With offshore flaring now included in Phase II of the EU Emissions Trading Scheme, this EI Hydrocarbon Management title has been written to provide guidance on the determination of flare gas quantities for environmental reporting purposes principally for measurement specialists, environmental personnel and operations management.
HM 58 aims to assist oil and gas duty holders who have a requirement to monitor and report CO2 emissions to the competent authority and will therefore also assist others involved in flare emissions measurement and reporting, including contractors, verifiers, regulators, governmental bodies and measurement specialists.
The document specifically covers upstream oil and gas installations, including offshore facilities and onshore terminals. It is anticipated that the guiding principles contained in HM 58 will also be relevant to downstream oil and gas facilities (i.e. refineries) and to regions outside of the UKand EU sector, where controls on discharges from flares are being used.
HM 58 provides a top-level common industry approach to determining gas flare quantity, taking into account requirements for compliance with both domestic and international regulatory schemes. Included are the key methods to determine flare quantity, whether by direct (measured) or indirect (inferred) techniques, and identifies the key sources of uncertainty in these methods.
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