Interactions between microbial communities and polymers in hydraulic fracturing water cycle: A review

被引:0
作者
Zhong, Cheng [1 ,2 ]
Chen, Rong [1 ,2 ]
He, Yuhe [3 ,4 ]
Hou, Deyi [5 ]
Chen, Fu [1 ]
机构
[1] Southwest Petr Univ, Coll Chem & Chem Engn, Chengdu 610500, Sichuan, Peoples R China
[2] Oil & Gas Field Appl Chem, Key Lab Sichuan Prov, Chengdu 610500, Sichuan, Peoples R China
[3] City Univ Hong Kong, Sch Energy & Environm, Kowloon Tong, Hong Kong, Peoples R China
[4] City Univ Hong Kong, State Key Lab Marine Pollut, Kowloon Tong, Hong Kong, Peoples R China
[5] Tsinghua Univ, Sch Environm, Beijing, Peoples R China
关键词
Sustainability; Oil and gas; Hydraulic fracturing; Microbial communities; Polymers; EARLY-LIFE STAGES; ANIONIC POLYACRYLAMIDE; GUAR GUM; DEGRADING BACTERIA; TEMPORAL-CHANGES; DEGRADATION; FLUIDS; BIODEGRADATION; CELLULOSE; GEOCHEMISTRY;
D O I
10.1016/j.scitotenv.2024.174412
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Hydraulic fracturing (HF) has substantially boosted global unconventional hydrocarbon production but has also introduced various environmental and operational challenges. Understanding the interactions between abundant and diverse microbial communities and chemicals, particularly polymers used for proppant delivery, thickening, and friction reduction, in HF water cycles is crucial for addressing these challenges. This review primarily examined the recent studies conducted in China, an emerging area for HF activities, and comparatively examined studies from other regions. In China, polyacrylamide (PAM) and its derivatives products became key components in hydraulic fracturing fluid (HFF) for unconventional hydrocarbon development. The microbial diversity of unconventional HF water cycles in China was higher compared to North America, with frequent detection of taxa such as Shewanella , Marinobacter , and Desulfobacter . While biodegradation, biocorrosion, and biofouling were common issues across regions, the mechanisms underlying these microbe-polymer interactions differed substantially. Notably, in HF sites in the Sichuan Basin, the use of biocides gradually decreased its efficiency to mitigate adverse microbial activities. High-throughput sequencing proved to be a robust tool that could identify key bioindicators and biodegradation pathways, and help select optimal polymers and biocides, leading to more efficient HFF systems. The primary aim of this study is to raise awareness about the interactions between microorganisms and polymers, providing fresh insights that can inform decisions related to enhanced chemical use and biological control measures at HF sites.
引用
收藏
页数:12
相关论文
共 31 条