Use a multiphase flow simulator to improve performance fieldwide
Manual and analytical workflows were replaced with computer-based numerical simulation using the PIPESIM simulator to provide an effective decisions-support platform for the UGV engineering team.
Schlumberger helped UGV identify the right dataset, perform QA and QC of the field data, build a network model using the PIPESIM simulator based on 10 wells, and then gradually scale up to 69 wells for three interconnected fields. During creation of a pipeline network, a significant amount of time was spent automatically exporting digitized topology data into the PIPESIM simulator from the UGV's GIS data.
The model created had a detailed description of each well including a full wellbore diagram, inclusive of perforation intervals, deviation profiles, heat transfer coefficients, inflow performance data, detailed geometry profile and pipeline characteristics, compositional data for the fluid, and soil conductivities and temperatures. Pressure was set up at the boundary conditions in the central process facilities and the network model was matched against production rates and pressure at source point and intermediate points along the network. The matching process was carried out first by trunklines individually, then all together. The result was a model that proved its quality with an accuracy of more than 95% for pressure and rates.