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Title: Numerical Simulation of Produced Water Management in Water Coning Wells with Downhole Water Sink Completion: Field Case Application in Middle East
Authors: Nasser Hadi Alazmi 
Supervisor: Dr. Faisal Abdullah Aladwani
Keywords: Water Coning Wells , Downhole Water Sink Completion,Middle East
Issue Date: 2016
Publisher:  Kuwait university - college of graduate studies
Abstract: Produced Water is a major challenge in the oil and gas industry. Water production increases worldwide as more reservoirs depleted over time. Managing the subsurface water conformance maximizes hydrocarbon production and reduces operating cost that is mainly expected from the unwanted water production. On the other hand, ignoring such a problem could decrease hydrocarbon production and lead to uneconomic well production. It is important to identify the water source in order to solve any problem related to the unwanted water production. Once the mechanism of the water production is understood, an effective strategy can be designed to detect and control the produced water. Different technologies and methods have been developed to control produced water. For example, Production Logging Tool (PLT) and Chan's WOR diagnostic plot are two common methods for determining if water problem is present or not, and to determine what are the causes of the unwanted water production. Downhole Water Sink (DWS) completion is a new technique which uses dual completion to control unwanted water production in wells producing from reservoirs with bottom water drive. DWS wells contain two completions; namely a bottom completion that produces water to the surface, and a top one that is open for oil flow. A large variety of chemical and mechanical water control technologies are available to mitigate the problems related to the unwanted water production. These technologies not only prevent or reduce water production; they also increase hydrocarbon production and extend the reservoir lifetime. The aim of this study is to evaluate DWS technology performance in vertical oil wells located in Middle East Reservoir, which have severe water coning. In addition, economical analysis results were obtained by comparing the conventional wells with DWS wells to investigate the effect of DWS in reducing the operating cost. Results showed that the DWS completion minimized the water production by 81% and enhanced oil production by 26% compared to the conventional completions.
Appears in Programs:0650 Petroleum Engineering

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