Artificial lift fluid system

An artificial lift fluid system for use in a wellbore with a casing engaging a well head, the artificial lift fluid system comprising:

• a. a prime mover, wherein the prime mover comprises a member of the group consisting of:
• a natural gas engine, a diesel engine, or combinations thereof;
• b. upper bearings connected to the prime mover;
• c. a throttle connected with the prime mover, wherein the throttle is configured to vary a drive speed of the prime mover and optimize production from the wellbore;
• d. a shaft configured to rotate in a first direction, wherein the shaft comprises a first end and a second end, wherein the shaft engages the upper bearings at the first end, wherein the upper bearings are configured to support loads of the shaft, and wherein the prime mover is configured to rotate the shaft;
• e. an on-off tool comprising a male connection engaged to a female connection, wherein the on-off tool:
• (i) engages the second end of the shaft via the male connection, and the female connection engages a centrifugal pump;
• or
• (ii) engages the second end of the shaft via the female connection, and the male connection engages the centrifugal pump;
• and
• f. bottom bearings connected with the centrifugal pump, wherein the bottom bearings are configured to support loads from the centrifugal pump;
• g. a plurality of pressure, temperature, flow rate, and load sensors disposed in the wellbore, the casing, a flow line, a storage tank, or combinations thereof;
• and
• h. a programmable logic controller connected with the plurality of pressure, temperature, flow rate, and load sensors and the throttle, wherein the programmable logic controller is configured to receive sensor data from the plurality of pressure, temperature, flow rate, and load sensors, compare the received sensor data to preset production parameters in the programmable logic controller, and optimize operation of the throttle using control signals.