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An Improved Set of Design Criteria for Slotted Liners in Steam Assisted Gravity Drainage Operation

Author

Listed:
  • Chenxi Wang

    (Department of Civil & Environmental Engineering, School of Mining & Petroleum Engineering, University of Alberta, 9211 116 St., Edmonton, AB T6G1H9, Canada)

  • Mohammad Haftani

    (Department of Civil & Environmental Engineering, School of Mining & Petroleum Engineering, University of Alberta, 9211 116 St., Edmonton, AB T6G1H9, Canada)

  • Jesus David Montero Pallares

    (Department of Civil & Environmental Engineering, School of Mining & Petroleum Engineering, University of Alberta, 9211 116 St., Edmonton, AB T6G1H9, Canada)

  • Alireza Nouri

    (Department of Civil & Environmental Engineering, School of Mining & Petroleum Engineering, University of Alberta, 9211 116 St., Edmonton, AB T6G1H9, Canada)

Abstract

Slotted liners are widely used in steam-assisted gravity drainage (SAGD) wells to control sand production and sustain wellbore productivity. The slotted liner can provide desirable performance when appropriately designed. A literature review indicates a limited number of studies that offer design criteria specifically for SAGD wells. Moreover, past criteria seem to neglect some key factors, which may lead to inadequate slot design. This paper proposes a set of graphical design criteria for slotted liners in SAGD production wells, using prepacked sand retention testing (SRT) data. The SRT is designed to incorporate several essential factors that are not present in the past design criteria, such as slot density, steam breakthrough, and particle size distribution (PSD). The proposed design criteria are presented graphically for normal and aggressive conditions, where the aggressive condition accounts for the potential occurrence of the steam breakthrough. It is found that the upper bound of the design window is substantially lower for the aggressive condition due to the higher sand production after the steam breakthrough. The design criteria also indicate that the slotted liner is suitable only for the formations with low fines content.

Suggested Citation

  • Chenxi Wang & Mohammad Haftani & Jesus David Montero Pallares & Alireza Nouri, 2020. "An Improved Set of Design Criteria for Slotted Liners in Steam Assisted Gravity Drainage Operation," Energies, MDPI, vol. 13(21), pages 1-18, October.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:21:p:5685-:d:437738
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    References listed on IDEAS

    as
    1. Yujia Guo & Alireza Nouri & Siavash Nejadi, 2020. "Effect of Slot Width and Density on Slotted Liner Performance in SAGD Operations," Energies, MDPI, vol. 13(1), pages 1-18, January.
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