Glossary

To support the industry and stakeholders in the use of consistent terminology, Ipieca, IOGP, GIE and MARCOGAZ prepared this methane emissions glossary covering the whole natural gas value chain.

Intended for policymakers and regulators working on methane regulation in Europe, this glossary will be updated to reflect new legislation and technologies.

Download the Methane Emissions Glossary

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There are currently 3 names in this directory beginning with the letter F.
F
Field survey
A field emissions survey collects needed operational data onsite and utilizes specialized equipment to identify methane emission sources and measure emissions levels of unmitigated sources, both fugitive sources (unintentional emissions from flanges, valves, fittings, etc.), and vents from normal operations, such as tank roof vents or wet seal compressor degassing drum vents. [16]
Flaring
Controlled burning of hydrocarbons mainly for safety reasons. [12] (Note 1 - Flaring also reduces hydrocarbons to CO2 and water, thus lowering the global warming impact of the released gases. Note 2 - A definition for “routine flaring” will be included later)
Fugitive emission
Leaks due to tightness failure and permeation. [12]

References

[1] Directive 2009/73/EC of the European Parliament and of the Council of 13 July 2009

[2] EN-12186 – Gas infrastructure – Gas pressure regulating stations for transmission and distribution – Functional requirements

[3] EN-12327 – Gas infrastructure – Pressure testing, commissioning and decommissioning procedures – Functional requirements

[4] EN-12583 – Gas Infrastructure – Compressor stations – Functional requirements

[5] EN-15446 – Fugitive and diffuse emissions of common concern to industry sectors – Measurement of fugitive emission of vapours generating equipment and piping leaks

[6] GIE & MARCOGAZ Report “Potential ways the gas industry can contribute to the reduction of methane emissions” https://www.gie.eu/index.php/gie-publications/methane-emissions/methaneemission-report-2019/27786-gie-marcogaz-report-for-the-madrid-forum-potentialway-gas-industry-can-contribute-to-the-reduction-of-methane-emissions/file

[7] IPIECA/API/IOGP (2020). Oil and gas industry guidance on voluntary sustainability reporting https://www.ipieca.org/media/5105/ipieca_sustainability-guide_2020_glossary.pdf

[8] IPIECA Methane Glossary http://www.ipieca.org/resources/awareness-briefing/methane-glossary/

[9] ISO 14532 – Natural gas — Vocabulary

[10] JCGM-100 – Evaluation of measurement data – Guide to the expression of uncertainty in measurement. s.l.: Committee for Guides in Metrology (JCGM/WG 1), 2008

[11] MARCOGAZ – Assessment of methane emissions for gas Transmission and Distribution system operators, 2019 https://www.marcogaz.org/app/download/8161672063/WG_ME-485- Assessment+of+methane+emissions+for+gas+Transmission+and+Distribution+system+ operator.pdf?t=1602849054

[12] MARCOGAZ – Guidance for using the MARCOGAZ methane emissions reporting template – DSO, TSO, LNG receiving terminals and UGS https://www.marcogaz.org/app/download/8271109963/WG_ME710.pdf?t=1606988780

[13] MGP Reducing methane emissions: Equipment leaks https://methaneguidingprinciples.org/best-practice-guides/equipment-leaks/

[14] MGP Reducing methane emissions: Identification, detection, measurement and quantification https://methaneguidingprinciples.org/wp-content/uploads/2020/09/ReducingMethane-Emissions_Identification-Detection-Measurement-andQuantification_Guide.pdf

[15] MGP Reducing methane emissions: Transmission, storage, LNG terminals and distribution https://methaneguidingprinciples.org/wp-content/uploads/2020/09/ReducingMethane-Emissions-transmission-storage-LNG-terminals-and-distribution-Guide.pdf

[16] Oil and Gas Methane Partnership Technical Guidance Documents https://ccacoalition.org/en/content/oil-and-gas-methane-partnership-technicalguidance-documents

[17] Regulation (EC) No 715/2009 of the European Parliament and of the Council of 13 July 2009

[18] US EPA – ‘Method 21: Determination of volatile organic compound leaks’