An automated flowback system allows control and operation of the system from a remote location away from the dangers of high-pressure gases or abrasives traveling at high velocities that cause damage or failure to equipment piping valves. Plays of the Class III game are simulated in a computer to obtain frequencies of occurrence of at least one Class III award. The annular seal assembly may include an inflatable packer element and a hydraulic inflation system. The method prevents high pressure pipe connection pullout, which otherwise could lead to catastrophic failure. The heat engine is operable to mix the fluid between the first fluid region and the second fluid region in response to a change in the crystallographic phase of the shape-memory alloy to reduce the difference in the composition of the fluid bath between the first fluid region and the second fluid region. The insertion hole is located at a position corresponding to the cutout portion.