与页岩气共同产生的废水驱动地下水的轻微区域盐化
Samuel W Shaheen1, Tao Wen2, Zhong Zheng3
1Department of Geosciences, Pennsylvania State University, University Park, Pennsylvania 16802, United States.
Environmental science & technology
|September 25, 2024
概括
非传统的石油和天然气开发与地下水中的盐和盐水增加有关,特别是在井口附近. 严格的废水管理对于减轻这些对水质的影响至关重要.
科学领域:
- 环境科学 环境科学
- 水文地质学 水文地质学
- 地质化学 地质化学
背景情况:
- 非传统的石油和天然气 (UOG) 开发,包括水力压裂,引发了对地下水污染的担忧.
- 鉴定污染源是具有挑战性的,因为它们与其他潜在污染物共处.
研究的目的:
- 调查马塞勒斯页岩地区的UOG开发和地下水质量之间的关系.
- 确定UOG活动和相关废水对盐相关元素如和的影响.
主要方法:
- 分析了来自马塞卢斯页岩的大量 (约29,000) 公开可用的地下水质量数据.
- 在UOG井附近区域增加和度的统计评估.
- 与UOG井密度,泄漏违规行为和废水堆积的相关性分析.
主要成果:
- 在UOG开发的1公里范围内观察到地下水中的和度的小区域增加.
- 较高的度与UOG井的邻近和密度相关.
- 与泄漏违规行为和废水堆积相关的度增加更为明显,即使考虑到其他盐源.
结论:
- 乌格发展似乎有助于增加区域地下水中的盐度,主要是由于废水管理问题而不是水力压裂本身.
- 调查结果强调,在所有石油和天然气运营中,迫切需要强有力的废水管理实践.
- 有效的废水处理监管和监督对于保护地下水资源至关重要.
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