Formulating surrogate pumping test data sets to assess aquifer hydraulic conductivity
A hypothesis to estimate hydraulic conductivity from surrogate pumping tests formulated using routinely monitored pumping rates and hydraulic heads is tested. The data set of a surrogate pumping test contains only a few late-time drawdowns represented by changes in heads at selected monitoring wells...
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| Format: | Article |
| Language: | English |
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Elsevier
2018-12-01
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| Series: | Journal of Hydrology X |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S258991551830004X |
| _version_ | 1818515171414376448 |
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| author | Kerang Sun |
| author_facet | Kerang Sun |
| author_sort | Kerang Sun |
| collection | DOAJ |
| description | A hypothesis to estimate hydraulic conductivity from surrogate pumping tests formulated using routinely monitored pumping rates and hydraulic heads is tested. The data set of a surrogate pumping test contains only a few late-time drawdowns represented by changes in heads at selected monitoring wells in responses to changes in pumping rate at an extraction well. The surrogate pumping test can be analyzed using a simple analytical model to estimate hydraulic conductivity. Compared with conventional aquifer testing methods such as short-term pumping and slug tests, the method offers the following advantages: (1) it permits estimation of hydraulic conductivity using fewer data points; (2) it is unaffected by the potentially altered, near-well conditions that often affect slug tests; and (3) it offers cost and schedule savings by eliminating field work. The method was applied at a project site, yielding hydraulic conductivity values more than an order of magnitude higher than those derived from slug tests, and comparable to values derived from a standard 24-h pumping test. Keywords: Surrogate, Aquifer testing, Hydraulic conductivity, Permeability, Pumping test, Slug test |
| first_indexed | 2024-12-11T00:25:37Z |
| format | Article |
| id | doaj.art-d0249baa0e4d4ff0b4fb775c645cf9f3 |
| institution | Directory Open Access Journal |
| issn | 2589-9155 |
| language | English |
| last_indexed | 2024-12-11T00:25:37Z |
| publishDate | 2018-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Hydrology X |
| spelling | doaj.art-d0249baa0e4d4ff0b4fb775c645cf9f32022-12-22T01:27:35ZengElsevierJournal of Hydrology X2589-91552018-12-011Formulating surrogate pumping test data sets to assess aquifer hydraulic conductivityKerang Sun0Jacobs Engineering Group Inc., 2600 Michelson Drive #500, Irvine, CA 92612, USAA hypothesis to estimate hydraulic conductivity from surrogate pumping tests formulated using routinely monitored pumping rates and hydraulic heads is tested. The data set of a surrogate pumping test contains only a few late-time drawdowns represented by changes in heads at selected monitoring wells in responses to changes in pumping rate at an extraction well. The surrogate pumping test can be analyzed using a simple analytical model to estimate hydraulic conductivity. Compared with conventional aquifer testing methods such as short-term pumping and slug tests, the method offers the following advantages: (1) it permits estimation of hydraulic conductivity using fewer data points; (2) it is unaffected by the potentially altered, near-well conditions that often affect slug tests; and (3) it offers cost and schedule savings by eliminating field work. The method was applied at a project site, yielding hydraulic conductivity values more than an order of magnitude higher than those derived from slug tests, and comparable to values derived from a standard 24-h pumping test. Keywords: Surrogate, Aquifer testing, Hydraulic conductivity, Permeability, Pumping test, Slug testhttp://www.sciencedirect.com/science/article/pii/S258991551830004X |
| spellingShingle | Kerang Sun Formulating surrogate pumping test data sets to assess aquifer hydraulic conductivity Journal of Hydrology X |
| title | Formulating surrogate pumping test data sets to assess aquifer hydraulic conductivity |
| title_full | Formulating surrogate pumping test data sets to assess aquifer hydraulic conductivity |
| title_fullStr | Formulating surrogate pumping test data sets to assess aquifer hydraulic conductivity |
| title_full_unstemmed | Formulating surrogate pumping test data sets to assess aquifer hydraulic conductivity |
| title_short | Formulating surrogate pumping test data sets to assess aquifer hydraulic conductivity |
| title_sort | formulating surrogate pumping test data sets to assess aquifer hydraulic conductivity |
| url | http://www.sciencedirect.com/science/article/pii/S258991551830004X |
| work_keys_str_mv | AT kerangsun formulatingsurrogatepumpingtestdatasetstoassessaquiferhydraulicconductivity |