Typology of Common Leaks and Repair Considerations

The document categorizes methane emissions by spatial, temporal, and source characteristics and provides a detailed guide for identifying and repairing leaks across various equipment types based on onsite observations.

• Methane emission sources are classified by spatial characteristics (point vs. diffuse), temporal characteristics (continuous vs. intermittent/single event), and source characteristics (equipment malfunction vs. operational upsets).
• Leaks are grouped into three repair categories: routine leaks on standard components, process-critical or safety-related leaks requiring specific protocols or shutdowns, and structural or access-limited leaks in hard-to-reach areas like offshore facilities or tank roofs.
• Common root causes for leaks in valves, flanges, and gauges include procedural oversights, thermal expansion, vibration, and mechanical wear, often requiring immediate tightening or component replacement.
• Significant emissions can stem from poorly tuned pressure release devices with intentionally low set points, or flare failures caused by ignition system malfunctions and poor combustion efficiency.

APA

Clean Air Task Force (n.d.). Typology of Common Leaks and Repair Considerations. https://www.catf.us/wp-content/uploads/2026/06/Typology-of-Common-Leaks-and-Repair-Considerations.pdf

Chicago

Clean Air Task Force. Typology of Common Leaks and Repair Considerations. n.d. https://www.catf.us/wp-content/uploads/2026/06/Typology-of-Common-Leaks-and-Repair-Considerations.pdf.

Wikipedia

{{cite report |author=Clean Air Task Force |title=Typology of Common Leaks and Repair Considerations |url=https://www.catf.us/wp-content/uploads/2026/06/Typology-of-Common-Leaks-and-Repair-Considerations.pdf |access-date=23 October 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{cleanairtaskforcendtypology, author = {{Clean Air Task Force}}, title = {{Typology of Common Leaks and Repair Considerations}}, institution = {Clean Air Task Force}, url = {https://www.catf.us/wp-content/uploads/2026/06/Typology-of-Common-Leaks-and-Repair-Considerations.pdf}, urldate = {2026-10-23}, note = {Indexed by Climate Insights Directory} }