Open reference architecture proposes read-only AI monitoring for US gas pipeline leaks, compressors and OT security

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An engineering summary describes an open reference architecture for a US gas transmission operator, which runs over 3,000 miles of pipe and more than 100 compressor units. The design aims to automate hourly analyses that operators currently perform by hand, such as distinguishing leaks from line pack changes, spotting failing compressors, detecting unexpected access to station OT networks, and producing security compliance evidence. The system is strictly read-only toward field devices: a separate console beside the control room HMI explains alerts and drafts responses, while controllers retain all control and shutdown authority. Data flows out of station networks through a hardware one-way diode, with updates entering only via an air-gapped registry under change management. The paper and its object model are released under CC BY 4.0.

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