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Characterization of High‐K Pathways by Borehole Flowmeter and Tracer Tests
Author(s) -
Young Steven C.
Publication year - 1995
Publication title -
groundwater
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.84
H-Index - 94
eISSN - 1745-6584
pISSN - 0017-467X
DOI - 10.1111/j.1745-6584.1995.tb00286.x
Subject(s) - tracer , borehole , characterization (materials science) , flow measurement , geology , geotechnical engineering , materials science , mechanics , physics , nanotechnology , nuclear physics
This paper reviews different borehole flowmeter analysis methods and evaluates their applicability to a test site composed of fluvial deposits. Results from tracer and aquifer tests indicate that the aquifer is highly heterogeneous and that low‐K skin effects exist at the wells. Borehole flowmeter tests were performed at 37 wells. An appropriate method for calculating borehole flowmeter K values was developed based on results from multiwell pumping tests, single‐well pumping tests, and slug tests. The flowmeter data produced 881 K values. The trends and the magnitude of the K values are consistent with results from geologic investigations, recirculating tracer tests, and large‐scale multiwell pumping tests. The field tests illustrate that high‐K deposits can significantly affect ground‐water flows in some heterogeneous fluvial aquifers.