Field Evaluation of the Relationships Between Transmissivity, Permeability and Particle Size Distribution in the Washita Eiver Alluvial Aquifer, near Anadarko, -oklahoma

Abstract

This thesis is an evaluation of the additive nature of transmissivity and the relationship between permeability and grain size distribution. The basic approach was to test transmissivity addition in a multilayered aquifer via aquifer testing. The transmissivities calculated for each of the aquifer zones were summed together and compared with the total transmissivity of the aquifer for six methods of aquifer test analysis. Results from transmissivity addition were examined to verify the use of weighted permeability as a means of estimating aquifer transmissivity. An existing method of permeabi 1 i ty estimation from a qui fer median grain size data was expanded upon to include grain size sorting in terms of uniformity coefficient. Graphical plots were developed for the estimation of both in situ and laboratory permeability from median grain size and uniformity coefficient data obtained from drill cuttings and sediment cores.