Pipeline Safety / 2026-07-01
Article Summary
LDAR for gas utilities should be understood as a workflow, not a single detector. A practical process starts with methane leak detection, then source location, work order creation, repair action, post-repair verification and structured record keeping. Fixed detectors, valve chamber monitoring terminals, portable inspection tools and platform records can work together to help teams prioritize high-risk assets and customer sites. Hanwei Smart Gas supports this workflow by connecting field signals, inspection records and response data. Final reporting format, repair rules and emissions-related calculations should follow local requirements, approved methodologies and third-party verification where applicable.
Why Repair Is Not the End of the Record
EPA notes that repaired equipment can develop leaks again. Regular inspection and maintenance remain important after a repair.
Industry background, not evidence of Hanwei product performance.
A Workflow to Discuss with Your Operations Team
Use the following sequence to define responsibilities and information handoffs. It is a project planning checklist, not an emergency response procedure. Suspected gas leaks must be handled by qualified teams under the operator's approved safety procedures.
- Detect: retain the original alarm or inspection indication, time, device identity and operating status.
- Locate: associate the event with an asset and inspection findings; distinguish the detection position from the confirmed leak source.
- Quantify: when appropriate measurement is available, record the result, units, method and limitations. Otherwise mark leak rate as unavailable, not zero.
- Repair: link a work order, responsible team, repair action and completion time to the original event.
- Verify: retain the post-repair check, method, time and result. A closed work order alone is not evidence of a successful verification.
- Report: preserve the event history, unresolved exceptions and supporting records for operational review. External reporting requires the applicable methodology and verification rules.
Match Tools to the Job, Not Just the Alarm Count
For a valve chamber or regulator site, discuss whether installed monitoring, field inspection or a combination fits access, communication and maintenance conditions. Installed monitoring can provide event indications; field tools can support follow-up investigation. A platform is useful when it connects those records to the same asset and repair task. Product capabilities, interfaces and data capture must be confirmed by model and project scope.
- Ask who owns the asset register and who confirms a suspected leak.
- Agree how unlocated indications and unsuccessful repairs remain open for follow-up.
- Request a demonstration of one event from detection through repair verification, including a missing-data case.
- Confirm export fields, record ownership and integration responsibilities before selecting a platform.