An artificial lift fluid system for use in a wellbore with a casing engaging a well head can include a prime mover in communication with a variable frequency drive controller, or connected with a throttle, sensors, and a programmable logic controller for optimizing production from the wellbore by comparing data with preset production parameters. The artificial lift fluid system can include upper bearings connected to the prime mover, and an on-off tool connected with a shaft. The shaft can be engaged with the upper bearings, prime mover, and the on-off tool. The on-off tool can be connected with the centrifugal pump. A seal can be engaged with the shaft, a bottom bearing can be connected with the centrifugal pump to support loads, and bushings can separate the on-off tool and shaft from tubing in the casing.