Sustainable crude oil recovery: Advancing technology in microbial souring control and microbial enhanced oil recovery

可持续原油采收：微生物酸化控制和微生物采收率先进技术

• 批准号: 531772-2018
• 负责人: Gieg, Lisa
• 金额: $ 7.42万
• 依托单位: University of Calgary
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=698083
• 关键词: Sustainable; crude; oil; recovery; Advancing

Microorganisms that naturally inhabit oil reservoirs can contribute negatively or positively to oil and gas industry operations. On the negative side, sulfate-reducing microorganisms that convert sulfate to sulfide contribute to reservoir souring, pipeline corrosion, and detrimental health impacts. On the positive side, the metabolic activities of reservoir-associated microorganisms may contribute to sustainable, enhanced oil recovery. Building on previous findings, the proposed project will focus on advancing (1) the control of souring and (2) MEOR technology with an emphasis on conducting research at high temperature and in the presence of crude oil. In the area of souring control, the contributions of microbial activities to reservoir souring at high or low temperature will be determined. New nitrate and biocide combinations will be examined to alleviate souring, focusing on high temperature fields. In the area of MEOR, various microbial activities will be explored to enhance oil production at high and low temperatures by using commercially-available and inexpensive substrates or biodegradable oil components to promote microbial growth and activity. We will also test the efficacy of existing methods, such as the use of hydrocarbon or solvent application, to enhance oil production at selected oil fields. The outcome of the proposed project will help (1) to mitigate sulfide-induced pipeline corrosion, souring, and detrimental health impacts of sulfide; (2) to extend the production life of conventional oil production; and (3) to improve production water recycling and efficient oil production with minimal environmental impact. These activities will be of high benefit to our industry partners (Enerplus, Yara, and Baker Hughes, a GE Company) by (1) providing a better understanding of the underlying factors driving souring and MEOR, and (2) developing enhanced technologies for preventing souring and recovering fossil energy in a sustainable manner. Further, trainees undertaking this project will contribute to the responsible development of Canada's fossil fuel resources. Overall, the project is of high benefit to the energy industry, the Canadian economy, and the general public who demand safe and reliable energy sources.

自然栖息在油藏中的微生物可能对石油和天然气工业的运营产生负面或正面的影响。不利的一面是，硫酸盐还原微生物将硫酸盐转化为硫化物，会导致水库酸化、管道腐蚀和有害的健康影响。从积极的一面来看，与油藏相关的微生物的代谢活动可能有助于可持续、提高石油采收率。基于之前的研究结果，拟议项目将重点推进 (1) 酸化控制和 (2) MEOR 技术，重点是在高温和原油存在下进行研究。在酸化控制领域，将确定微生物活动对高温或低温储层酸化的贡献。将研究新的硝酸盐和杀菌剂组合以减轻酸化，重点关注高温领域。在MEOR领域，将探索各种微生物活性，通过使用商业上可用且廉价的基质或可生物降解的油组分来促进微生物生长和活性，以提高高温和低温下的石油产量。我们还将测试现有方法的有效性，例如使用碳氢化合物或溶剂应用，以提高选定油田的石油产量。拟议项目的成果将有助于（1）减轻硫化物引起的管道腐蚀、酸化和硫化物对健康的有害影响； (2)延长常规采油的生产寿命； (3) 改善生产用水循环利用和高效石油生产，同时对环境影响最小。 这些活动将为我们的行业合作伙伴（Enerplus、Yara 和 Baker Hughes，GE 公司）带来很大好处：(1) 更好地了解驱动酸化和 MEOR 的根本因素，(2) 开发增强技术来预防以可持续的方式净化和回收化石能源。 此外，参与该项目的学员将为加拿大化石燃料资源的负责任开发做出贡献。 总体而言，该项目对能源行业、加拿大经济以及需要安全可靠能源的广大民众都有很高的效益。