Pumping tests analyses of a heterogeneous pore aquifer based on the Generalized Radial Flow model

DENG Qiwen; CHEN Gang; ZHENG Ke; SHI Wen; HU Cheng

doi:10.16030/j.cnki.issn.1000-3665.202106029

2022 Vol. 49, No. 2

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DENG Qiwen, CHEN Gang, ZHENG Ke, SHI Wen, HU Cheng. Pumping tests analyses of a heterogeneous pore aquifer based on the Generalized Radial Flow model[J]. Hydrogeology & Engineering Geology, 2022, 49(2): 17-23. doi: 10.16030/j.cnki.issn.1000-3665.202106029

Citation:

DENG Qiwen, CHEN Gang, ZHENG Ke, SHI Wen, HU Cheng. Pumping tests analyses of a heterogeneous pore aquifer based on the Generalized Radial Flow model[J]. Hydrogeology & Engineering Geology, 2022, 49(2): 17-23. doi: 10.16030/j.cnki.issn.1000-3665.202106029

Pumping tests analyses of a heterogeneous pore aquifer based on the Generalized Radial Flow model

School of Environmental Studies, China University of Geosciences (Wuhan), Wuhan, Hubei　430074, China

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Corresponding author: HU Cheng, hu_cheng@cug.edu.cn

Received Date: 18 June 2021

Revised Date: 14 August 2021

Publish Date: 15 March 2022

Abstract

Abstract

Classical models such as the Theis model and Dupuit model have certain limitations in analyzing pumping test data of heterogeneous aquifers, and the obtained parameters are not suitable for characterizing the heterogeneous aquifers. The GRF model, however, can obtain the data of flow characteristics of aquifers, which can better characterize the characteristics of heterogeneous aquifers than the Theis model and Dupuit model do. Based on the pumping test data of the Qianchenzhou Yangtze River Bridge in East Lake New Village of Huangshi, the Theis model and GRF model are used to calculate the aquiferous water flow dimension and the apparent hydraulic diffusion coefficient (K_f /S_sf ), and the hydrological geological parameters calculated by different methods are combined with the actual hydrological geological conditions. The results show that the aquifer in the study area is a heterogeneous aquifer with fine sand intercalated with banded clay lens, so it is more reasonable to use the GRF model to calculate the parameters. The coefficient of permeability is 4.09×10⁻³ cm/s, and the flow dimension is 1.61. The flow regime is equivalent to the bilinear one, and the aquifer response to pumping is governed by the clay strip. The non-linear correlation of K_f /S_sf between the observation wells and pumping wells further confirms the heterogeneity of the aquifers. In the heterogeneous pore aquifers, the application of the porous combined unstable GRF well flow test method can not only determine hydrogeological parameters, but also enrich the cognition of aquifer characteristics.
- heterogeneous porous medium /
- pumping test /
- coefficient of permeability /
- GRF model /
- flow dimension

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References

[1]	由明宇. 大理隐仙溪冲洪积扇含水层非均质性分布规律研究[D]. 昆明: 昆明理工大学, 2016. Google Scholar YOU Mingyu. Study on the aquifer heterogeneity distribution of an alluvial-proluvial fan in Dali Yinxian stream, Yunnan [D]. Kunming: Kunming University of Science and Technology, 2016. (in Chinese with English abstract) Google Scholar
[2]	赵瑞珏, 毛德强, 刘再斌, 等. 基于水力层析法的某煤矿承压含水层叠加放水试验分析[J]. 水文地质工程地质,2021,48(1):1 − 9. [ZHAO Ruijue, MAO Deqiang, LIU Zaibin, et al. An analysis of sequential water releasing tests of the confined aquifers in a coal mine based on hydraulic tomography[J]. Hydrogeology & Engineering Geology,2021,48(1):1 − 9. (in Chinese with English abstract) Google Scholar
[3]	林加定. 非均质含水层水力层析扫描及其在巴音河冲洪积扇的应用[D]. 重庆: 重庆交通大学, 2019: 1 − 108. Google Scholar LIN Jiading. Hydraulic tomography on heterogenous aquifer and its application in the Bayin River Alluvial Fan[D]. Chongqing: Chongqing Jiaotong University, 2019: 1 − 108. (in Chinese with English abstract) Google Scholar
[4]	沙俊强, 王为治, 欧阳平, 等. 长江底隧道抽水试验及水文地质参数计算[J]. 江苏建筑,2017(3):56 − 59. [SHA Junqiang, WANG Weizhi, OUYANG Ping, et al. Pumping tests and hydrogeological parameters calculation for the surrounding rocks of conveyance tunnel under the Yangtze River[J]. Jiangsu Construction,2017(3):56 − 59. (in Chinese with English abstract) doi: 10.3969/j.issn.1005-6270.2017.03.016 CrossRef Google Scholar
[5]	张东, 刘晓丽, 王恩志. 非均匀多孔介质等效渗透率的普适表达式[J]. 水文地质工程地质,2020,47(4):35 − 42. [ZHANG Dong, LIU Xiaoli, WANG Enzhi. A universal expression of the equivalent permeability of heterogeneous porous media[J]. Hydrogeology & Engineering Geology,2020,47(4):35 − 42. (in Chinese with English abstract) Google Scholar
[6]	BARKER J A. A generalized radial flow model for hydraulic tests in fractured rock[J]. Water Resources Research,1988,24(10):1796 − 1804. doi: 10.1029/WR024i010p01796 CrossRef Google Scholar
[7]	李金轩, 余修日. 低渗透裂隙岩体压水试验资料分析[J]. 岩石力学与工程学报,2004,23(9):1476 − 1480. [LI Jinxuan, YU Xiuri. Analysis of constant-pressure well test data for low-permeability fractured rock mass[J]. Chinese Journal of Rock Mechanics and Engineering,2004,23(9):1476 − 1480. (in Chinese with English abstract) doi: 10.3321/j.issn:1000-6915.2004.09.013 CrossRef Google Scholar
[8]	BANGOY L M, BIDAUX P, DROGUE C, et al. A new method of characterizing fissured media by pumping tests with observation wells[J]. Journal of Hydrology,1992,138(1/2):77 − 88. Google Scholar
[9]	RAFINI S, CHESNAUX R, FERROUD A. A numerical investigation of pumping-test responses from contiguous aquifers[J]. Hydrogeology Journal,2017,25(3):877 − 894. doi: 10.1007/s10040-017-1560-x CrossRef Google Scholar
[10]	KUUSELA-LAHTINEN A, NIEMI A, LUUKKONEN A. Flow dimension as an indicator of hydraulic behavior in site characterization of fractured rock[J]. Groundwater,2003,41(3):333 − 341. doi: 10.1111/j.1745-6584.2003.tb02602.x CrossRef Google Scholar
[11]	RAFINI S, LAROCQUE M. Insights from numerical modeling on the hydrodynamics of non-radial flow in faulted media[J]. Advances in Water Resources,2009,32(8):1170 − 1179. doi: 10.1016/j.advwatres.2009.03.009 CrossRef Google Scholar
[12]	DOUGHTY C, KARASAKI K. Flow and transport in hierarchically fractured rock[J]. Journal of Hydrology,2002,263(1/2/3/4):1 − 22. Google Scholar
[13]	VERBOVŠEK T. Influences of aquifer properties on flow dimensions in Dolomites[J]. Groundwater,2009,47(5):660 − 668. doi: 10.1111/j.1745-6584.2009.00577.x CrossRef Google Scholar
[14]	BOURDET D, WHITTLE T M, DOUGLAS A A, et al. A new set of type curves simplies well test analysis[J]. World Oil,1983,196(6):877 − 894. Google Scholar
[15]	GIESE M, REIMANN T, LIEDL R, et al. Application of the flow dimension concept for numerical drawdown data analyses in mixed-flow Karst systems[J]. Hydrogeology Journal,2017,25(3):799 − 811. Google Scholar
[16]	SUI W B, MOU J Y, BI L F, et al. New flow regimes for well near constant pressure boundary[C]//All Days April 15-18, 2007. Buenos Aires: Argentina SPE, 2007: 1 − 12. Google Scholar
[17]	BEAUHEIM R L , ROBERTS R M . Flow-dimension analysis of hydraulic tests to characterize water-conducting features[C]// Nea Workshop on Water-conducting Features in Radionuclide Migration. Barcelona: GEOTRAP Project Workshop Proceedings, 1998: 1 − 10. Google Scholar
[18]	FERROUD A, RAFINI S, CHESNAUX R. Using flow dimension sequences to interpret non-uniform aquifers with constant-rate pumping-tests: a review[J]. Journal of Hydrology, 2019(2): 100003. Google Scholar
[19]	DOUGHTY C. Generating one-column grids with fractal flow dimension[J]. Computers & Geosciences,2017,108:33 − 41. Google Scholar
[20]	TIAB D. Analysis of pressure derivative data of hydraulically fractured wells by the Tiab's Direct Synthesis technique[J]. Journal of Petroleum Science and Engineering,2005,49(1/2):1 − 21. Google Scholar
[21]	DEWANDEL B, LACHASSAGNE P, ZAIDI F K, et al. A conceptual hydrodynamic model of a geological discontinuity in hard rock aquifers: Example of a quartz reef in granitic terrain in South India[J]. Journal of Hydrology,2011,405(3/4):474 − 487. Google Scholar
[22]	AVCI C B, ŞAHIN A U, ÇIFTÇI E. A new method for aquifer system identification and parameter estimation[J]. Hydrological Processes,2013,27(17):2485 − 2497. doi: 10.1002/hyp.9352 CrossRef Google Scholar
[23]	XIAO L, XU Y X. Diagnostic analysis of pumping tests using derivative of dlgs/dlgt with case study[J]. Ground water, 2014, 52 (Sup 1): 208 − 217. Google Scholar
[24]	LE BORGNE T, BOUR O, DE DREUZY J R, et al. Equivalent mean flow models for fractured aquifers: Insights from a pumping tests scaling interpretation[J]. Water Resources Research,2004,40(3):W03512. Google Scholar
[25]	王俊智,李清波,王贵军,等. 近水平层状坝基岩体渗透结构及其工程意义[J]. 水文地质工程地质,2022,49(1):12 − 19. [WANG Junzhi, LI Qingbo, WANG Guijun, et al. Permeability structure of the horizontally-stratified dam foundation rock mass and its engineering significance[J]. Hydrogeology & Engineering Geology,2022,49(1):12 − 19. (in Chinese with English abstract) Google Scholar
[26]	DUFFIELD G M. AQTESOLV for windows version 4.5 user’s guide[M]. Reston: HydroSOLVE Inc, 2007. Google Scholar