Use of Integrated Modeling for Production Optimization in KOC North Kuwait Jurassic Gas Field

Abstract

AbstractThe North Kuwait Jurassic Gas (NKJG) reservoirs are currently under development by KOC. The fractured carbonate reservoirs contain gas condensate and volatile oil at pressures up to 11,500 psi with 2.9% H2S and 1.5% CO2. Currently around 20 active wells are producing to an Early Production Facility (EPF-50) that falls short of achieving the desired capacity and capability to handle production efficiently.To understand wells and field performance, an integrated system model comprising of wells, flow line and gathering system separator network was created. The setting up a model and its use is an integral subset of WRFM (Wells, Reservoir and Facilities Management) process that is essential for effectively managing the current asset and for further field development.The application of the model is to be an enabler for wider implementation of the WRFM process in KOC and a tool to meet the following objectives: It should closely match the EPF-50 throughputIt should identify problem wellsIt should identify well intervention and data gathering opportunitiesIt should be a tool for training engineers on nodal analysis and WRFMIt can be used for back allocationIt could be used to benchmark against any existing modelsThe model has shown close approximation with field metered production and is already achieving many of its desired objectives.This paper describes the use of integrated nodal analysis model to generate data gathering and well intervention opportunities not only to operate the facilities efficiently but understand well and reservoir behavior for input to full field development plan.