ Services
David Smith, Occidental Permian
Jose Ricardo Solares, Saudi Aramco
Hariprasad Subramani, Chevron
Gabor Takacs, Miskolc University
Malcolm Talbot, Halliburton
Kevin Taylor, Taylor Industrial Research
Raymond Tibbles, Schlumberger
Frank Ting, Chevron
Bernard Tremblay, Saskatchewan Research Council
Pickard Trepess, Hunimex
Francisco Trevisan, C-FER Technologies
Porter Underwood, Underwood Consulting
Donald Uphold, Chevron
Michael Vincent, Insight Consulting
David Wagner, Chevron
Syed Waheed, Halliburton
Norman Warpinski, Pinnacle Technologies
Yunan Wei, Consultant
Thomas Welton, Halliburton
Michael Wiggins, William M Cobb & Associates
Hector Wills, Colorado School of Mines
Nick Wolf, Retired
Christian Wolfsteiner, Chevron
Bailin Wu, CSIRO
Jonathan Wylde, Clariant Oil Services
Yao Yao, Exxonmobil Upstream Research
Keita Yoshioka, Chevron
Mingdong Yuan, Chevron Energy Technology
He Zhang, Schlumberger
Hong-Quan Zhang, University of Tulsa
Xi Zhang, CSIRO
Hong Zhu, Baker Hughes
Murtaza Ziauddin, Schlumberger