New super-critical cohesion parameters for Soave-Redlich-Kwong equation of state by fitting to the Joule-Thomson Inversion Curve

► Presentation a new method to modify the equations of state by Joule-Thomson Inversion Curve. ► New information about ideal curves. ► Presentation a new/general equation of state which is especially usable at high temperature and pressure conditions (for super-critical regions). For example, drilling of wells at high temperature and pressure conditions may lead into the unexpected phenomenon of increase in temperature during gas expansion.