气候变化领域集成服务门户(CCPortal): Identification of Geochemical Processes During Hydraulic Fracturing of a Shale Gas Reservoir: A Controlled Field and Laboratory Water-Rock Interaction Experiment

CCPortal

DOI	10.1029/2020GL090420
	Identification of Geochemical Processes During Hydraulic Fracturing of a Shale Gas Reservoir: A Controlled Field and Laboratory Water-Rock Interaction Experiment
	Huang T.; Li Z.; Mayer B.; Nightingale M.; Li X.; Li G.; Long Y.; Pang Z.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:20
英文摘要	A detailed study on geochemical processes following hydraulic fracturing can provide important information on the origin of solutes and potential improvement of fracturing technology. However, this remains difficult due to the low resolution of flowback water and high salinity of formation water. To fill this knowledge gap, a shale-gas well was drilled and freshwater was used to fracture the shale. In parallel, laboratory water-rock interaction experiments were conducted. The intensive sampling for flowback water and the use of multiple isotopes provided novel and detailed insights into the water-rock interactions after hydraulic fracturing. The results showed that beyond mixing processes, cation exchange, adsorption/desorption, and barite precipitation were observed both in the laboratory and field studies. Although oxidation of pyrite was observed in most of the laboratory experiments, our findings demonstrate that this process was not evident in field flowback samples that were dominated by mixing of fracturing fluids and formation water. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Fracturing fluids; Geochemistry; Laboratories; Mixing; Petroleum reservoirs; Produced Water; Pyrites; Shale gas; Adsorption/desorption; Cation exchanges; Geochemical process; Intensive sampling; Laboratory and field studies; Laboratory experiments; Shale gas reservoirs; Water rock interactions; Hydraulic fracturing; formation water; geochemistry; hydraulic fracturing; hydrocarbon reservoir; identification method; laboratory method; oxidation; precipitation (chemistry); pyrite; salinity; shale gas; water-rock interaction
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169578
作者单位	Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China; Department of Geoscience, University of Calgary, Calgary, Canada; College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, China
推荐引用方式 GB/T 7714	Huang T.,Li Z.,Mayer B.,et al. Identification of Geochemical Processes During Hydraulic Fracturing of a Shale Gas Reservoir: A Controlled Field and Laboratory Water-Rock Interaction Experiment[J],2020,47(20).
APA	Huang T..,Li Z..,Mayer B..,Nightingale M..,Li X..,...&Pang Z..(2020).Identification of Geochemical Processes During Hydraulic Fracturing of a Shale Gas Reservoir: A Controlled Field and Laboratory Water-Rock Interaction Experiment.Geophysical Research Letters,47(20).
MLA	Huang T.,et al."Identification of Geochemical Processes During Hydraulic Fracturing of a Shale Gas Reservoir: A Controlled Field and Laboratory Water-Rock Interaction Experiment".Geophysical Research Letters 47.20(2020).