Quick water breakthrough, rapid water cut rise, poor water flooding efficiency in single layer is common problem in most of thin interbed reservoirs. Finer injection-production strategy should be developed to avoid serious water channeling and ineffective water cycle. To narrow this gap, this work presents a threedimensional intelligent equilibrium displacement model (3D-IEDM) to optimize water flooding in thin interbed reservoirs. The implementation in pilot B36 well group test of PL oilfield indicate that the optimization velocity of 3D-IEDM can optimize the vertical water injection profile of thin interbed reservoirs, and improve the sweep efficiency, and the length of time is approximately 14 times less than conventional simulator-based methods. Compared with the conventional injection-production scheme, the initial productivity of pilot well group using 3D-IEDM increases by 6.45%, and the utilization factor of water injection improves by 15%.
Keywords intelligent energy, equilibrium flooding, interbed reservoir, particle swarm optimization