SPE Technical Publications Staff
Associate Director, Technical Publications: Rebekah Stacha
Journal Editorial and Production Manager: Bryan Hibbard
Peer Review Administrator: Stacie Hughes 
Senior Staff Editor: Judith Martis


SPE PRODUCTION & OPERATIONS (ISSN 1930-1863) is published in February, May, August, and November by the Society of Petroleum Engineers, 222 Palisades Creek Drive, Richardson, TX 75080 USA. Subscriptions: USD 70/yr (members), USD 170/yr (nonmembers). To subscribe, go to www.spe.org/journals.

Editorial Policy: SPE encourages open and objective discussion of technical and professional subjects pertinent to the interests of the Society in its publications. SPE publications shall contain no judgmental remarks or opinions as to the technical competence, personal character, or motivations of any individual, company, or group. Any material that, in the publisher’s opinion, does not meet the standards for objectivity, pertinence, and professional tone will be returned to the contributor with a request for revision before publication.

Manuscript Submission: Author instructions available at http://www.spe.org or upon request. Submit manuscripts to http://mc.manuscriptcentral.com/spepo.

SPE Publications: SPE is not responsible for any statement made or opinions expressed in its publications, including the Journal of Petroleum Technology, Journal of Canadian Petroleum Technology, Oil and Gas Facilities, SPE Drilling & Completion, SPE Economics & Management, SPE Journal, SPE Production & Operations, and SPE Reservoir Evaluation & Engineering.

Copyright and Use:  The Society of Petroleum Engineers grants permission to make up to five copies of any article in this journal to which it holds copyright (as designated by copyright statement on the first page of the article). This permission is in addition to copying rights granted by law as fair use or library use. For copying beyond that provided by law or the above permission, libraries and other users should contact the Copyright Clearance Center (CCC), 222 Rosewood Drive, Danvers, Massachusetts 01923, USA or write SPE Customer Service Dept. at SPE Dallas to obtain permission to make more than five copies or for any other special use of copyrighted material in this journal. The above permission notwithstanding, SPE does not waive its right as copyright holder under the U.S. Copyright Act. Permission to reproduce articles for commercial use is restricted to an abstract of no more than 300 words. Illustrations may not be reproduced for such use; abstracts may not be included in commercial electronic products/publications without the express written permission of the Society of Petroleum Engineers Inc. The abstract should contain conspicuous acknowledgment of SPE copyright. Contact SPE, P.O. Box 833836, Richardson, Texas 75083-3836, USA, fax 01.972.952.9435. Printed copies of recent SPE papers are available from  OnePetro. 

SPE Offices: Americas,  222 Palisades Creek Dr., Richardson, TX 75080-2040, USA, phone 01.972.952.9393, fax 01.972.952.9435.  Houston, 10777 Westheimer Rd., Suite 1075, Houston, TX 77042-3455, USA, phone 01.713.779.9595, fax 01.713.779.4216.  Asia Pacific, Suite 12.01, Level 12, Menara IGB, Mid Valley City, Lingkaran Syed Putra, 59200 Kuala Lumpur Malaysia, phone 60.3.2182.3000, fax 60.3.2182.3030.  Europe and Sub-Saharan Africa, Fourth Floor West, America House, 2 America Square, London EC3N 2LU, phone 44.20.7299.3300, fax 44.20.7299.3309.  Russia and Caspian, Berezhkovskaya naberezhnaya, 6, 4th floor, Moscow Russia, 121059, phone 7.495.2680454.  Middle East, North Africa, and South Asia, Office 3101/02, 31st Floor, Fortune Tower, JLT, P.O. Box 215959, Dubai, UAE, phone 971.4.457.5800, fax 971.4.457.3164.  Canada, 1410, 715 5th Ave SW, Calgary, AB T2P 2X6 Canada, phone 01.403-930-5454, fax 01.403-930-5470.