SPE Drilling & Completion 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: Curtis Cheatham, Weatherford International

Associate Editors: Shilin Chen, Halliburton
Fionn Iversen, International Research Institute of Stavanger
John Mason, BP Exploration Operating
Maximiliano Medina, Statoil Canada
Steve Nas, SPT Group
Bernard Piot, Schlumberger
Kaibin Qiu, Schlumberger
Carl Thaemlitz, Halliburton
John Thorogood, Drilling Global Consultant
Christoph Zerbst, Petroleum Development Oman
Yunxu (Joe) Zhou, National Oilwell Varco

Technical Editors: Bernt Aadnoy, University of Stavanger
Younane Abousleiman, University of Oklahoma
Sergio Aguilar, Schlumberger
Khalid Ahmed, Kuwait Oil Company
Ramadan Ahmed, University of Oklahoma
Goke Akinniranye, Schlumberger
Luis Alcoser, Shell
William Allen, BP
Stephen Almond, MeadWestvaco
Mohammed Alotaibi, Saudi Aramco
Md Amanullah, Saudi Aramco
Renzo Angeles, ExxonMobil
Oystein Arild, International Research Institute in Stavanger
Annie Audibert-hayet, Total
Jim Azzola, Thermal Science
Ali Bagci, Baker Hughes
Mao Bai, Halliburton
Nicole Baird, Shell
Stephen Baumgartner, Marathon Oil
Walid Ben-Ismail, Schlumberger
Glen Benge, Benge Consulting
Ken Bertagnolli, US Synthetic
Ben Bloys, Chevron
Paul Boonen, PathFinder Energy Services
Kenneth Bridges, Kenneth Bridges Consulting
Paul Broussard, Repsol
Craig Brown, APS Technology
Michael Byrne, Senergy
Bob Carpenter, Chevron
Frank Chang, Schlumberger
David Chen, Halliburton
Jonggeun Choe, Seoul National University
Sing Ki Choi, CSIRO Petroleum
Suk-Kyoon Choi, Chevron
Hayes Chow, ConocoPhillips
Sandra Cobianco, ENICHINA
John Cohen, AGR Subsea
Patrick Collins, Petroleum Geomechanics
John Cook, Schlumberger
Lance Cook, Shell
Laurence Corbett, Schlumberger
H.M. Cornette, Chevron
David Curry, Baker Hughes
Rageb Dajani, Hess
Michael Davis, DrillScience
Rapier Dawson, ExxonMobil (retired)
Barkim Demirdal, C-FER Technologies
Sebastian Desmette, Diamant Drililng Services
Rick Dickerson, Chevron
Mingqin Duan, Chevron
Maurice Dusseault, University of Waterloo
Mark Dykstra, Shell
Russell Ewy, Chevron
Lei Fang, Baker Hughes
Carlos Fonseca, Petrobras
Bryan Freeman, Chevron
George Fuller, Shell
Kenji Furui, ConocoPhillips
Bala Gadiyar, Schlumberger
Deepak Gala, Weatherford International
Guohua Gao, Shell
Laurent Gerbaud, Mines ParisTech
George Gillespie, Weatherford International
Rune Godoy, Statoil
Naval Goel, Consultant
Jeremy Greenwood, Halliburton
Hongren Gu, Schlumberger
Alex Guild, Chevron
Boyun Guo, University of Louisiana at Lafayette
Quanxin Guo, M-I Swaco
Dennis Hahn, Enerplus
Afif Halal, Shell
Kirk Hansen, Shell
Roy Hartley, Aurelian Oil and Gas
Dimitrios Hatzignatiou, International Research Institute in Stavanger
Asadollah Hayatdavoudi, University of Louisiana at Lafayette
Kes Heffer, Heriot-Watt University
Robert Holtslag, TracsConsult
Paul Howard, Schlumberger
W.S. Huang, Chevron
Rosemary Irrgang, Irrgang Reservoir Management
Christopher Jablonowski, Shell
Richard Jachnik, Baker Hughes
Robert Jeffrey, CSIRO Petroleum
Ahmed Kamel, University of Alaska at Fairbanks
Anand Kannappan, Weatherford International
Vassilios Kelessidis, Technical University of Crete
Patrick Kenny, Murphy Exploration & Production
Frans Klever, Shell
Dick Krabbendam, DPK Engineering
David Kulakofsky, IPT Global
Tarkeshwar Kumar, Indian School of Mines
Ergun Kuru, University of Alberta
Rodger Lacy, Weatherford International
Hemant Ladva, Schlumberger
Karl LaFleur, Independent Consultant
Hon Chung Lau, Shell
Alexandre Lavrov, SINTEF Petroleum Research
Gensheng Li, China University of Petroleum Beijing
Jeff Li, BJ Services
Zifeng Li, Yanshan University
Xiushan Liu, Sinopec Research Institute of Petroleum Engineering
Elyezer Lolon, Marathon Oil
Rosana Lomba, Petrobras
Jagannathan Mahadevan, University of Tulsa
Srikant Mahapatra, Abu Dhabi Marine Operating
John Maida, Halliburton
Pierre-David Maizeret, Schlumberger
Zhen Mao, Schlumberger
Dave Marshall, Baker Hughes
Buddy McDaniel, Halliburton
Stephane Menand, DrillScan US
Graham Mensa-Wilmot, Chevron
Steve Metcalf, BJ Services
Cristiane Miranda, Petrobras
Robert Mitchell, Halliburton
Daniel Moos, Baker Hughes
Kamal Morad, Fekete
Michael Morgenthaler, Cutpoint
Zsolt Nagy, Schlumberger
Rajesh Nair, Chevron
Runar Nygaard, Missouri State University
Evren Ozbayoglu, University of Tulsa
Paul Paslay, Manatee
Andrew Patterson, BP
Carlos Pedroso, Petrobras
Joao Carlos Placido, Petrobras
Jack Pruitt, Halliburton
Bharath Rao, BTechSoft
Peggy Rijken, Chevron
Gareth Roberts, Darron Oil Tools
Agathe Robisson, Schlumberger
Sid Ruiz, Stokes & Spiehler
Robello Samuel, Halliburton
Javier Sanchez Reyes, Schlumberger
Frederic Santarelli, Geomec
Otto Santos, Petrobras
Steven Sawaryn, BP
Thomas Schaaf, GDF SUEZ
Barry Schneider, Shell E&P
Paul Scott, ConocoPhillips
Hedi Sellami, Paris School of Mines
Zhaohui Shan, Halliburton
Jibin Shi, Schlumberger
Kalyan Singamshetty, ConocoPhillips
Jason Sitchler, Schlumberger
David Smith, Occidental Permian
Jackie Smith, Stress Engineering Services
Mark Smith, Weatherford International
Roderic Stanley, NDE Information Consultants
Junichi Sugiura, Schlumberger
Farzad Tahmourpour, Halliburton
Brian Tarr, Shell
Raymond Tibbles, Schlumberger
Steven Tipton, University of Tulsa
Bernard Tremblay, Saskatchewan Research Council
Eric Upchurch, Chevron
Peter Valko, Texas A&M University
Claas Van Der Zwaag, Statoil
Michael Vincent, Fracwell
David Wagner, Chevron
Syed Waheed, Halliburton
Michael Weatherl, Hess
Yunan Wei, C&C Reservoirs
Geoffrey Weighill, Completions Engineer
Bart Willigers, Palantir Economic Solutions
Warren Winters, BP
Hongwei Wu, Texas First Industrial
Xianping (Sean) Wu, Schlumberger
Liangjun Xie, Schlumberger
YingQing Xu, Baker Hughes
Gongrui Yan, Schlumberger
Yao Yao, ExxonMobil
Guoqiang Yin, Halliburton
Luo Yuejin, BP
Karim Zaki, Advantek
Jianguo Zhang, BP
Jun Zhang, Schlumberger
Haifeng Zhao, GE
Andrew Zheng, Schlumberger
Hong Zhu, Baker Hughes
Jiang Zhu, Consultant
Robert Zimmerman, Imperial College