ANR - Environmental baseline conditions for impact assessment of unconventional gas exploitation: advancing geochemical tracer and monitoring techniques

ANR - 非常规天然气开采影响评估的环境基线条件：先进的地球化学示踪剂和监测技术

• 批准号: 463605-2014
• 负责人: Mayer, Bernhard
• 金额: $ 12.5万
• 依托单位: University of Calgary
• 依托单位国家: 加拿大
• 项目类别: Strategic Projects - Group
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=577085
• 关键词: ANR; Environmental; baseline; conditions; impact

The recent expansion of the unconventional gas industry in North America and its potential advent in Europe has generated public concern regarding the protection of groundwater and surface water resources from contamination by stray gas, saline formation water and fracturing chemicals. A major scientific challenge and an indispensible prerequisite for environmental impact assessment in the context of unconventional gas development is the determination of the non-impacted baseline conditions against which potential environmental impacts on shallow water resources can be accurately and quantitatively tested. The objective of this Franco-Canadian NSERC-ANR project is to develop an innovative and comprehensive methodology of geochemical and isotopic characterization of the environmental baseline for water and gas samples from all three essential zones: (1) the production zone, including flowback waters, (2) the intermediate zone comprised of overlying formations, and (3) shallow aquifers and surface water systems where contamination may result from diverse natural or other human impacts. The outcome will be the establishment of a methodology based on innovative tracer and monitoring techniques for detecting and quantifying and modeling stray gas and leakage of saline formation water mixed onto flowback fluids into fresh groundwater resources and surface waters taking into account the mechanisms of fluid and gas migration. The new knowledge derived from this project will be of critical importance for ensuring the environmentally acceptable development of unconventional energy resources in Canada and Europe. Decision support and recommendations for stakeholders on meaningful baseline and monitoring programs in the context of unconventional energy ressources will be provided as final deliverable.

非常规天然气工业最近在北美的扩张及其在欧洲的可能出现，引起了公众对保护地下水和地表水资源免受杂气、含盐地层水和压裂化学品污染的关注。在非常规天然气开发背景下进行环境影响评估的一项重大科学挑战和不可或缺的先决条件是确定不受影响的基线条件，根据这些条件可以准确和定量地测试对浅水资源的潜在环境影响。这个法国-加拿大NSERC-ANR项目的目标是开发一种创新的、全面的方法，对来自所有国家的水和天然气样本的环境基线进行地球化学和同位素表征。 三个基本区域：(1)生产区，包括回流水；(2)由上覆地层组成的中间区；(3)浅层含水层和地表水系统，污染可能由各种自然或其他人为影响造成。成果将是建立一种基于创新示踪剂和监测技术的方法，以检测和量化混合到回流流体中的杂散气体和咸水地层水泄漏到淡水地下水资源和地表水中，并对其进行建模，同时考虑到流体和气体的迁移机制。从该项目中获得的新知识对于确保加拿大和欧洲在环境上可接受的非常规能源开发至关重要。决策支持和建议 关于非常规能源背景下有意义的基线和监测方案的利益攸关方将作为最终交付成果提供。