BP will present two applications of Nexus®, Landmark’s reservoir simulator designed for the management and optimization of multiple reservoirs, wells, and surface facilities. In the two modeled fields, specialized production management algorithms will be implemented by flexible user-developed procedures, which are written in an object-based Fortran-like language and processed by Nexus as part of the model input data. In these two fields, the multi-reservoir Greater Plutonio (GtP) field in offshore Angola, and the giant Prudhoe Bay Unit (PBU) field in Alaska, the user-developed procedures have been included to manage and optimize production.
The extensive user procedure facility in Nexus enables customizable production management algorithms, which can both mirror existing management practices and allow for testing of proposed alternative practices. In BP Angola the use of these optimization procedures, allowed engineers to evaluate and progress through a stage gate a project that previously was thought to be uneconomic due to future ullage constraints.