Environmental impact of hydraulic fracturing on groundwater by isotope composition and hydrochemistry

IF 2.8 4区环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES

Environmental Earth Sciences Pub Date : 2024-10-03 DOI:10.1007/s12665-024-11868-9

Zhao Li, Zujiang Luo

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引用次数: 0

Abstract

Hydraulic fracturing is widely applied for unconventional energy to improve production capacity. But concerns exist about the potential negative impacts of hydraulic fracturing on the environment. Previous researches evaluated the impact of hydraulic fracturing on the environment by water quality monitoring qualitatively. Some numerical models were estimated to study it quantitatively. But there is uncertainty in the acquisition of mechanical parameters of deep rock. This study presents a statistical model for studying the environmental impact of hydraulic fracturing on the groundwater in the region. The contribution ratio of CBM co-produced water is calculated to estimate the containment degree by End Member Mixing Analysis. In order to obtain the end members purely, Vertex Component Analysis and Principal Components Analysis are used to extract the end members. The model is applied to Qinshui Basin, China. It was shown that hydraulic fracturing doesn’t damage the aquiclude in the region. But shallow groundwater was polluted by CBM co-produced water in the Shizhuang Block. The mixing path of CBM co-produced water is from the surface to the aquifer.

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通过同位素组成和水化学分析水力压裂对地下水的环境影响

水力压裂法被广泛应用于非常规能源领域，以提高生产能力。但水力压裂法对环境的潜在负面影响令人担忧。以往的研究通过水质监测对水力压裂对环境的影响进行了定性评估。一些数值模型对其进行了定量研究。但深层岩石力学参数的获取存在不确定性。本研究提出了一个统计模型，用于研究水力压裂对该地区地下水的环境影响。通过末端成员混合分析法，计算煤层气共生水的贡献率，以估算封堵程度。为了纯粹地获得末端成员，使用顶点成分分析和主成分分析来提取末端成员。该模型应用于中国沁水盆地。结果表明，水力压裂法不会破坏该地区的含水层。但石庄区块的浅层地下水受到煤层气共生水的污染。煤层气共生水的混合路径是从地表到含水层。

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来源期刊

Environmental Earth Sciences 环境科学-地球科学综合

CiteScore

5.10

自引率

3.60%

发文量

494

审稿时长

8.3 months

期刊介绍： Environmental Earth Sciences is an international multidisciplinary journal concerned with all aspects of interaction between humans, natural resources, ecosystems, special climates or unique geographic zones, and the earth: Water and soil contamination caused by waste management and disposal practices Environmental problems associated with transportation by land, air, or water Geological processes that may impact biosystems or humans Man-made or naturally occurring geological or hydrological hazards Environmental problems associated with the recovery of materials from the earth Environmental problems caused by extraction of minerals, coal, and ores, as well as oil and gas, water and alternative energy sources Environmental impacts of exploration and recultivation – Environmental impacts of hazardous materials Management of environmental data and information in data banks and information systems Dissemination of knowledge on techniques, methods, approaches and experiences to improve and remediate the environment In pursuit of these topics, the geoscientific disciplines are invited to contribute their knowledge and experience. Major disciplines include: hydrogeology, hydrochemistry, geochemistry, geophysics, engineering geology, remediation science, natural resources management, environmental climatology and biota, environmental geography, soil science and geomicrobiology.