Journal of Geological Society of India (Online archive from Vol 1 to Vol 78)

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A Comparative Study of Transmissivity Values Obtained by Slug-Test and Pump-Tests


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1 Central Ground Water Board, Southwestern Region, Bangalore, India
     

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The paper deals with the comparative study of the transmissivity values obtained by slug-tests and pump-tests on 58 wells drilled by DTH rigs in crystalline rocks comprising granites, gneisses, schists and basalts. The present study indicates that transmissivity values obtained by two methods vary mostly within a factor of three, except for pump-test T values of less than 10m2/day.
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  • A Comparative Study of Transmissivity Values Obtained by Slug-Test and Pump-Tests

Abstract Views: 242  |  PDF Views: 4

Authors

K. R. Karanth
Central Ground Water Board, Southwestern Region, Bangalore, India
V. S. Prakash
Central Ground Water Board, Southwestern Region, Bangalore, India

Abstract


The paper deals with the comparative study of the transmissivity values obtained by slug-tests and pump-tests on 58 wells drilled by DTH rigs in crystalline rocks comprising granites, gneisses, schists and basalts. The present study indicates that transmissivity values obtained by two methods vary mostly within a factor of three, except for pump-test T values of less than 10m2/day.