METHOD AND DEVICE FOR COMBINED MODELING OF PLASTIC MANIFOLDS AND SURFACE NETWORKS OF INDUSTRIAL EQUIPMENT PIPING

摘要

Joint modeling of surface pipelines and equipment, as well as underground reservoirs and wells, has shown that it has a critical impact on the development of the field and on its optimization. Integrated models are often necessary to properly analyze pressure interactions between a reservoir and a limited network of surface pipelines and production equipment, or to predict the changing state of several fields that may have different fluid compositions and distributed production equipment of general use. The latter is of tremendous importance in the modern development of a field with deep-water fluid deposits. The development of these fields requires a comprehensive solution to the problem of obtaining the following possibilities: balancing the model of the surface network of pipelines with the model of reservoir simulation, achieved in a sustainable and efficient way; combining models of many reservoirs, networks of pipelines for the extraction of fluids and networks of pipelines for their injection, as well as synchronization of their sequential operation over time; availability of use in reservoir models and surface networks of independent descriptions of their own fluids (descriptions of heavy oil or compositions with different sets of pseudo-components); the application of global production and injection limitations to the unified system (including the transfer of re-injected fluids between reservoir beds). In this patent application, a universal controller is described for combining multi-level reservoirs and a network of pipelines that has all of the above-mentioned features. The controller communicates with the selection of reservoir simulation programs and surface pipeline network simulation programs through an open interface for skipping messages. It manages the balancing of reservoirs and surface networks of pipelines, as well as synchronizes their work, consistent in time. The controller also applies global production and injection restrictions and determines the flow of hydrocarbon fluids between the different sets of pseudo-components used in the simulation models. Algorithms for combining and synchronizing the controller are described and exemplary applications are presented. The flexibility of the open controller interface makes it possible to embed it in promotional modules (for example, to perform optimization) and use it in additional modeling programs. The international application was published along with an international search report.