抽水组数和先验信息对估算三维非均质含水层渗透系数的影响

黄康; 孙蓉琳; 袁淑卿; 杨艺娇; 蒋立群

doi:10.3799/dqkx.2021.013

Volume 47 Issue 2

Feb. 2022

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Article Navigation > Earth Science > 2022 > 47(2): 689-699

Huang Kang, Sun Ronglin, Yuan Shuqing, Yang Yijiao, Jiang Liqun, 2022. Effect of Number of Pumping Tests and Prior Information on Hydraulic Conductivity Estimation of Three-Dimensional Heterogeneous Aquifer. Earth Science, 47(2): 689-699. doi: 10.3799/dqkx.2021.013

Citation:

Huang Kang, Sun Ronglin, Yuan Shuqing, Yang Yijiao, Jiang Liqun, 2022. Effect of Number of Pumping Tests and Prior Information on Hydraulic Conductivity Estimation of Three-Dimensional Heterogeneous Aquifer. Earth Science, 47(2): 689-699. doi: 10.3799/dqkx.2021.013

Citation:

Huang Kang, Sun Ronglin, Yuan Shuqing, Yang Yijiao, Jiang Liqun, 2022. Effect of Number of Pumping Tests and Prior Information on Hydraulic Conductivity Estimation of Three-Dimensional Heterogeneous Aquifer. Earth Science, 47(2): 689-699. doi: 10.3799/dqkx.2021.013

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Effect of Number of Pumping Tests and Prior Information on Hydraulic Conductivity Estimation of Three-Dimensional Heterogeneous Aquifer

doi: 10.3799/dqkx.2021.013

School of Environmental Studies, China University of Geosciences, Wuhan 430078, China

Received Date: 2021-06-16
Publish Date: 2022-02-25

Abstract

Abstract

Hydraulic tomography (HT) can accurately characterize the hydraulic conductivity (K) of field heterogeneous aquifer, but the field test cost is relatively high and pumping test need to be optimized. In order to explore the effect of number of pumping tests and prior information on the K estimates, we constructed a laboratory three-dimensional sandbox with heterogeneous aquifer, and then carried out pumping tests in HT survey. The K fields are respectively estimated using HT with and without 42 K values of core samples as prior information. The estimated K fields from different cases are then used to predict non-dependent pumping tests and compare the accuracy of estimated K fields. With increasing number of pumping tests, the estimated K fields are gradually improved. When pumping tests increase to eight groups, the K estimates are not significantly improve with the increase of pumping tests. 42 K values of core samples as prior information can greatly improve the K estimates in HT survey. The K obtained from only two pumping tests with prior information has almost same accuracy as the K estimates from the case of eight pumping tests without prior information.
- hydraulic tomography,
- number of pumping tests,
- prior information,
- laboratory sandbox,
- hydraulic conductivity,
- hydrogeology

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References(41)

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Effect of Number of Pumping Tests and Prior Information on Hydraulic Conductivity Estimation of Three-Dimensional Heterogeneous Aquifer

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