Towards improved characterization of the fate and impact of hydraulic fracturing chemicals to better secure regional water quality

Jin, Bong‐Soo; Han, Min; Huang, Can; Arp, Hans Peter H.; Zhang, Gan

doi:10.1039/d2em00034b

Cited by 7 publications

(4 citation statements)

References 47 publications

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“…Mitigation measures for such impacts include return-flow fluid management, which involves the proper handling of return-flow fluids containing potentially contaminating chemicals and materials. Research suggests that reusing and treating these fluids can reduce the risk of water contamination [137][138][139][140][141][142]. Additionally, well monitoring, which entails the rigorous monitoring of wells before, during, and after the fracking operation, can help identify and prevent potential leaks and contamination [143][144][145][146][147].…”

Section: Resultsmentioning

confidence: 99%

Analysis of Potential Environmental Risks in the Hydraulic Fracturing Operation in the “La Luna” Formation in Colombia

Guerrero-Martin,

Szklo

2024

Sustainability

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This article presents an in-depth analysis of potential environmental risks associated with hydraulic fracturing operations within the “La Luna” formation in Colombia. Using the Conesa methodology, it assesses the environmental impacts of unconventional reservoir production in Colombia, including water usage, chemical additives, air emissions, and the potential for groundwater contamination. This study incorporates comprehensive data on geological characteristics, operational procedures, and environmental conditions specific to the region. This analysis highlights the need for a proactive approach to managing potential environmental risks associated with hydraulic fracturing in Colombia. The findings underscore the importance of implementing robust regulatory measures, comprehensive monitoring systems, and the industry’s best practices to mitigate and prevent adverse environmental impacts. This research contributes to the ongoing global dialogue on the environmental implications of hydraulic fracturing in regions with sensitive ecological conditions. The environmental impacts of unconventional reservoirs are widely recognized as a general consensus; however, the absence of applied studies with the rigor of an explicit methodology in Andean countries highlights the need for specific research in this region. This article addresses this gap by proposing a detailed and structured methodology to assess and mitigate environmental impacts in unconventional reservoirs. Emphasizing the importance of knowing the characteristics of reservoir fluids, this research highlights that this critical information is only revealed by drilling exploration wells and PVT (pressure, volume, and temperature) analysis. Obtaining this data is crucial for shaping specific mitigation measures, thus allowing for the formulation of a robust environmental management plan tailored to the conditions of the reservoirs in the Andean region. This precise and contextualized approach contributes to closing the knowledge gap and promotes more sustainable practices in the exploitation of unconventional reservoirs in this specific geographical context. The methodology used in this study proved its effectiveness by accurately quantifying the risks associated with each of the environmental alterations inherent to the hydraulic fracturing process in the La Luna formation. The results obtained allowed for the identification of the critical points most susceptible to environmental impacts, serving as a solid basis for the elaboration of an environmental management plan. This strategic approach not only enabled the delineation of specific mitigation measures but also facilitated the selection of the most appropriate locations for the implementation of the plan, maximizing the effectiveness of corrective actions. It is noteworthy that the successful application of the Conesa methodology in this unconventional reservoir context evidences the versatility and applicability of this approach, consolidating it as a valuable tool for environmental assessment and effective planning in the hydraulic fracturing industry.

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Section: Resultsmentioning

confidence: 99%

Analysis of Potential Environmental Risks in the Hydraulic Fracturing Operation in the “La Luna” Formation in Colombia

Guerrero-Martin,

Szklo

2024

Sustainability

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“…In recent years, the advancements of horizontal drilling and hydraulic fracturing technologies have promoted the extraction of shale gas. − However, shale gas exploration raised concerns on regional water resources due to the usage of large amounts of water and synthetic chemicals for drilling and hydraulic fracturing. − As an essential part of the drilling operation, the drilling fluids contain various organic and inorganic compounds from the solid phase, liquid phase, and chemical treatment agent. ,− Due to reliable shale inhibition and excellent lubricity, oil-based drilling fluids are an essential component in shale gas exploration. , However, oil-based drilling fluids were often considered to be environmentally hazardous due to their high toxicity . Accidental well leakage might release chemicals in the drilling fluids and later contaminate groundwater.…”

Section: Introductionmentioning

confidence: 99%

“…Recently, an increasing number of studies ,,− have focused on risks and hazards of hydraulic fracturing fluids and flowback fluids. For instance, Huang et al identified PMT/vPvM substances present in the flowback and produced water (FPW) from hydraulic fracturing of shale gas production .…”

Section: Introductionmentioning

confidence: 99%

Identifying Candidate Persistent, Mobile, and Toxic (PMT) and Very Persistent and Very Mobile (vPvM) Substances in Shale Gas Drilling Fluids by Combining Nontarget Analysis and Machine Learning Model

Wang,

Han,

Jin

2024

Environ. Sci. Technol. Lett.

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Shale gas extraction has raised environmental concerns on regional water resources. Horizontal drilling is a process in which drilling fluids containing complex organic and inorganic chemicals are intensively applied. Accidental spill and improper disposal of drilling fluids and related wastes might pose risks to surrounding groundwater environment. Given regional ground water quality, persistent, mobile, and toxic (PMT) and very persistent and very mobile (vPvM) substances should be of particular attention. However, recent research rarely focused on chemical compositions of drilling fluids, and the harmful PMT/ vPvM substances in drilling fluids remain unknown. In this study, we utilized a nontarget screening strategy to detect and identify the organic compounds in drilling fluids collected in southwest China. Specifically, a total number of 371 compounds were detected in drilling fluids, and the main fraction of the compounds was alicyclic compounds. Later, an original machine learning model developed by us was applied to identify the candidate PMT/vPvM substances among the detected organic compounds. Our study identified 29 candidate PMT/vPvM substances, thus providing a list of prioritized substances for early warning and risk assessment of regional groundwater contamination.

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“…It plays a role in supporting the roof when working underground and maintaining the safe working space for the mining face. Therefore, the stability and reliability of the hydraulic support is an important factor to ensure the safe and efficient production of the working face [1][2][3]. The column has been service for a long time in the environment of high stress, high humidity and containing corrosive media such as sulfur and phosphorus [4].…”

Section: Introductionmentioning

confidence: 99%

Effect of laser powers on the mechanical properties 27SiMn steel with Inconel 718 cladding coatings

Shu

Heng

et al. 2022

Mater. Res. Express

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In order to know the influence of laser power on the steel (27SiMn) used for repairing the column with Inconel 718 powder materials, and to obtain the optimal laser power parameters with the best mechanical properties of cladding layer, the microstructure, tensile properties and fracture morphology of the Inconel 718 alloyunder threelaser powers (1800 W, 2100W and 2400 W)were investigated by using the single-factor variable method, keeping the scanning speed, powder feeding amount, defocus amountand spot diameter unchaged. The results show that with increase of laser power the mechanical properties of the Inconel 718 alloy coating prepared on the surface for the column steel gradually decreased, and the mechanical properties were the best when the laser power is 1800 W. The yield strength of Inconel 718 alloy coating prepared at 1800 W was 61.7% higher than that of the substrate, and its value is 970 MPa. The elongation is reduced by 50% compared with the substrate, and its value is 7%. The microstructure of 27SiMn steel with cladding coating is (Ni, Fe, Cr) phase and Ni3Fe phase, and the microstructure of the coating is mainly composed of uniform cellular crystals. This study provides a valuable reference for the additive manufacturing of industrial materials of 27SiMn steel with laser-cladding coating.

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Towards improved characterization of the fate and impact of hydraulic fracturing chemicals to better secure regional water quality

Abstract: New approaches to better characterize chemical contamination from hydraulic fracturing of shale and other permeable rock formations for improved risk-based management are presented.

Cited by 7 publications

References 47 publications

Analysis of Potential Environmental Risks in the Hydraulic Fracturing Operation in the “La Luna” Formation in Colombia

Analysis of Potential Environmental Risks in the Hydraulic Fracturing Operation in the “La Luna” Formation in Colombia

Identifying Candidate Persistent, Mobile, and Toxic (PMT) and Very Persistent and Very Mobile (vPvM) Substances in Shale Gas Drilling Fluids by Combining Nontarget Analysis and Machine Learning Model

Effect of laser powers on the mechanical properties 27SiMn steel with Inconel 718 cladding coatings

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