Methods and systems are provided for recovery of oil from a subterranean reservoir employing nanofluid injection at a controlled flow rate. The method comprises the step of injecting nanofluid through at least one well that traverses the subterranean reservoir and into the subterranean reservoir at a controlled flow rate. And, the system comprises: at least one well that traverses the subterranean reservoir; and injection means for injecting nanofluid through the well and into the subterranean reservoir at a controlled flow rate.