Fractured Aquifers(破裂的含水层)研究综述
Fractured Aquifers 破裂的含水层 - In all models, the extent of fractured aquifers, clay soils, non-aquifers, and crop cover in catchments, catchment topography and aridity are significant or important natural covariates in explaining BFI. [1] The results revealed that (temporarily) saturated fissure networks in the phreatic zone and the epikarst may play an important role in N turnover during the recharge of fractured aquifers. [2] ABSTRACT Inversion simulations have been applied to reconstruct the spatial variability of the hydraulic characteristics of fractured aquifers. [3] We propose that fractured aquifers with shallow water tables (or even surface water) existed at the time of both eruptions and interacted explosively with the magmas. [4] Considering the complexity of the environment and the global use of groundwater from fractured aquifers, this work contributed by discriminating geospatial parameters to decrease the exploratory risk in CBAS. [5] A total of 41 water samples including groundwater from the alluvial and fractured aquifers as well as surface water were collected and analyzed for major and trace elements during the wet and dry seasons of 2015. [6] The performance assessment revealed that HT with the proposed randomized binary prior could be used to recover fracture-connectivity and to predict drawdowns in fractured aquifers with reasonable accuracy, when compared to a conventional pilot-point inversion scheme. [7] The fractured aquifers have complicated physical and hydrogeological properties due to fractures and their geometries. [8] Fractured aquifers are known to be very heterogeneous with complex flow path geometries. [9] A fractal advection-dispersion equation and a fractional space-time advection-dispersion equation have been developed to improve the simulation of groundwater transport in fractured aquifers. [10] The petrographic study consisted of the description of rock outcrops and the observation of rock samples under the microscope to determine the nature of the bedrock in the fractured aquifers. [11] Laboratory scale experiments and numerical modelling were employed in this study to investigate saltwater intrusion in fractured aquifers. [12] We study the change in permeability in fractured aquifers of the North China Paraplatform based on 11 years of groundwater hydrographs of 7 wells and 62 earthquakes. [13] An integrated approach of satellite remote sensing and geophysical techniques was used to investigate groundwater occurrence in the fractured aquifers of the mountainous area north of Abha city. [14] In the Federal District of Brazil, groundwater extraction is challenged by fractured aquifers with difficulty in identification of hydraulic traps and significant uncertainty in the estimation of recharge potential. [15] The electrical resistivity method has been used to identify fractures, and this research seeks the optimization of its application in characterizing rock mass and fractured aquifers. [16] Understanding the impact of climate change on borehole yields from fractured aquifers is essential for future water resources planning and management. [17] The geological alignments represent fracture systems that allow the infiltration, percolation and accumulation of groundwater in crystalline terrains, originating the fractured aquifers. [18] Determining hydraulic apertures is crucial, because flow behaviour in fractured aquifers is controlled by the properties of the fractures, with the hydraulic aperture representing a governing hydraulic feature (e. [19] The memory function represents the solutions of conductive heat exchange between fractures and matrix blocks and between fractured aquifers and unfractured aquitards. [20] Fractured aquifers, in which groundwater occurs, are an example of fractal geometry/nature. [21] Hence, a rigorous methodology is needed to estimate groundwater flow velocities in such fractured aquifers. [22] The talus cones and slopes at the base of the rock cliffs play the role of hydraulic connection between the fractured aquifers and the porous aquifers at the valley floor. [23] Given the high potential of pumping tests to identify flow regimes, this paper presents a derivative analysis of pumping tests performed in three wells located in the Jundiai municipality – State of Sao Paulo, Brazil, aiming to improve the understanding of conceptual flow modeling of fractured aquifers. [24] Fracture geometry and hydraulic properties derived from ERT and pumping tests were further used to evaluate two mathematical conceptualizations that are relevant to fractured aquifers. [25] In Senegal, the Kedougou Kenieba inlier is characterized by the presence of fractured aquifers, thus constituting a problem of availability and mobilization of groundwater resources in this zone. [26] The results confirmed and expanded knowledge on the nature of groundwater recharge response from rainfall in fractured aquifers in semi-arid areas and the applicability of EARTH model and CMB method in recharge estimation. [27] This research aimed to investigate the geochemical mechanisms that govern the strong hydrochemical variations in the fractured aquifers of the Itabuna/BA region. [28] The salinity origins should be explained by 4 hypotheses: 1) a group related to recharge zones, close to the basin headboard or connected to the fractured aquifers from the basement rocks (low Cl/Br ratio and predominance of light δ18O and δ2H isotopes; 2) a group formed by groundwater with high Cl/Br ratio and predominance of heavy δ18O and δ2H isotopes, associated to dissolution processes of Tertiary brackish water environment sediments; 3) a group formed by groundwater with low Cl/Br ratio, high Cl− concentrations and low δ18O and δ2H, related to groundwater under influence of Caceribu River (high content of domestic effluents); and 4) a group composed by groundwater with high salinity, high Cl− concentrations and enrichment of δ18O and δ2H, located at a mangrove area, where the influence of seawater intrusion in the aquifer is recognized. [29] The intensive and prolonged dry spell, semi-arid climate, long-term withdrawal of groundwater for irrigation, alkaline nature of sub-surface circulating water, a long residence time of water in fractured aquifers and low chances of dilution are favourable for fluoride enrichment in the Puruliya District. [30] In this region, metalimestones from the Sete Lagoas Formation occur, composed by Pedro Leopoldo and Lagoa Santa members, which accommodate the karst-fractured aquifers. [31] In order to understand the hydrogeological dynamic in rock masses that contribute to AMD production, this paper aimed to subsidize mitigation programs in fractured aquifers using a structural analysis and geophysical survey for the reduction of acid drainage generation. [32] Principal component analysis of the data suggests that contamination from anthropogenic sources has a major role in determining the hydrochemical characteristics of groundwater in the weathered zone unlike in the case of fractured aquifers where water–rock interaction is the major factor responsible. [33] Various methods exist to interpret well-test for different boundary conditions in porous or fractured aquifers. [34]在所有模型中，裂隙含水层、粘土、非含水层和集水区作物覆盖范围、集水区地形和干旱度是解释 BFI 的重要自然协变量。 [1] 结果表明，在裂缝含水层补给过程中，潜水带和表岩溶中的（暂时）饱和裂隙网络可能在氮的周转中起重要作用。 [2] 摘要 反演模拟已被应用于重建裂隙含水层水力特征的空间变异性。 [3] 我们提出，在两次喷发时都存在具有浅地下水位（甚至地表水）的断裂含水层，并与岩浆发生爆炸性相互作用。 [4] 考虑到环境的复杂性和全球对裂隙含水层地下水的利用，这项工作通过区分地理空间参数来降低 CBAS 的勘探风险。 [5] 2015年干湿季共采集冲积层和裂隙含水层地下水以及地表水41个水样进行主量元素和微量元素分析。 [6] 性能评估表明，与传统的先导点反演方案相比，具有所提议的随机二元先验的 HT 可用于恢复裂缝连通性并以合理的精度预测裂缝含水层的下降。 [7] 由于裂缝及其几何形状，裂缝含水层具有复杂的物理和水文地质特性。 [8] 众所周知，破裂的含水层具有复杂的流动路径几何形状，非常不均匀。 [9] 分形平流-扩散方程和分数时空平流-扩散方程已被开发以改进裂缝含水层中地下水输送的模拟。 [10] 岩相学研究包括岩石露头的描述和在显微镜下观察岩石样本以确定破裂含水层中基岩的性质。 [11] 本研究采用实验室规模实验和数值模拟来研究裂缝含水层中的盐水入侵。 [12] 基于 11 年 7 口井和 62 次地震的地下水水文图，研究了华北 Paraplatform 裂缝含水层渗透率的变化。 [13] 采用卫星遥感和地球物理技术相结合的方法，研究了艾卜哈市北部山区断裂含水层中地下水的存在情况。 [14] 在巴西联邦区，地下水开采面临着裂缝含水层的挑战，难以识别水力圈闭，并且在估计补给潜力方面存在很大的不确定性。 [15] 电阻率方法已被用于识别裂缝，本研究旨在优化其在表征岩体和裂缝含水层中的应用。 [16] 了解气候变化对断裂含水层钻孔产量的影响对于未来的水资源规划和管理至关重要。 [17] 地质排列代表裂缝系统，这些裂缝系统允许地下水在结晶地形中渗透、渗透和积累，从而产生裂缝含水层。 [18] 确定水力孔径是至关重要的，因为裂缝含水层中的流动行为受裂缝特性的控制，水力孔径代表一个支配性的水力特征（例如。 [19] 记忆函数代表裂缝与基质块之间以及裂缝含水层与非裂缝性隔水层之间的传导热交换解。 [20] 存在地下水的破裂含水层是分形几何/性质的一个例子。 [21] 因此，需要一种严格的方法来估计此类裂缝含水层中的地下水流速。 [22] 岩石峭壁底部的距骨锥和斜坡起到了裂缝含水层与谷底多孔含水层之间水力连接的作用。 [23] 鉴于抽水试验识别流态的巨大潜力，本文对位于巴西圣保罗州容迪亚伊市的三口井进行的抽水试验进行了衍生分析，旨在提高对裂缝含水层概念流动模型的理解. [24] 由 ERT 和抽水试验得出的裂缝几何形状和水力特性被进一步用于评估与裂缝含水层相关的两个数学概念。 [25] 在塞内加尔，Kedougou Kenieba 内陆的特点是存在破裂的含水层，因此构成了该区域地下水资源的可用性和调动问题。 [26] 结果证实并扩展了关于半干旱地区裂缝性含水层降雨对地下水补给响应的性质以及EARTH模型和CMB方法在补给估算中的适用性的认识。 [27] 本研究旨在研究控制 Itabuna/BA 地区破裂含水层中强烈水化学变化的地球化学机制。 [28] 盐度成因应该用 4 个假设来解释：1) 一组与补给带有关，靠近盆地床头板或与基底岩石的裂缝含水层相连（低 Cl/Br 比和轻 δ18O 和 δ2H 同位素占优势；2 ) 由高 Cl/Br 比和主要重 δ18O 和 δ2H 同位素的地下水形成的组，与第三纪咸水环境沉积物的溶解过程有关； 3) 由低Cl/Br比、高Cl-浓度和低δ18O和δ2H的地下水形成的一组，与受卡塞里布河影响的地下水有关（生活污水含量高）； 4) 一个由高盐度、高Cl-浓度和富集δ18O和δ2H的地下水组成的组，位于红树林区，海水侵入含水层的影响得到认可。 [29] 密集和长期干旱、半干旱气候、长期抽取地下水用于灌溉、地下循环水的碱性、水在裂隙含水层中的停留时间长、稀释机会低，有利于氟化物富集。普鲁利亚区 [30] 在该地区，出现了来自 Sete Lagoas 组的金属石灰石，由 Pedro Leopoldo 和 Lagoa Santa 成员组成，其中容纳了岩溶破裂的含水层。 [31] 为了了解有助于 AMD 产生的岩体中的水文地质动态，本文旨在通过结构分析和地球物理调查来补贴裂缝含水层的缓解计划，以减少酸排水的产生。 [32] 数据的主成分分析表明，人为来源的污染在确定风化带中地下水的水化学特征方面具有重要作用，这与裂缝含水层的情况不同，其中水-岩石相互作用是主要因素。 [33] 存在多种方法来解释多孔或裂缝含水层中不同边界条件的试井。 [34]
Porosity Fractured Aquifers
Well testing in double-porosity fractured aquifers or oil and gas reservoirs is one of the long-lasting research problems in subsurface hydrology and petroleum engineering, where the double-porosity implies that the media of concern can be approximated as a two interrelated continuum (fracture network and rock matrix) with two distinctively different porosities. [1] Results show old groundwater at all depths and the simultaneous occurrence of young water at shallower depths in undisturbed dual-porosity fractured aquifers in the Pilbara region of Western Australia. [2]在双孔隙度压裂含水层或油气藏中进行试井是地下水文和石油工程中长期存在的研究问题之一，其中双孔隙度意味着所关注的介质可以近似为两个相互关联的连续体（裂缝网络和岩石基质）具有两种明显不同的孔隙度。 [1] 结果表明，在西澳大利亚皮尔巴拉地区未受干扰的双孔隙度裂缝含水层中，所有深度的老地下水和较浅深度的年轻水同时出现。 [2]