Cased hole formation resistivity contribution in water management and production enhancement of mature reservoirs Online publication date: Fri, 06-Mar-2020
by Ghareb M. Hamada; Osama A. El Mahdy; Murugavel Chandran
International Journal of Petroleum Engineering (IJPE), Vol. 3, No. 3, 2019
Abstract: Water saturation measurements over time are useful for tracking reservoir depletion, and diagnosing production problems such as water production that is one of the main challenges facing oil and gas producers. It is necessary to manage water production to enhance oil production. In cased hole evaluation, cased hole resistivity finds it utility in two circumstances; as a first resistivity measurement in old and new wells to assess the formation in present conditions, or as a time-lapse technique to describe temporal behaviour of reservoir dynamic and reservoir fluids movements to mainly detect bypassed oil zones and water invaded zones. Five case studies of mature reservoirs suffer from water production problems attributed to different geological and reservoir conditions. In all cases, the remedial workover operations based on the cased hole resistivity results have allowed a significant enhancement of the oil production and the implementation of an optimum field management strategy.
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