Integration of Sub-Surface and Surface Models
RESOLVE has proprietary algorithms to perform the physically consistent coupling between reservoir simulators to well, network and process models (referred to as IPR Scaling). Commonly used techniques in the industry, such as the iterative Newton coupling, are computationally expensive, inflexible and restrictive. The Petex IPR scaling method allows for multiple simulation models from multiple vendors to be part of the model, being connected to a surface network that can include multiple levels of optimisation. Adaptive time-stepping allows the granularity in calculations when events occur in the field to be captured. The result is that mass and pressure balance exist across the system, irrespective of the underlying simulators, using fundamentally different physical principles at their core. Currently the following simulators can form part of a RESOLVE model: Eclipse (E100, E300), IMEX, GEM, PUMAFLOW, PSIM, NEXUS, VIP, tNavigator and TEMPEST (with more currently under development). In addition, many clients have created connections that are proprietary to their companies and the tools that they use internally.