The Application of Computational Geometry Algorithms in Discriminating Direct Injection-Production Connections

It is necessary to analyze direct connections between injection wells and production wells for discovering superior water channels, researching water flooding effectiveness and flow directions in a single well group. A new method of discriminating the direct connections by applying computational geometry algorithms and percolation theory was proposed. This method uses static and dynamic, monitoring and stimulation data and considers various factors such as patterns and distributions of sand bodies and faults, production performance and perforation sealing state. Experiment results in dozens of oilfield blocks demonstrate that the method has advantages of high accuracy and high calculation speed.