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13ouwer-bice (1976) Solution for a Slug Test <br /> Bouwer and Rice (1976) developed an empirical relationship describing the water-level response in an <br /> unconfined aquifer due to the instantaneous injection or withdrawal of water from a well <br /> r,;ln(r� /r..) <br /> 1 <br /> K. <br /> rW` — rw K <br /> r <br /> Bouwer and Rice (1976) recommend computing an equivalent casing radius to correct for the porosity <br /> of the gravel pack when the height of the static water column in the well is less than the screen length. <br /> AOTESOLV for Windows automatically computes the equivalent casing radius using the value of <br /> porosity (n) specified in the data set (see A uifer Data , a poressty equal to zero (0 0) results in no <br /> _ correction to the casing radius <br /> Zlotnik (1994) advises the use of an equivalent wellbore radius if the aquifer is anisotropic in a vertical <br /> plane AOTESOLV automatically computes the equivalent wellbore radius using the value of <br /> anisotropy ratio (Kz/Kr)specified in the data set (See Aquifer Data) An anisotropy ratio equal to unity <br /> (1 0) results in no correction to the well radius <br /> Refer to the List of Symbols for a description of the parameters and variables contained in the <br /> equations <br /> 7r, <br /> potenoometnc surface <br /> after slug injection <br /> --- - ------'---- -- -------------- <br /> q----------------- <br /> potennonietric surfacC aquifer <br /> before slug injection 1C.KX <br /> H L b <br /> 2r. <br /> c'll�liiClUdC <br /> Related Topics: <br /> Assu---_rn� tp M <br /> Data Re uirements <br /> References <br /> Tutorial <br />