Analytical modeling of contaminant transport and horizontal well hydraulics

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Title: Analytical modeling of contaminant transport and horizontal well hydraulics
Author: Park, Eungyu
Abstract: This dissertation is composed of three parts of major contributions . In Chapter II , we discuss analytical study of contaminant transport from a finite source in a finite -thickness aquifer . This chapter provides analytical solutions of contaminant transport from one - , two - , and three -dimensional finite sources in a finite -thickness aquifer using Green's function method . A library of unpublished analytical solutions with different finite source geometry is provided . A graphically integrated software CTINT is developed to calculate the temporal integrations in the analytical solutions and obtain the final solutions of concentration . In Chapter III , we obtained solutions of groundwater flow to a finite -diameter horizontal well including wellbore storage and skin effect in a three -dimensionally anisotropic leaky aquifer . These solutions improve previous line source solutions by considering realistic well geometry and offer better description of drawdown near the horizontal well . These solutions are derived on the basis of the separation of the source and the geometric functions . The graphically integrated computer program FINHOW is written to generate type curves of groundwater flow to a finite -diameter horizontal well . The influence of the finite -diameter of the well , the wellbore storage , the skin effect , the leakage parameter , and the aquifer anisotropy is thoroughly analyzed . In Chapter IV , a general theory of groundwater flow to a fractured or non -fractured aquifer considering wellbore storage and skin effect is provided . Solutions for both leaky confined and water table aquifers are provided . The fracture model used in this study is the standard double -porosity model . The storage of the aquitard (the leaky confining layer ) is included in the formula . A program denoted FINHOW2 is written to facilitate the calculation . Sensitivity of the solution to the confined versus unconfined conditions , fractured versus non -fractured conditions , and wellbore storage and skin effects is analyzed .
URI: http : / /hdl .handle .net /1969 .1 /17
Date: 2004-09-30

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Analytical modeling of contaminant transport and horizontal well hydraulics. Available electronically from http : / /hdl .handle .net /1969 .1 /17 .

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