<![CDATA[Water injection, the most widespread secondary method of oil recovery, is a pattern flooding when water is injected over the entire oil bearing area of the reservoir.The main reason why this method is so widely used is the high recovery achieved when water is the displacing agent both in the case of a natural water drive and when water injected into reservoir artificially. However, if the flooding operation is carried out carelessly, the result may be entirely negative or wasteful operation. One of the primary objectives of water flood analysis is to predict additional oil recovery obtained by water flooding from oil reservoirs.This paper presents a practical use of water flood method for formation evaluation of reservoir hydrocarbon and provides information that will be of practical value to geologist and engineers involved in the interpretation of water flood data; these then become the reference for an economic projection of the profitability of the waterflood.]]>
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