Patent ID: 8281863

Claim:
A subsea system for producing hydrocarbons comprising: a subsea production member in fluid communication with a wellbore; an element in the production member linearly moveable between at least a first position and a second position; a cylindrical actuation housing having an inner end mounted to and extending from the production member and an open outer end: a stem coupled to the element for linear movement therewith and protruding concentrically into the actuation housing; an electrically powered motor having a motor housing assembly and a rotatable drive member extending therefrom; a motion translator located within the actuation housing, having a rotatable end linked with the rotatable drive member and a linearly moveable opposite end connected with the stem; a fastening assembly connected between the motor housing assembly and the actuation housing to secure the motor housing assembly to the actuation housing with the rotary drive member inserted into the actuation housing, the fastening assembly having cooperative elements on the motor housing and on the actuation housing adjacent the open end of the actuation housing; and wherein releasing the fastener assembly enables the motor housing assembly to be retrieved while the actuation housing remains subsea.