RAPID, GOALI: Evaluating Groundwater Quality Impacts of Shale Gas Extraction within the Marcellus Shale Play

RAPID、GOALI：评估 Marcellus 页岩区页岩气开采对地下水质量的影响

• 批准号: 1504430
• 负责人: James Saiers
• 金额: $ 15.12万
• 依托单位: Yale University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2014
• 资助国家: 美国
• 起止时间: 2014-12-01 至 2017-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1504430&HistoricalAwards=false
• 关键词: RAPID; GOALI; Evaluating; Groundwater; Quality

The question "Does shale gas extraction lead to contamination of freshwater aquifers by methane, deep-formation brines, or frac-water chemicals?" is a topic of considerable public and scientific interest and the debate to date has taken place within a fundamental lack of data and cooperation. This study begins with a cooperative arrangement between Yale and an industry partner that will facilitate the exchange of knowledge and data between industry and university scientists and will lead to an assessment of water quality concerns stemming from shale gas development. The study directly addresses the issue of an established predrilling baseline. The study will improve our knowledge of drilling as an initiating mechanism for cross formational flow of water, brines and gas. The study improves upon previous knowledge with: (i) time series data on groundwater quality to be collected before gas wells are drilled, enabling natural variations in shallow groundwater chemistry to be distinguished from a shale gas effect; (ii) data on water quality and groundwater flow to be measured throughout all stages of shale gas development and (iii) monitoring locations to be chosen strategically to take into account known locations of gas well laterals, rather than sampling only from drinking water wells that are located randomly, without consideration of hydrology and potential sources of water quality impairment. The project will provide fundamental research on drilling as a means of initiating cross formational subsurface flow.

问题“页岩气开采是否会导致甲烷、深层盐水或压裂水化学品污染淡水含水层？" 这是一个公众和科学界非常感兴趣的话题，迄今为止的辩论是在基本缺乏数据和合作的情况下进行的。 这项研究始于耶鲁大学和一个行业合作伙伴之间的合作安排，这将促进行业和大学科学家之间的知识和数据交流，并将导致对页岩气开发引起的水质问题进行评估。 这项研究直接涉及确定钻前基线的问题。 这项研究将提高我们对钻井作为水、盐水和气体跨层流动的启动机制的认识。 这项研究改进了以前的知识：（一）时间序列数据的地下水质量之前收集的天然气威尔斯井钻，使自然变化的浅层地下水化学从页岩气的影响区分;（ii）在页岩气开发的所有阶段测量的水质和地下水流量数据;从战略上选择监测地点，考虑到已知的气井水井位置，而不是仅从随机分布的饮用水威尔斯井中取样，而不考虑水文和水质损害的潜在来源。 该项目将提供关于钻探的基础研究，作为启动跨地层地下流动的一种手段。