The sustainable operation of disposal systems that are part of wet crude handling facilities, is essential to ensure uninterrupted oil production from such plants. This paper will present the results of hydraulic simulation modeling of the capacity of a wastewater disposal system through an examination of the quality parameters for injected water. Applicable formation damage characterization methods, such as pressure transient analysis and continuous flow measurements, were utilized in this study to build representative models for each disposal well connected to System-A. The models were calibrated in a manner that couples surface and subsurface flow from the disposal pump all the way to the reservoir.

Water quality monitoring of disposed water was conducted by measuring the oil in water content. These data were, then, history matched with respective well injection performance to identify potential sources of well injection impairment.

An all-inclusive analysis, utilizing hydraulic simulation techniques, was performed to model the current injection performance and forecast the future reliability of a System-A disposal network, taking into account the impact of water quality and reservoir pressure variations. The collective inputs from laboratory analysis along with hydraulic simulation aided in formulating several key findings and recommendations with regard to setting appropriate limits of water quality control parameters.

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