SPE Journal 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: Anthony R. Kovscek, Stanford University

Associate Editors: Younane N. Abousleiman, University of Oklahoma
I. Yucel Akkutlu, University of Oklahoma
Faruk O. Alpak, Shell
Henri J. Bertin, University of Bordeaux
Lee Y. Chin, ConocoPhillips
Akhil Datta-Gupta, Texas A&M University
Mingqin Duan, Chevron
Michael G. Edwards, Swansea University
Russell Ewy, Chevron
Mohammad R. Fassihi, BHP Billiton
Guohua Gao, Shell
Kassem Ghorayeb, Schlumberger
Hussein Hoteit, ConocoPhillips
Matthew D. Jackson, Imperial College
Behnam Jafarpour, University of Southern California
Robert G. Jeffrey, CSIRO Petroleum
Kristian Jessen, University of Southern California
Russell T. Johns, Pennsylvania State University
Amy Kan, Rice University
Zuleima T. Karpyn, Pennsylvania State University
Gaoming Li, University of Tulsa
Knut-Andreas Lie, SINTEF
Silviu Livescu, ExxonMobil
Jagannathan Mahadevan, University of Tulsa
George J. Moridis, Lawrence Berkeley National Laboratory
Geir Nævdal, International Research Institute of Stavanger
Hisham A. Nasr-El-Din, Texas A&M University
Srdjan Nesic, Ohio University
Mustafa Onur, Istanbul Technical University
Lincoln Paterson, CSIRO Petroleum
Mohammad Piri, University of Wyoming
William R. Rossen, Delft University of Technology
Josephina M. Schembre-McCabe, Chevron
Randall S. Seright, New Mexico Institute of Mining and Technology
Pingping Shen, Research Institute Petroleum Exploration & Development
Hamdi Tchelepi, Stanford University
Peter P. Valko, Texas A&M University
G. Paul Willhite, University of Kansas
Yu-Shu Wu, Colorado School of Mines
Burak Yeten, Chevron
Dongxiao Zhang, University of Southern California
Hong-Quan Zhang, University of Tulsa

Technical Editors: Bernt Aadnoy, University of Stavanger
Ivar Aavatsmark, Center for Integrated Petroleum Research
Hazim Abass, Saudi Aramco
Jalal Abedi, University of Calgary
Gurbat Agaev, Statoil
Chinedu Agbalaka, University of Oklahoma
Sergio Aguilar, Schlumberger
Ramadan Ahmed, University of Oklahoma
Ahmed Ahmed Kamel, University of Oklahoma
Mohammed Al Kobaisi, Stanford University
Wafaa Al-Ghanim, Kuwait Oil
Abdelsalam Al-Sarkhi, King Fahd University of Petroleum & Minerals
Sayyed Ahmad Alavian, NTNU
Hussein Alboudwarej, Chevron
Elnur Aliyev, Stanford University
Stephen Almond, MeadWestvaco
Khalid Alnoaimi, Stanford University
Mohammed Alotaibi, Saudi Aramco
Amar Alshehri, Stanford University
Vladimir Alvarado, University of Wyoming
Luiz Amado, Petrobras
Kashy Aminian, West Virginia University
Todd Arbogast, University of Texas at Austin
Rosalind Archer, University of Auckland
Luis Ayala, Pennsylvania State University
Subhash Ayirala, Shell
Khalid Aziz, Stanford University
Mehdi Bahonar, University of Calgary
Baojun Bai, Missouri University of Science and Technology
William Bailey, Schlumberger
Vishal Bang, ConocoPhillips
Antonio Bannwart, UNICAMP
Reza Barati, University of Wyoming
John Barker, Gaffney, Cline & Associates
Alfredo Battistelli, Saipe SpA
Daniela Bauer, IFP Energies Nouvelles
Peter Bauer-Gottwein, DTU
Lucas Bazan, Bazan Consulting
Bret Beckner, ExxonMobil
Pavel Bedrikovetsky, University of Adelaide
Valcir Beraldo, Petrobras
Steffen Berg, Shell
Nidheesh Bharadwaj, ExxonMobil
Eric Bhark, Texas A&M University
Deepankar Biswas, SiteLark
Martin Blunt, Imperial College
Edo Boek, Imperial College
Igor Bondino, Total
Paul Boonen, PathFinder Energy Services
Dieter Bothe, TU Darmstadt
Amina Boughrara, Schlumberger
Bernard Bourbiaux, IFP Energies Nouvelles
Harold Brannon, BJ Services
Neima Brauner, Tel Aviv University
Marco Brignoli, Eni E&P
Johannes Bruining, Delft University of Technology
Thang Bui, Schlumberger
Andrew Bunger, CSIRO Petroleum
Thomas Byer, Saudi Aramco
Michael Byrne, Senergy GB
Rodolfo Camacho Velazquez, Pemex E&P
Andrew Carnegie, Woodside
Louis Castanier, Stanford University
Frank Chang, Schlumberger
Ioannis Chatzis, University of Waterloo
Cheng Chen, University of Southern California
Qing Chen, ConocoPhillips
Shilin Chen, Halliburton
Tianhong Chen, Shell
Wen Chen, Chevron
Yan Chen, International Research Institute of Stavanger
Yiyan Chen, Schlumberger
Yuguang Chen, Chevron
Zuorong Chen, CSIRO Petroleum
Hao Cheng, Chevron
Doreen Chin, Shell
Hayes Chow, ConocoPhillips
Jes Christensen, DONG Energy
Yildiray Cinar, University of New South Wales
Faruk Civan, University of Oklahoma
Peter Clark, University of Alabama
Torsten Clemens, OMV Exploration & Production
Alberto Cominelli, Eni S.p.A
Michael Conway, Stim-Lab
John Cook, Schlumberger
Benoit Couet, Schlumberger
Jefferson Creek, Chevron
Paul Crumpton, Schlumberger
Agni Das, ConocoPhillips
Swapan Das, Marathon Oil
Hans de Pater, FENIX DELFT BV
Emmanuel Detournay, University of Minnesota
Clayton Deutsch, University of Alberta
Deepak Devegowda, University of Oklahoma
Thomas Dewers, Sandia National Laboratories
David DiCarlo, Texas A&M University
Rick Dickerson, Chevron
Didier Yu Ding, IFP Energies Nouvelles
Peter Doe, Shell
Yannong Dong, Shell
Hong'en Dou, Research Institute for Petroleum Exploration & Development
Christine Doughty, Lawrence Berkeley National Laboratory
Jing Du, Halliburton
Liangui Du, Hess
Mingqin Duan, Chevron
Shengkai Duan, Chevron
John Dudley, Shell
Maurice Dusseault, University of Waterloo
Varadarajan Dwarakanath, Chevron
Patrick Egermann, GDF SUEZ
Jo Eidsvik, NTNU
Ola Eiken, Statoil
Noaman El-Khatib, University Teknologi Petronas
Jonathan Ennis-King, CSIRO
Turgay Ertekin, Pennsylvania State University
Mashhad Fahes, Texas A&M University
Yong Fan, Chevron
Yongqian Fan, ConocoPhillips
Rouhollah Farajzadeh, Shell
Ebrahim Fathi, University of Oklahoma
Darryl Fenwick, Streamsim Technologies
Martin Ferer, West Virginia University
Martin Fernø, University of Bergen
Sergei Filatyev, ConocoPhillips
Marco Fiori, BP
Abbas Firoozabadi, Reservoir Engineering Research Institute
Will Fleckenstein, Colorado School of Mines
Kristin Flornes, International Research Institute of Stavanger
Peter Fokker, TNO Built Environment and Geosciences
Ted Frauenfeld, Alberta Research Council
Christopher Fredd, Schlumberger
Wayne Frenier, Frenier Chemistry
Kenji Furui, ConocoPhillips
Bala Gadiyar, Schlumberger
Darrell Gallup, Chevron
Leonhard Ganzer, University of Technology
Sarah Gasda, University of North Carolina
Ian Gates, University of Calgary
Sebastian Geiger, Heriot-Watt University
Dan Georgi, Baker Hughes
Eduardo Gildin, Texas A&M University
Bin Gong, Chevron
Olivier Gosselin, Total
Arne Graue, University of Bergen
Reid Grigg, New Mexico Institute of Mining and Technology
Herve Gross, Chevron
Marcel Grubert, ExxonMobil
Yaqing Gu, BP
Boyun Guo, University of Louisiana at Lafayette
Anshul Gupta, IBM T.J. Watson Research Center
Robin Gupta, ExxonMobil
Paul Hagin, Chevron
Richard Hallam, BP
Phillip Halleck, Pennsylvania State University
Paul Hammond, Schlumberger
Gary Hampson, Imperial College
Ming Han, Saudi Aramco
Remus Hanea, TNO
Dimitrios Hatzignatiou, International Research Institute of Stavanger
Kjetil Haugen, ExxonMobil
Chris Hawkes, University of Saskatchewan
Byron Haynes, Shell
Randy Hazlett, Potential Research Solutions
Johan Helland, International Research Institute of Stavanger
Rob Heller, Stanford University
Terry Hemphill, Halliburton
Dan Hill, Texas A&M University
Charles Hinrichsen, Chevron
George Hirasaki, Rice University
Robert Hite, Blue Ridge PTA
Florian Hollaender, Schlumberger
Jonathan Holmes, Schlumberger
Mehdi Honarpour, Hess
Roland Horne, Stanford University
Bin Hu, SPT Group
Haiying Huang, Georgia Institute of Technology
Chun Huh, University of Texas at Austin
Odd Hustad, Statoil
Richard Hutchins, Schlumberger
John Hutchison, Stepan Company
Vicky Jackson Nielsen, Hess
Hamid Jahangiri, University of Southern California
Namit Jaiswal, Shell
Mahmoud Jamiolahmady, Heriot-Watt University
Jan-Dirk Jansen, Delft University of Technology
Farzam Javadpour, University of Texas at Austin
James Jennings, Shell
Patrick Jenny, ETH Zurich
Yuanlin Jiang, BP
Abraham John, Shell
Alistair Jones, BP
Myles Jordan, Nalco
Sameer Joshi, Schlumberger
Binshan Ju, China University of Geosciences Beijing
Seung Kam, Louisiana State University
Jairam Kamath, Chevron
Amy Kan, Rice University
Danial Kaviani, University of Calgary
Hossein Kazemi, Colorado School of Mines
Mohan Kelkar, University of Tulsa
Patrick Kenny, Murphy Exploration & Production
Jill Kerr, ExxonMobil
Stephen Kimminau, Steve Kimminau Consulting
Michael King, Texas A&M University
Frans Klever, Shell
Hector Klie, ConocoPhillips
Myron Kuhlman, MK Tech Solutions
Cor Kuijvernhoven, Shell
Ergun Kuru, University of Alberta
Hemant Ladva, Schlumberger
Tara LaForce, Imperial College
Bitao Lai, University of Louisiana at Lafayette
Sau-Hai Lam, Princeton University
Sadok Lamine, Shell
Julius Langlinais, Louisiana State University
Paul Lapointe, Golder Associates
Stephen Laubach, University of Texas at Austin
Mickaele Le Ravalec-Dupin, IFP Energies Nouvelles
Nicolas Lenoir, Laboratoire Navier
Michael Lewan, US Geological Survey
Roland Lewis, Swansea University
Jeff Li, BJ Services
Michelle Li, SPT Group
Songyan Li, China University of Petroleum
Baosheng Liang, Chevron
Jenn-Tai Liang, University of Kansas
Liang Yueming, ExxonMobil
Peter Lichtner, Los Alamos National Lab
Martha Lien, Uni Research
Wenjuan Lin, Chevron
Konstantin Lipnikov, Los Alamos National Lab
Ning Liu, Chevron
Wim Looyestijn, Shell
Rolf Lorentzen, International Research Institute of Stavanger
Robert Loucks, University of Texas at Austin
Bo Lu, BP
Chuan Lu, Energy & Geoscience Institute
Jing Lu, The Petroleum Institute
Bernhard Lungwitz, Schlumberger
Jingsheng Ma, Heriot-Watt University
Christopher MacMinn, Massachusetts Institute of Technology
Hassan Mahani, Shell
Sahil Malhotra, University of Texas at Austin
Bradley Mallison, Chevron
Ivan Mantilla, Chevron
Philippe Marchina, Total
Dave Marshall, Baker Hughes
Stephan Matthai, Montanuniversität Leoben
Marko Maucec, Halliburton
Christian Mayer, ExxonMobil
Stanley McCool, University of Kansas
Paul McElfresh, Frac Tech Services
Maximiliano Medina, Statoil
Stephane Menand, Drillscan
Michael Michelsen, Technical University of Denmark
Karl Miller, Husky Energy
William Milliken, Chevron
Ilya Mishev, ExxonMobil
Robert Mitchell, Halliburton
Shahab Mohaghegh, West Virginia University
Kishore Mohanty, University of Texas at Austin
Saeedeh Mohebbinia, University of Texas at Austin
Arthur Moncorge, Total
Anirban Mondal, Texas A&M University
Jorge Palomino Monteagudo, ConocoPhillips
Daniel Moos, GeoMechanics International
Lee Morgenthaler, Shell
Ann Muggeridge, Imperial College
Tapan Mukerji, Stanford University
Fadi Nader, IFP Energies Nouvelles
Rajesh Nair, Chevron
Nariman Najafabadi, Chevron
Tawfik Nasr, ConocoPhillips
Hadi Nasrabadi, Texas A&M University
Rick Ng, Chevron
Dan Nichita, University of Pau
Myeong Noh, Chevron
Jan Nordbotten, University of Bergen
Kolawole Ojo, Apache
Hiroshi Okabe, Waseda University
Ryosuke Okuno, University of Alberta
Dean Oliver, Uni Research
Jon Olson, University of Texas at Austin
Pål-Eric Øren, Numerical Rocks
Franklin Orr, Stanford University
Andrei Osiptsov, Schlumberger
Liang-Biao Ouyang, Chevron
Saeed Ovaysi, University of Wyoming
Evren Ozbayoglu, University of Tulsa
Erdal Ozkan, Colorado School of Mines
Mayur Pal, Shell
Emilio Paladino, Federal University of Rio Grande do Norte
Feng Pan, Halliburton
Euripides Papamichos, Aristole University of Thessaloniki
Andrew Patterson, BP
Carlos Pedroso, Petrobras
Eduardo Pereyra, University of Tulsa
Hemant Phale, Chevron
Evgeny Pimonov, Schlumberger
Wolf Pinczewski, University of New South Wales
Mehran Pooladi-Darvish, University of Calgary
Andrei Popa, Chevron
Maysam Pournik, University of Oklahoma
Jean Prevost, Princeton University
Masa Prodanovic, University of Texas at Austin
Rajagopal Raghavan, Phillips Petroleum (Retd.)
Himansu Rai, Chevron
Varagur Rajan, Alberta Innovates Technology Futures
John Ratulowski, Schlumberger
Matthew Reagan, Lawrence Berkeley National Laboratory
Leandro Reis, Petrobras
Albert Reynolds, University of Tulsa
Reza Rezaee, Curtin University
Sonja Richter, Institute for Corrosion and Multiphase Flow
Beatrice Riviere, Rice University
Agathe Robisson, Schlumberger
Jose Roberto Rodrigues, Petrobras
Adolfo Rodriguez, ConocoPhillips
Oscar Mauricio Hernandez Rodriguez, University of São Paulo
Cindy Ross, Stanford University
Nicolas Roussel, University of Texas at Austin
Fredrik Saaf, Shell
Jon Sætrom, Statoil
Hemant Sahoo, ExxonMobil
Fernando Samaniego V., National Autonomous University of Mexico
Pierre Samier, Total
Peter Sammon, Computer Modelling Group
Robello Samuel, Halliburton
Pallav Sarma, Chevron
Rajes Sau, ExxonMobil
Yongkoo Seol, National Energy Technology Laboraotry
Kamy Sepehrnoori, University of Texas at Austin
Ahmad Sharifzadeh-Najavi, Schlumberger
Adrian Sheppard, Australian National University
Hua Shi, BP
Bor-Jier Shiau, University of Oklahoma
Mahdy Shirdel, University of Texas at Austin
Vijay Shrivastava, Computer Modelling Group
Shameem Siddiqui, Texas Tech University
Richard Sigal, University of Oklahoma
Tony Siggins, CSIRO Petroleum
Dmitriy Silin, Lawrence Berkeley National Laboratory
Ashok Singhal, Premier Reservoir Engineering Services
Svein Skjæveland, University of Stavanger
Jan-Arild Skjervheim, Statoil
Joseph Smith, ExxonMobil
Carl Sondergeld, University of Oklahoma
Michael Spearing, BP
Elizabeth Spiteri, Hess
Vegard Stenerud, Statoil
Karl Stephen, Heriot-Watt University
Vural Suicmez, Shell
Michael Sukop, Florida International University
Koichi Suzuki, INPEX
Hong Tang, Chevron
Kevin Taylor, Taylor Industrial Research
Catalin Teodoriu, Texas A&M University
Sunil Thomas, University of Texas at Austin
Raymond Tibbles, Schlumberger
Sven Tiefenthal, Penultimate Petroleum
Carlos Torres, University of Los Andes
Carlos Torres-Verdin, University of Texas at Austin
Emmanuel Toumelin, Chevron
Mayank Tyagi, Louisiana State University
Mafiz Uddin, Alberta Innovates Technology Futures
Evren Unsal, Schlumberger
Randi Valestrand, International Research Institute of Stavanger
Randy Vande Wal, Pennsylvania State University
Cornelis Veeken, Shell
Bolivia Vega, Stanford University
Rama Venkatesan, Chevron
Jany Vielma, Multiphase Systems Intergration
Michael Vincent, Insight Consulting
Olga Vizika, IFP Energies Nouvelles
Thomas von Schroeter, BP
Denis Voskov, Stanford University
Anthony Wachs, IFP Energies Nouvelles
John Waggoner, Schlumberger
Fazrie Wahid, Schlumberger
Dongmei Wang, University of North Dakota
Honggang Wang, Stanford University
Jianxin Wang, Chevron
John Wang, Pennsylvania State University
Norman Warpinski, Pinnacle Technologies
Shingo Watanabe, Texas A&M University
James Watts, Halliburton
Thomas Welton, Halliburton
Xian-Huan Wen, Chevron
Xiaowei Weng, Schlumberger
Dag Wessel-Berg, SINTEF Petroleum Research
Mary Wheeler, University of Texas at Austin
Christopher White, Louisiana State University
Lee Whitebay, Whitebay and Associates
Jennifer Wilcox, Stanford University
Eric Withjack, PTS Laboratories
Andrew Wojtanowicz, Louisiana State University
Christian Wolfsteiner, Chevron
Ron Wong, University of Calgary
Bailin Wu, CSIRO Petroleum
Bisheng Wu, CSIRO Petroleum
Nenyou Wu, Guangzhou Institute of Energy Conversion
Xiao-Hui Wu, ExxonMobil
Jonathan Wylde, Clariant Oil Services
Haibin Xu, Shell
Hui Xu, China University of Petroleum Beijing
Qiang Xu, Chevron
Tianfu Xu, Lawrence Berkeley National Laboratory
Koji Yamamoto, Japan Oil, Gas and Metals National Corporation
Wei Yan, Center for Energy Resources Engineering
Chaodong Yang, Computer Modelling Group
Calvin Yao, BHP Billiton
Xiaolong Yin, Colorado School of Mines
Yannis Yortsos, University of Southern California
Keita Yoshioka, Chevron
Hua Yuan, Petrotel
Luo Yuejin, BP
Alain Zaitoun, Poweltec
Sohrab Zendehboudi, University of Waterloo
Murat Zeybek, Schlumberger
Lianyang Zhang, University of Arizona
Ronglei Zhang, Colorado School of Mines
Tianhua Zhang, Schlumberger
Xi Zhang, CSIRO Petroleum
Yanfen Zhang, Chevron
Yongli Zhang, University of Tulsa
Yong Zhao, ConocoPhillips
Yunxu Zhou, National Oilwell Varco
Hui Zhou, ConocoPhillips
Ding Zhu, Texas A&M University
Hong Zhu, Baker Hughes
Zhouyuan Zhu, Stanford University
Murtaza Ziauddin, Schlumberger
Pacelli Zitha, Delft University of Technology
John Zuta, Geological Survey of Denmark and Greenland (GEUS)