Distribution Characteristics and Formation Mechanisms of Highly Mineralized Groundwater in the Hetao Plain, Inner Mongolia

Dong, Qin; Li, Jincheng; Cheng, Yafang; Ren, Yu; Zhao, Dong; Wang, Dong; Sun, Xiaoyang; Cao, Wengeng

doi:10.3390/w14203247

Cited by 4 publications

(4 citation statements)

References 38 publications

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“…The classification method of formation water used in this research is mainly based on the Sulin water classification method. According to the Sulin classification method [29,30], the chemical composition of groundwater can be linked with its natural environmental conditions, and different geological environments can be represented by different water types [31,32].…”

Section: Composition Analysis Of Injection/formationmentioning

confidence: 99%

Experimental and Statistical Study on Wellbore Scaling Mechanisms and Characteristics for Huanjiang Oilfield

Zhang

Wang²,

Zhang³

et al. 2022

Geofluids

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Wellbore scaling is a complex and one of the common problems encountered during the depletion of an oilfield. Many studies have been conducted on general scale mechanisms, scale predictions, and removal measurements. However, the detailed study of the scaling characteristics and mechanisms in Huanjiang oilfield is limited. The objective of this work is to investigate the scaling mechanisms and characteristics to provide guidance for scale inhibitor selection, synthesis, and testing in the Huanjiang oilfield. Ion chromatography (IC) was used to test the composition of 100 water samples, and energy dispersive spectroscopy (EDS), scanning electron microscope (SEM), and X-ray diffraction (XRD) were utilized to analyze the composition of 120 wellbore scale samples that were collected from the Huanjiang oilfield. The results show that the water types of formation and groundwater are CaCl2 and Na2SO4, respectively. The oil wells produced from Chang 4 + 5 , Chang 6, and Chang 8 reservoir layers in the development of Yanchang group are mainly calcium-based scale (CaCO3 and CaSO4), supplemented by wax deposition scale, corrosion scale, and NaCl and KCl crystal scale. In contrast, the oil wells in Yan’an group (Yan 6, Yan 7, Yan 8, Yan 9, and Yan 10 reservoir layers) are mainly wax deposition scale and corrosion scale.

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Section: Composition Analysis Of Injection/formationmentioning

confidence: 99%

Experimental and Statistical Study on Wellbore Scaling Mechanisms and Characteristics for Huanjiang Oilfield

Zhang

Wang²,

Zhang³

et al. 2022

Geofluids

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“…High salinity is also observed in the shallow aquifers of the Nile River delta (Elewa & El Nahry, 2009) and arid basins of the Chilean Altiplano (Hernández‐López et al, 2014). The Hetao plain located in Inner Mongolia, China has also experienced widespread soil salinization as a result of excessive soil mineralization and the presence of a shallow WT (Dong et al, 2002; Li et al, 2020; Wang et al, 2004; Zhang et al, 2020). A number of studies examined solute transport patterns for different surface evaporation and water application conditions (Ibrahimi et al, 2014; Öztürk & Özkan, 2002, 2004; Rose et al, 2005; Wang et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Impact of soil compaction and irrigation practices on salt dynamics in the presence of a saline shallow groundwater: An experimental and modelling study

Nick,

Copty,

Saygın

et al. 2024

Hydrological Processes

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Soil salt accumulation is a widespread problem leading to diminished crop yield and threatening food security in many regions of the world. The soil salinization problem is particularly acute in areas that lack adequate soil water drainage and where a saline shallow water table (WT) is present. In this study, we present laboratory‐scale column experiments, extending over a period of more than 400 days that focus on the processes contributing to soil salinization. We specifically examine the combined impact of soil compaction, surface water application model and water quality on salt dynamics in the presence of a saline shallow WT. The soil columns (60 cm height and 16 cm diameter) were packed with an agricultural soil with bulk densities of 1.15 and 1.34 g/cm−3 for uncompacted and compacted layers, respectively, and automatically monitored for water content, salinity and pressure. Two surface water compositions are considered: fresh (deionized, DI) and saline water (~3.4 mS/cm). To assess the sensitivity of compaction on salt dynamics, the experiments were numerically modelled with the HYDRUS‐1D computer program. The results show that the saline WT led to rapid salinization of the soil column due to capillarity, with the salinity reaching levels much higher than that at the WT. However, compaction layer provided a barrier that limited the downwards moisture percolation and solute transport. Furthermore, the numerical simulations showed that the application of freshwater can temporarily reverse the accumulation of salts in agricultural soils. This irrigation strategy can help, in the short‐term, alleviate soil salinization problem. The soil hydraulic properties, WT depth, water quality, evaporation demand and the availability of freshwater all play a role in the practicability of such short‐term solutions. The presence of a saline shallow WT would, however, rapidly reverse these temporary measures, leading to the recurrence of topsoil salinization.

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“…Their research shows that considerable spatial and temporal variability was found in the seasonal groundwater levels of the two aquifers, a trend of seawater intrusion, and an urgent need for appropriate measures for groundwater protection. Other scholars, such as Dong Q, have conducted systematic studies on the characteristics of groundwater chemistry in the Hetao Plain, the lower Yangtze River alluvial plain, and the Sichuan basin, revealing the groundwater genesis and evolutionary processes [20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Hydrochemical Characteristics and Formation Mechanism of Groundwater in Qingdao City, Shandong Province, China

Gang

Jia²,

Deng

et al. 2023

Water

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The coastal area is a major area of socio-economic development and the most active zone for human activities. With the rapid development of the economy and the strengthening of urban construction, the groundwater environmental problems in coastal areas are increasingly prominent. It is significant to investigate the groundwater chemical characteristics, hydrochemical types, and the factors that influence groundwater chemistry for water resources protection and groundwater resources development. In this paper, 48 groundwater samples and 5 surface water samples from the study area were analyzed with statistical analysis, Piper diagram, Gibbs diagram, mineral saturation index method, and the ionic scale factor, and explored the factors that influence groundwater chemistry. The modified Nemerow index method was also applied to evaluate the groundwater. The results show that the groundwater in the study area is neutral to weakly alkaline (average pH = 7.0~8.0). The groundwater chemical types are mainly Cl·SO4-Na and SO4·Cl-Ca·Mg. Hydrochemistry is mainly influenced by rock weathering and evaporative concentration. TDS was strongly correlated with TDS, Na+, Mg2+, K+, Ca2+, Cl−, SO42−, and the saturation index showed a gradual increase along the groundwater drainage flow path, it indicates that the main groundwater ions originate from the dissolution of halite, sulfate, and carbonate. Combining GIS technology and the kriging spatial interpolation method, we obtained the current situation map of groundwater quality in Laoshan District. The groundwater quality is mainly III water, and the overall water quality is good; IV and V water is mainly distributed in the middle and lower reaches of rivers, distributed in a belt pattern along the coastline. It is mainly influenced by both the human factor and seawater intrusion. It is significant for the utilization of groundwater resources and the management of seawater intrusion in the Laoshan District. In addition, the proposed research ideas and methods provide a reference for the study of groundwater genesis in other coastal areas in the world.

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Distribution Characteristics and Formation Mechanisms of Highly Mineralized Groundwater in the Hetao Plain, Inner Mongolia

Cited by 4 publications

References 38 publications

Experimental and Statistical Study on Wellbore Scaling Mechanisms and Characteristics for Huanjiang Oilfield

Experimental and Statistical Study on Wellbore Scaling Mechanisms and Characteristics for Huanjiang Oilfield

Impact of soil compaction and irrigation practices on salt dynamics in the presence of a saline shallow groundwater: An experimental and modelling study

Hydrochemical Characteristics and Formation Mechanism of Groundwater in Qingdao City, Shandong Province, China

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