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Suitability of ionic solutions as a chemical substance for chemical enhanced oil recovery - A simulation study

机译：离子溶液作为化学物质用于提高石油采收率的适用性-模拟研究

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摘要

Surfactant flooding is one of the important methods applied in chemical enhanced oil recovery (CEOR). Toxicity, high cost, and degradation at harsh conditions are the main issues that face companies during surfactant flooding process. Ionic liquids (ILs), known as liquid organic salts at ambient condition, have been suggested as alternative chemicals due to their superiority over the conventional surfactants. In this paper, we report simulation of core flooding experiments conducted using ionic liquid (Ammoeng 102) on Berea sandstone core samples to study efficiency of the IL on oil recovery. The core flooding experiments were published elsewhere (BinDahbag et al., 2014, 2015). The experiments were simulated using surfactant flood model (SFM), accessible in CMG STARS software. The measured oil recovery and pressure drop were utilized to history match the core flood experiments. First scenario was simulated by injecting 20 wt% salinity brine (83% sodium chloride, NaCl, and 17% calcium chloride, CaCl2) into a core sample initially saturated with 26% irreducible water saturation (S-wirr) of the same brine to recover 43% of the original oil in place (OOIP) followed by the ionic solution flooding to recover more than 5% of the OOIP. To study the effect of S-wirr on oil recovery using ionic solution, the second scenario was simulated similar to the first one in terms of the injected liquids and sequence except the irreducible water saturation (34% compared to 26%). About 38% of the OOIP was produced during brine flooding
机译：表面活性剂驱油是化学强化采油（CEOR）中应用的重要方法之一。在表面活性剂驱油过程中，公司面临的主要问题是毒性，高成本和在恶劣条件下的降解。离子液体（ILs）在环境条件下被称为液态有机盐，由于其优于常规表面活性剂的优势，已被建议作为替代化学品。在本文中，我们报告了使用离子液体（Ammoeng 102）对Berea砂岩岩心样品进行的岩心驱油实验模拟，以研究IL对采油的效率。核心驱油实验已在其他地方发表（BinDahbag等，2014，2015）。使用表面活性剂驱油模型（SFM）对实验进行了仿真，可在CMG STARS软件中访问。利用测得的油采收率和压降来与岩心驱油实验进行历史匹配。通过将20 wt％的盐度盐水（83％的氯化钠，NaCl和17％的氯化钙，CaCl2）注入最初用同一盐水的26％的不可还原水饱和度（S-wirr）饱和的岩心样品中进行模拟，来模拟第一种情况原始原油（OOIP）的43％，然后注入离子溶液，以回收5％以上的OOIP。为了研究S-wirr对使用离子溶液进行油采收的影响，除了注入水的饱和度和不可还原性（分别为34％和26％）以外，在注入液体和顺序方面模拟了第二种情况，与第一种情况相似。大约38％的OOIP是在盐水驱期间生产的

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  • 来源
    《Fuel》 |2019年第15期|368-373|共6页
  • 作者

    BinDahbag Mabkhot S.; Hassanzadeh Hassan; AlQuraishi Abdulrahman A.; Benzagouta Mohammed S.;

  • 作者单位

    King Fahd Univ Petr & Minerals, Coll Petr & Geosci, Dept Petr Engn, Dhahran 31261, Saudi Arabia|Hadhramout Univ Sci & Technol, Coll Engn & Petr, Dept Petr Engn, Mukalla 50511, Hadhramout, Yemen;

    Univ Calgary, Dept Chem & Petr Engn, Schulich Sch Engn, 2500 Univ Dr NW, Calgary, AB T2N 1N4, Canada;

    Natl Ctr Oil & Gas Technol, King Abdul Aziz City Sci & Technol, Riyadh 11442, Saudi Arabia;

    Univ Oum Bouaghi Larbi Ben Mhidi, Geol Dept, Oum El Bouaghi 04000, Algeria;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Ionic liquids; Ammoeng 102; Reservoir simulation; Water saturation; Brine salinity; Berea sandstone;

    机译：离子液体;Ammoeng 102;储层模拟;水饱和度;盐水盐度;Berea砂岩;

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