Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Hydraulic fracturing (HF) of shale and other permeable rock formations to extract gas and oil is a water-intensive process that returns a significant amount of flowback and produced water (FPW). Due to the complex chemical composition of HF fluids and FPW, this process has led to public concern on the impacts of FPW disposal, spillage and spreading to regional freshwater resources, in particular to shallow groundwater aquifers. To address this, a better understanding of the chemical composition of HF fluid and FPW is needed, as well as the environmental fate properties of the chemical constituents, such as their persistence, mobility and toxicity (PMT) properties. Such research would support risk-based management strategies for the protection of regional water quality, including both the phase-out of problematic chemicals and better hydraulic safeguards against FPW contamination. This article presents recent strategies to advance the assessment and analysis of HF and FPW associated organic chemicals.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1039/d2em00034b | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Efficient Fracture Propagation Solver Based on the Displacement Discontinuity Method with Application to Fiber Optic Sensing.
ACS Omega
August 2025
CNPC Engineering Technology R & D Company Limited, Beijing 102206, People's Republic of China.
Hydraulic fracturing is essential for developing not only unconventional oil and gas reservoirs but also clean-energy resources, such as enhanced geothermal systems. Accurate simulation of fracture propagation is crucial for estimating poststimulation production. However, current approaches to calculating fracture physical parameters are often computationally inefficient.
View Article and Find Full Text PDFStudy on the mechanical properties and microscopic mechanism of xanthan gum improved red clay.
Sci Rep
August 2025
School of Civil Engineering, Architecture and Environment, Hubei University of Technology, Wuhan, 430068, China.
To mitigate the adverse ecological impacts of inorganic solidified materials on modified red clay and address the issues of low bearing capacity and extensive cracking under hydraulic erosion, this study investigates the use of low-environmental-impact materials to improve the mechanical fracturing of red clay. In this context, this study focuses on modifying red clay using an environmentally friendly biopolymer, xanthan gum (XG). Through a series of laboratory mechanical and microstructural tests, the effects of XG on the mechanical fracturing, California Bearing Ratio (CBR), and microstructural characteristics of red clay are examined.
View Article and Find Full Text PDFLimited but localized: geochemical and biodiversity impacts of shale gas extraction on soil ecosystems.
Environ Sci Process Impacts
August 2025
State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China.
The rapid global expansion of shale gas extraction has intensified scrutiny of its environmental impact, yet research on terrestrial ecosystems remains limited compared to aquatic systems. To address this gap, we investigated the Fuling shale gas field in China's Sichuan Basin-a region of intensive hydraulic fracturing activity-to evaluate effects on soil geochemistry and fauna. We quantified hydraulic fracturing-associated tracers (, electrical conductivity (EC), chloride (Cl), strontium (Sr), and barium (Ba)) across three distance gradients (10 m, 50 m, and 100 m) from extraction well pads.
View Article and Find Full Text PDFAdvancing Hydraulic Fracturing Fluids with Ascorbic Acid: A Green and Multifunctional Approach.
ACS Omega
August 2025
EXPEC Aramco Advanced Research CenterSaudi Aramco, Dhahran 31311, Saudi Arabia.
The development of high-temperature fracturing fluids is critical as exploration extends into deeper, hotter, and lower-permeability formations. Fluid stability depends on two key bonds: cross-linker-to-polymer and monomer-to-monomer bonds. While the former can be preserved using cross-linkers and delay additives, the latter remains vulnerable to oxygen radical attacks.
View Article and Find Full Text PDFMachine learning-enhanced fully coupled fluid-solid interaction models for proppant dynamics in hydraulic fractures.
Sci Rep
August 2025
Department of Computational and Applied Mechanics, Federal University of Juiz de Fora, Juiz de Fora, 36036-900, Brazil.
This study presents a hybrid modeling framework for predicting proppant settling rate (PSR) in hydraulic fracturing by integrating symbolic physics-based derivations, parametric simulations, and ensemble machine learning. Symbolic expressions were formulated using Stokes' law, drag equations, and pressure-gradient dynamics. A symbolic dataset was synthetically generated by sampling realistic physical ranges: proppant density [Formula: see text], fluid viscosity [Formula: see text], and particle diameter [Formula: see text].
View Article and Find Full Text PDF