Utilizing New Proven Technologies in Enhancing Geological Modeling Reservoir Simulation History-Matching: Case Study of A Giant Carbonate Field

摘要

Oil and gas field developments in the 21st century gained from the benefits of new technologies in reservoir characterization, including: intelligent field data, fine resolution geologic and mega-cell simulation modeling, and super-computing computer clusters. This paper elaborates how these technologies have been fully utilized - in the building of the geologic and simulation models for a giant carbonate oil field - and in understanding well and reservoir behaviors, as well as quantifying inter-reservoir communication between two carbonate reservoirs. The model building process includes: Facimage matrix permeability; fracture characterization; conditioning to dynamic permeability from pressure transient tests and flow-meter profiles; Thomeer function based water saturation distribution; and matching intelligent field well production, injection and pressure data. The fine layers resolution model allows capturing of detailed heterogeneity in wells as well as minimizing the error associated with model upscaling. Use of smart and assisted history matching tools - coupled with the powerful hardware - make possible the use of different discriminators to quickly test the following: possible baffles and barriers, high flow layer and/or local permeability enhancement. These geological features are not easy to map. Matching of numerous intelligent field well production/injection data and pressure improves the reliability of this simulation model. A simulation model that could both reproduce short- and long-term production performance enables a wider application - to support operations and proactive management of the field - as an outcome of utilizing these proven technologies.