Systems and methods for generation of electrical power in an organic Rankine cycle operation

A method for generating geothermal power in the vicinity of a wellhead during hydrocarbon production to thereby supply electrical power, the method comprising:

• prior to hydrocarbon production, opening, to at least a partially opened position, one or more heat exchanger valves positioned between one or more heat exchangers and a wellhead fluid flow line;
• during hydrocarbon production at a wellhead, determining, based on feedback from one or more temperature sensors, a temperature of an organic working fluid in a working fluid flow line, the temperature of the organic working fluid based on heat transfer from a flow of wellhead fluid from the wellhead to the organic working fluid;
• and
• in response to a determination that the temperature of the organic working fluid is greater than or equal to a vaporous phase change threshold of an organic working fluid, maintaining the at least partially open position of the one or more heat exchanger valves to allow continuous diversion of the flow of the wellhead fluid to one or more heat exchangers to facilitate transfer of heat from the flow of the wellhead fluid to the organic working fluid through the one or more heat exchangers to thereby generate heated organic working fluid, the heated organic working fluid to cause an organic Rankine cycle (ORC) unit to generate electrical power for an air cooler.