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Collaborative Research: Ultrahigh-Resolution Analyses of Organic Constituents in Shale Well Fluids and their Environmental Persistence

合作研究：页岩井流体中有机成分及其环境持久性的超高分辨率分析

基本信息

批准号：
1823069
负责人：
Paula Mouser
金额：
$ 8.73万
依托单位：
University of New Hampshire
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2018
资助国家：
美国
起止时间：
2018-01-01 至 2020-06-30
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1823069&HistoricalAwards=false
关键词：
Collaborative Research Ultrahigh Resolution Analyses

项目摘要

1604475 / 1604432Gonsior / MouserHorizontal drilling coupled to hydraulic fracturing well completion techniques has opened up vast shale gas resources in the US and has become increasingly important as an energy source both in the US and globally. In 2012, shale gas was the largest source of US natural gas, contributing 9.7 trillion cubic feet of natural gas, 40 % of the total natural gas production; however, this technique requires the use of large volumes of water combined with a variable combination of chemical additives, each composed of numerous constituents that are primarily organic-based. This project focuses on the characterization of fracking fluids and their potential to adversely impact both surface and ground water.This study will be the first to determine a detailed molecular characterization of organic matter in shale well fluids and track carbon composition evolution during the first three years of operation at a scientific test well site in West Virginia using ultrahigh resolution mass spectrometry. This unique opportunity will generate a comprehensive database of organic constituents entering an unconventional shale gas well drilled into the Marcellus shale and returning to the surface after increasing residence time within the formation. Additionally, the environmental fate will be assessed for potentially hazardous organic compounds present in shale wastewaters. This study will aid in evaluations of potential health impacts of spills during different stages of well operation. It will further guide evaluations of wastewater treatability and solutions for surface spill responses. The goals of the project are: (1) To characterize in detail the molecular composition of shale gas fluids throughout the first three years of a scientific well operation using targeted and non-targeted analytical methods; (2) To evaluate the photochemical and microbial degradation of organic constituents along with detailed molecular characterization of changes including the production of metabolites; (3) To undertake meaningful laboratory-based experiments to understand microbial degradation pathways and to evaluate a potential increase in toxicity, and, (4) To study the photochemical degradation of organic compounds in hydraulic fracturing fluids. The diversity, toxicity and persistence of organic constituents in shale wastewaters have a direct impact on communities relying on water resources in areas being developed for unconventional shale energy. Detailed analyses of the transformation pathways of organic chemical additives and organics leached from shale will guide a scientifically based discussion about the potential health impacts accidental surface spills and subsurface contamination may have to surrounding ecosystems. Graduate and undergraduate students will have the unique opportunity to participate in research and training during drilling and fracturing campaigns planned at the Marcellus Shale Energy Environmental Laboratory, located in West Virginia, over the coming years. This will engage students in direct communication, observation, and sampling efforts during different phases of unconventional shale gas development through the established university-industry collaboration. Research education will focus on a graduate student located at University of Maryland Center for Environmental Science, Chesapeake Biological Laboratory (CBL), a graduate student at Ohio State University as well as undergraduate internships over the summer months (Sea Grant Maryland Research Experiences for Undergraduates (REU). The CBL Visitor Center will host displays about the importance of shale well fluids related water issues and wastewater treatment. In partnership with the CBL visitor center here in Solomons, Maryland, we will host a summer workshop for 7-12th grade school students.

1604475/1604432 Gonsior/Mouser水平钻井与水力压裂成井技术相结合，在美国开发了大量的页岩气资源，在美国和全球作为一种能源变得越来越重要。2012年，页岩气是美国天然气的最大来源，贡献了9.7万亿立方英尺的天然气，占天然气总产量的40%；然而，这项技术需要使用大量的水和可变的化学添加剂组合，每个添加剂都由许多主要基于有机的成分组成。该项目的重点是水力压裂液的特性及其对地表水和地下水的不利影响。这项研究将首次确定页岩井液中有机物的详细分子特性，并使用超高分辨率质谱仪跟踪西弗吉尼亚州科学测试井场运行的头三年期间的碳组成演变。这一独特的机会将产生一个全面的有机成分数据库，其中包括进入马塞卢斯页岩钻探的非常规页岩气井，并在增加地层停留时间后返回地面。此外，还将评估页岩废水中存在的潜在危险有机化合物的环境命运。这项研究将有助于评估油井作业不同阶段漏油对健康的潜在影响。它将进一步指导对废水可处理性的评估和针对表面溢出反应的解决方案。该项目的目标是：(1)使用有针对性和非针对性的分析方法，详细描述科学钻井作业头三年页岩气流体的分子组成；(2)评估有机物的光化学和微生物降解，以及变化的详细分子特征，包括代谢物的产生；(3)开展有意义的实验室实验，以了解微生物降解途径和评估毒性的潜在增加；以及(4)研究水力压裂液中有机化合物的光化学降解。页岩废水中有机成分的多样性、毒性和持久性对正在开发非常规页岩能源的地区依赖水资源的社区有直接影响。对页岩中有机化学添加剂和有机物转化途径的详细分析将指导一场基于科学的讨论，讨论意外的地表泄漏和地下污染可能对周围生态系统造成的潜在健康影响。未来几年，位于西弗吉尼亚州的马塞卢斯页岩能源环境实验室计划开展钻探和压裂活动，研究生和本科生将有独特的机会参与研究和培训。这将使学生通过已建立的大学与行业合作，在非常规页岩气开发的不同阶段进行直接交流、观察和采样。研究教育将侧重于位于马里兰大学环境科学中心、切萨皮克生物实验室(CBL)的研究生、俄亥俄州立大学(Ohio State University)的研究生以及夏季几个月的本科生实习(面向本科生的海洋赠款马里兰研究经验(Sea Grant Marland Research Experience，REU))。CBL访客中心将举办关于页岩井液重要性的展览，与水问题和废水处理有关。我们将与马里兰州所罗门的CBL游客中心合作，为7-12年级的学生举办暑期工作坊。

项目成果

期刊论文数量（3）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Organic sulfur fingerprint indicates continued injection fluid signature 10 months after hydraulic fracturing

有机硫指纹表明水力压裂后 10 个月持续注入流体特征

DOI：
10.1039/c8em00331a
发表时间：
2019
期刊：
Environmental Science: Processes & Impacts
影响因子：
0
作者：
Luek, Jenna L.;Harir, Mourad;Schmitt-Kopplin, Philippe;Mouser, Paula J.;Gonsior, Michael
通讯作者：
Gonsior, Michael

High total dissolved solids in shale gas wastewater inhibit biodegradation of alkyl and nonylphenol ethoxylate surfactants