Probabilistic Approach to Evaluation of Metal(loid) Fate During Stormwater Aquifer Storage and Recovery          下载免费PDF全文

Joanne L. Vanderzalm  Declan W. Page  Karen E. Barry  Kathleen Scheiderich  Dennis Gonzalez  Peter J. Dillon 《洁净——土壤、空气、水》2016,44(12):1672-1684

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Methodology and main results of seismic source characterization for the PEGASOS Project, Switzerland     

Kevin J. Coppersmith  Robert R. Youngs  Christian Sprecher 《Swiss Journal of Geoscience》2009,102(1):91-105

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Integrated Interpretation of Interwell Connectivity Using Injection and Production Fluctuations   总被引：1，自引：1，他引：0  

Ali A. Yousef  Jerry L. Jensen  Larry W. Lake 《Mathematical Geosciences》2009,41(1):81-102

A method to characterize reservoirs, based on matching temporal fluctuations in injection and production rates, has recently been developed. The method produces two coefficients for each injector–producer pair; one parameter, λ, quantifies the connectivity and the other, τ, quantifies the fluid storage in the vicinity of the pair. Previous analyses used λ and τ separately to infer the presence of transmissibility barriers and conduits in the reservoir, but several common conditions could not be easily distinguished. This paper describes how λ and τ can be jointly interpreted to enhance inference about preferential transmissibility trends and barriers. Two different combinations are useful: one is a plot of log (λ) versus log (τ) for a producer and nearby injectors, and the second is a Lorenz-style flow capacity (F) versus storativity (C) plot. These techniques were tested against the results of a numerical simulator and applied to data from the North Buck Draw field. Using the simulated data, we find that the F–C plots and the λ–τ plots are capable of identifying whether the connectivity of an injector–producer well pair is through fractures, a high-permeability layer, multiple-layers or through partially completed wells. Analysis of data from the North Buck Draw field shows a reasonable correspondence between τ and the tracer breakthrough times. Of two possible geological models for Buck Draw, the F–C and λ–τ plots support the model that has less connectivity in the field. The wells in fluvial deposits show better communication than those wells in more estuarine-dominated regions.  相似文献   

上海地区第四承压含水层沉积环境及结构特征     

吴建中  俞俊英  李晓  方志雷 《上海国土资源》2009,(1)

上海地区第四承压含水层是地下水开发利用的主要层次,对其沉积环境、成因、结构特征进行深入研究有利于更好地开展地下水资源开发利用及地质环境保护工作.本文在对上海地区大量钻孔资料深入分析的基础上,对第四承压含水层形成时期即早更新世中、晚期沉积环境及含水层的成因进行了深入剖析,对含水层结构特征进行了详细刻画,为三维地质结构的建立奠定了基础.  相似文献   

静电场轨道阱质谱在水中溶解性有机质表征中的应用进展     

王书越  何洪源  饶竹  石喆元  孟建卫  王立平  李开开 《地球学报》2022,43(1):101-109

溶解性有机质(Dissolved Organic Matter,DOM)在水生生态环境中广泛存在,影响着水环境中多种物质的生物地球化学性质.分析其组成与含量具有重要的生态环境意义,是生态环境科学领域研究的热点.溶解性有机质组成非常复杂,其分子组成的解析一直是难题.近年来,具有高分辨率、高灵敏度、高通量、高扫描速率等特性...  相似文献   

QVOA techniques for fracture characterization     

Vladimir Sabinin 《Geofísica Internacional》2013,52(4):311-320

New computational techniques of QVOA analysis (Quality factor Versus Offset and Azimuth) for fracture characterization are developed. The techniques are applied to synthetic surface data of reflection with noise.  相似文献   

Hydrochemical characterization of an acid mine drainage-affected reservoir: the Sancho Reservoir,Huelva, southwest Spain     

J.C. Cerón  M.L. de la Torre  J. Borrego  M. Santisteban  T. Valente 《水文科学杂志》2013,58(6):1213-1224

Abstract

The objectives of this study were to discover the relationship between variables in a water reservoir and the hydrochemical variations related to acid mine drainage (AMD), and to describe the horizontal stratification related to vertical salinity and variations in metals present in the region. The information obtained may be used for establishing risk evaluation criteria and to design future remediation strategies, which could be useful for new dams. The hydrochemical characterization was based on a sampling campaign performed in October 2011. A total of 28 samples, at 1-m-deep intervals, were obtained. The hydrogeochemical study of the polluted reservoir shows that the dilution effect is not sufficient to neutralize AMD contributions from mining activity. Sampling carried out from the surface water to the deepest points reveals stratification of the reservoir that allows it to be included in the group of monomictic and holomitic lakes.