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Emission Reduction Options for the Onshore Natural Gas Processing Segment

The EPA estimates methane emissions from the oil and natural gas industry in its annual Inventory of U.S. Greenhouse Gas Emissions and Sinks. The onshore natural gas processing segment contributes 12% to the total methane emissions from the oil and natural gas industry. The chart on the right shows the distribution of the top emission sources* in this segment, which represent 73% of the total emissions from onshore natural gas processing. Click on each emission source category to view one of many appropriate, cost-effective methane mitigation options below. A full list of emission mitigation options can be found here.

*Note: These emission estimates have an uncertainty associated with them. Not all facilities will have the same distribution of emissions between sources. Also, some emission sources are only present in a few facilities and may not be represented in the pie chart.

This pie chart breaks out four major emission sources from the Onshore Natural Gas Processing segment.  The largest source of emissions is from Reciprocating Compressor Rod Packing, which account for 44% of emissions.  Centrifugal Compressor Wet Seals are second, accounting for 25%.  Fugitives and Plant Blowdowns rank third and fourth, accounting for 3% and 1%, respectively.  Other emission sources make up the remaining 27% of emissions.

“Other” Emission Sources: Uncombusted Methane, Centrifugal Compressors with Dry Seals, Dehydrator Vents, Acid Gas Removal Vents, Pneumatic Devices

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+ Reducing Methane Emissions from Reciprocating Compressor Rod Packing

+ Replacing Wet Seals with Dry Seals in Centrifugal Compressors

+ Directed Inspection and Maintenance at Gas Processing Plants and Booster Stations

+ Reducing Emissions When Taking Compressors Off-Line

Need Help?
EPA can assist with all questions related to technologies and practices to reduce methane emissions. To contact us click here.


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