Fluid injection tools for use in a wellbore can be configured on-site prior to run-in and can be opened or closed on demand when positioned in the well. A fluid injection tool can be used to provide steam to a wellbore annulus during a steam assisted gravity drainage procedure. Nozzles in the tool through which the steam escapes can be individually plugged to enable fine-tuning of steam output to match a desired steam output for that particular tool's location within the wellbore. A sliding side door can be actuated, such as by a shifting tool inserted within the inner diameter of the fluid injection tool, to enable or disable steam output from the fluid injection tool.
