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Improving SAGD performance by modifying the well configuration .

机译：通过修改油井配置来提高SAGD性能。

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摘要

Steam Assisted Gravity Drainage (SAGD) is a commercially successful recovery process to produce heavy oils and bitumen. The method ensures both a stable displacement of steam and economical rates by using gravity as the driving force with a pair of horizontal wells for injection/production. Although several ways of improving the performance have been discussed in the literature, the well configuration employed in the process has remained the same as originally proposed by Butler. This thesis presents a study aimed at examining the applicability of different well configurations to SAGD process in Athabasca and Cold Lake reservoirs in central and northern Alberta, Canada.;The fully implicit thermal reservoir simulator, CMG's STARS TM 2007, with fully coupled wellbores was used to account for frictional pressure drop and heat losses along the wellbore. Three dimensional numerical simulation models were set up and sensitivity analyses were conducted to evaluate the effects of several process parameters. The parameters analyzed were vertical well spacing, well pair location in the pay zone, injection pressure, production well flowing pressure, and the length of horizontal wells. After optimization of the operating parameters an investigation of different well configurations was conducted by using these models.;The result of this work shows that the SAGD process performance in Athabasca and Cold Lake reservoirs can be significantly improved by using new well configurations.
机译：蒸汽辅助重力排水（SAGD）是商业上成功的回收工艺，用于生产重油和沥青。该方法通过使用重力作为驱动力并使用一对水平井进行注入/生产，从而确保了稳定的蒸汽排量和经济的速率。尽管在文献中已经讨论了几种改善性能的方法，但该工艺中采用的油井配置仍与Butler最初提出的相同。本论文的目的是研究在加拿大艾伯塔省中部和北部的阿萨巴斯卡和冷湖水库中，不同井眼构造对SAGD工艺的适用性。；使用了完全隐式储层模拟机，CMG的STARS TM 2007，具有完全耦合的井眼考虑到沿井眼的摩擦压降和热量损失。建立了三维数值模拟模型，并进行了敏感性分析，以评估几个工艺参数的影响。分析的参数是垂直井间距，在产油层中的井对位置，注入压力，生产井流动压力和水平井长度。在优化操作参数之后，使用这些模型对不同的井眼配置进行了研究。这项工作的结果表明，通过使用新的井眼配置，可以显着提高阿萨巴斯卡和冷湖水库的SAGD工艺性能。

著录项

  • 作者

    Mojarab, Mohamad.;

  • 作者单位

    University of Calgary (Canada).;

  • 授予单位 University of Calgary (Canada).;
  • 学科 Engineering Petroleum.
  • 学位 M.Sc.
  • 年度 2009
  • 页码 104 p.
  • 总页数 104
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 石油、天然气工业;
  • 关键词

  • 入库时间 2022-08-17 11:38:29

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