Automatic Evaluation of an Interwell-Connected Pattern for Fractured-Vuggy Reservoirs Based on Static and Dynamic Analysis

The types of fractured-vuggy reservoirs are diverse, with dissolution holes and fractures different scales as the main reservoir spaces. Clarifying connectivity between wells is crucial for improving recovery rate avoiding problems poor water- flooding balance serious water channeling. A traditional dynamic connected model hardly describes geological characteristics multiple media, such karst caves fractures, which cause solutions from calculation. static analysis basis evaluation. In this study, we designed an intelligent search strategy based on improved A* algorithm to automatically find a large-scale path by seismic multi-attribute analysis. evaluates interwell-connected mode clarifies relationship channel space configuration. Restricted various factors, identification accuracy, study can determine filling half-filling inside effectively, even if it identify channels. An injection-production response production data more accurately reflect reservoir’s actual degree filling. This paper further studies multifractals combined data. To reduce evaluation uncertainty, results comprehensively evaluate modes, large fracture connectivity, cavern compound connectivity. We use Tahe oilfield example carry out automatic pattern. comprehensive new were basically consistent tracer test better interwell space-configuration relationship. Our has certain guiding significance adjustment working measures during waterflooding in reservoirs.