University of Colorado at Boulder
BMP of Oil and Gas Development

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BMP ID: 4921
Title: Use Ultrasound To Identify Leaks.
Text: "Use Ultrasound to Identify Leaks. Some of the hardest leaks to find, and therefore among the larges leaks, are shutoff valves on open-ended lines that vent through an elevated stack. Ultrasound leak detectors are tuned to detect the high-frequency sounds associated with gas flowing through a valve that is not tightly closed. Lower-frequency background noises are filtered out. The magnitude of the sound corresponds to the magnitude of the leak. Ultrasound detectors can be applied to all in-service shutoff valves and pressure-relief, blowdown, starter-motor, and unit isolation valves. The cost of an ultrasound detector is approximately U.S. $250. Operating costs include the labor to locate and repair leaking valves, which may be as simple as tightening the valve. This emission reduction option is most cost-effective at facilities with a large number of valves." [see Table 2 and 3 in source document for costs, benefits and production characteristics]
Source Publication Name: Cost-effective methane emissions reductions for small and midsize natural gas producers
Citation Section: Table 1
Citation Page:
Supplemental Documents:  
Usage Type: Recommended
Timing: • Production / Operation / Maintenance
Oil / Gas Field:  
Surface Ownership: • Federal
• State
• Private
Mineral Ownership: • Federal
• State
• Private
Primary Contact: Environmental Protection Agency
Ariel Rios Building, 1200 Pennsylvania Avenue, N.W.
Washington, DC  20460  United States
Phone:(202) 272-0167     Alt. Phone:(202) 272-0165
Fax:     E-mail: 
Alternate Contact:  
Categories: Air Quality and Emissions
Location: General / Federal
Vegetation Types:
General Comments:
Cost-Benefit Analysis: Cost & Benefits: Equipment Cost = $250; O&M Cost = $1,200; Saleable Gas Saving (Mcf/d)= 5.5; Expected Payback= Less than one year; Operating Requirement = N/A; Basis for cost saving = Testing 10 compressor train finding 100 leaking valve on open ended line; Other Benefits =
BMP Efficacy:
Date Entered: 2009-04-17 09:36 UTC
Last Updated: 2011-07-17 13:56 UTC