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减少酸盐的微生物防止油田产生的储水池的酸化

Gabrielle Scheffer¹, Jayne Rattray¹, Paul Evans²

¹Geomicrobiology Group, Department of Biological Sciences, University of Calgary, Calgary, Alberta T2N 1N4, Canada.

FEMS microbiology ecology

|April 28, 2025

概括

在油田储水池中添加酸盐减少了生产硫化物的微生物. 这种方法通过控制微生物活动和防止有害硫化物积累,有助于水回收.

科学领域:

环境微生物学环境微生物学
石油工程是石油工程中的一个.
水处理处理水的方法

背景情况:

油田操作,特别是水力压裂,产生高盐度的产水.
这些水在重新注入之前被储存在表面池中,造成硫化物积聚的风险.
硫化物生产可能会在油田水资源管理中造成运营问题和环境问题.

研究的目的:

研究直接酸盐添加剂在减轻油田储水池中硫化物产生的有效性.
了解微生物社区在现实世界池环境中对酸盐应用的反应.
评估酸盐对关键化学参数和微生物代谢途径的影响.

主要方法:

酸盐被添加到一个高度的水储池中.
微生物社区的组成被分析使用DNA测序在4周的时间.
基因组组合基因组 (MAGs) 被重建以确定微生物的功能.
监测了硫酸盐,酸盐,亚酸盐,亚酸盐和总无机碳水平.

主要成果:

酸盐的添加导致了硫酸盐降解微生物的减少.
硫酸盐水平保持稳定,而酸盐和酸盐在添加后波动.
药品销售许可证显示,酸盐降低生物和最小硫化物生产途径占主导地位.
在酸盐耗尽后,乙酸盐显著减少,自型微生物增加.

结论:

直接添加酸盐有效控制油田储中的硫化物产生微生物.
添加酸盐会改变微生物群落的结构和功能,有利于酸盐减少而不是硫酸盐减少.
该战略通过减轻与生产的储水相关的运营和环境风险,支持水回收工作.

关键词:

自营微生物自营微生物液压压裂是指水力压裂的方法.减少酸盐的微生物生产的水可重复使用.储存池储存池这些硫化物氧化的微生物.

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