Implementation of Inflow Control Devices in Gas Condensate Reservoirs using Reservoir Simulation
Location: Norway | Client: IPT, NTNU | Published: Tue, 04/24/2012
This thesis aims at modeling Inflow Control Devices (ICD) and assessing potential benefits of using ICDs in gas condensate reservoirs. The evaluation of benefits is mainly in terms of Net Present Value (NPV). A radial single-well model is simulated using synthetic data. An optimization project, based on economic calculations using simulation results, has been developed. Perspective for further investigations is proposed.
Technical Solution in Pipe-It
The strategy adopted to build Pipe-It project is based on a Master/Slave architecture. Master project consists of initializing the reservoir. Specific values for a given set of properties (initial reservoir pressure in both layers, initial saturation pressure in both layers, permeability in both layers, layer thickness, etc.) are assigned to SENSOR data file using Linkz. Then, a module inside Master project launches Slave project via Pipe-Itc. Slave project is an optimization project using Reflection solver. The objective function is the Total Discounted Value∗ and the only optimization variable is Skin Value which represents the ICD. Post-processing of results is based on extracting total discounted value for a skin equal to 0 and maximum total discounted value for a given skin value (which can be skin equal to 0 if ICD has no advantage). A percentage of increase in total discounted value between no ICD (skin equal to 0) and ICD is issued to evaluate the potential of implementing ICD. For every reservoir initialization performed in the Master project, an optimization is run in the slave project. Many reservoirs, with different properties, are tested through the Master project to find out which ones are the best candidates for ICD implementation.