Hydrocarbon flowline corrosion inhibitor overpressure protection

A system comprising:

• a flow control system comprising:
• a pump configured to flow a fluid into a flowline through which hydrocarbons are flowed, the pump configured to flow the fluid at a pressure greater than a flowline pressure of the hydrocarbons flowing through the flowline;
• a first rupture disc and a second rupture disc, each fluidically coupled to the pump, the pump configured to flow the fluid through the first rupture disc when a pump pressure exceeds a threshold flow pressure, and each configured to fail in response to a pressure of the flow of the fluid exceeding a respective pressure threshold, wherein the first rupture disc and the second rupture disc are fluidically isolated from each other such that when the first rupture disc is open to flow, the second rupture disc is closed to flow;
• and
• a processing system coupled to the flow control system, the first rupture disc and the second rupture disc, the processing system configured to:
• determine a failure of the first rupture disc,
• cease the flow of the fluid through the first rupture disc, and
• permit the flow of the fluid through the second rupture disc.