A Numerical Model Coupling Reservoir and Horizontal Well Flow Dynamics—Applications in Well Completions, and Production Logging

摘要: A fully implicit, three-dimensional simulator with local grid refinement around the wellbore is developed to solve reservoir and horizontal well flow equations simultaneously, for single-phase liquid gas cases. The model consists of conservation mass Darcy's law in reservoir, momentum isothermal conditions. Establishing continuity pressure preserving balance at sandface satisfy coupling requirements. proposed tested against verified results obtained from a commercial code ECLIPSE-100, available public domain simulators semi-analytical models. can be used multiple purposes such as productivity prediction, transient analyses, length optimization, completion design production logging interpretation. Different scenarios anisotropy are simulated their effects on wells discussed. Completion cases include open-hole partial completions. During well, coil tubing reduces cross sectional area may cause substantial changes behavior. Depending diameters, significant difference between actual rates log observed.