Abstract: A portable heat exchange cooler with a self-contained heat exchange unit configured for cost-effective transportation without wide-load travel restrictions to remote locations. The portable heat exchange cooler can include a process cooler, an engine driver, and a fuel vessel, each mounted on a gooseneck-style trailer. The process cooler is typically housed within a containment cage and configured to reduce the temperature of a gas flowing through cooling tubes of the process cooler. An engine driver typically housed outside the containment cage can drive the process cooler. The engine driver is coupled to a fuel vessel capable of providing fuel for powering the engine driver. Leveling devices positioned on the trailer are useful for leveling the trailer (and the process cooler) at a field site.