Preventing downhole loss of artificial lift system upon unintended component disconnection

A well system comprising:

• an artificial lift system suspended from a tubing string deployed in a wellbore of the well;
• an uphole coupler coupled to the tubing string at a location uphole of the artificial lift system;
• a downhole coupler coupled to a downhole component of the artificial lift system;
• and
• a tether connected between the uphole coupler and the downhole coupler to suspend at least a portion of the artificial lift system from the uphole coupler upon an unintended disconnection of a component of the artificial lift system, the tether of a construction to support a tensile load of between 12,000 pounds to 20,000 pounds.

A method comprising:

• installing a loss prevention assembly to an artificial lift system of a tubing string, the loss prevention assembly comprising:
• an uphole coupler coupled to the tubing string at a location uphole of the artificial lift system,
• a downhole coupler coupled to a downhole component of the artificial lift system, and
• a tether of a construction to support a tensile load of between 12,000 pounds to 20,000 pounds connected between the uphole coupler and the downhole coupler to suspend at least a portion of the artificial lift system from the uphole coupler upon an unintended disconnection of a component of the artificial lift system;
• and
• deploying the artificial lift system downhole in a wellbore of a well such that the artificial lift system is suspended from the tubing string within the wellbore.