windows 24 one window 24 being depicted in fig1 and multiple windows 24 being depicted in fig4 of the outer choke housing 22 inject fluid into the well the number of openings that are exposed through the window s 24 are a function of the choke design and position of the internal choke sleeve the longitudinal position of the internal choke sleeve relative to the outer choke housing 22 may be mechanically manipulated from the surface of the well in accordance with some embodiments of the invention however in accordance with other embodiments of the invention the choke assembly 20 includes an actuator 26 which may be remotely controlled from the surface of the well for purposes of longitudinally moving the internal choke sleeve up and down inside the choke housing 22 to control the fluid flow from the choke injector the actuator 26 may be controlled by a hydraulic control line in some embodiments of the invention alternatively in other embodiments of the invention the actuator 26 may be controlled via other mechanisms such as through for example a wired connection an electrical or optical cable for example between the actuator 26 and the surface of the well in other embodiments of the invention the actuator 26 may be controlled through wireless stimuli that are communicated to the actuator 26 from the surface of the well as examples the wireless stimuli may include fluid pressure pulses acoustic waves electromagnetic waves etc depending on the.