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.

自然居住的油储库的微生物可能对石油和天然气行业的运营产生负面贡献。在负面，将硫酸盐转化为硫化物的硫酸盐还原的微生物有助于储层酸化，管道腐蚀和有害的健康影响。从积极的一面来看，与储层相关的微生物的代谢活性可能有助于可持续的，增强的石油回收率。在先前的发现的基础上，拟议的项目将重点放在（1）控制酸和（2）MEOR技术的控制上，重点是在高温和原油存在下进行研究。在酸控制的领域，将确定微生物活性在高温下或低温下的储层酸性贡献。将检查新的硝酸盐和杀菌剂组合，以减轻酸化，重点是高温场。在Meor地区，将探索各种微生物活性，以通过使用商业上可用和廉价的底物或可生物降解的油成分来促进微生物生长和活性，从而在高温和低温下增强石油生产。我们还将测试现有方法的疗效，例如使用烃或溶剂应用来增强所选油田的石油生产。拟议项目的结果将有助于（1）减轻硫化物的管道腐蚀，酸味和有害的健康影响； （2）延长常规石油生产的生产寿命； （3）改善生产水回收利用和有效的石油生产，而环境影响最小。 这些活动将对我们的行业合作伙伴（Enerplus，Yara和Baker Hughes，GE Company）具有很高的好处，该活动将通过（1）更好地理解驱动酸味和Meor的潜在因素，以及（2）开发增强的技术，以防止以可持续的方式防止酸化和恢复化石能量。 此外，从事该项目的学员将有助于对加拿大化石燃料资源的负责发展。 总体而言，该项目对能源行业，加拿大经济以及要求安全可靠的能源的公众有益。