Oil & Gas UK Supplementary Guidance On The RIDDOR Reporting Of Hydrocarbon Releases.
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Transcript of Oil & Gas UK Supplementary Guidance On The RIDDOR Reporting Of Hydrocarbon Releases.
• Produce supplementary guidance that is– Fully aligned with RIDDOR 2013 requirements– Well-understood by the industry– Consistently applied by the industry
• Primarily focussed on petroleum hydrocarbon releases• Also includes assessment on non-petroleum
hydrocarbon releases
Objectives of Workgroup
Petroleum Hydrocarbon Releases
Number of releases
Reportable Limit
Major
Significant
Minor
Not Reportable
2014 Guidance
Previous Guidance
Reportable Limit
• Regulatory Requirements– Review of DO relating to Hydrocarbon Releases (HCR)
• Methodology for Assessing RIDDOR Reporting of Petroleum Hydrocarbon Releases– Define key words and phrases– Reporting flow chart
• Technical Assessment– Defines Reportable Limits
• Case Studies– Worked Examples
• Appendices– Consequence Analysis– Application of Methodology to Non-Petroleum Hydrocarbon Fluids– High Water Content Liquids
Structure of Guidance
Release of petroleum hydrocarbon
75 The unintentional release of petroleum hydrocarbon on or from an offshore installation which –
(a) results in –
(i) a fire or explosion; or
(ii) the taking of action to prevent or limit the consequences of a potential fire or explosion; or
(b) could cause a specified injury to, or the death of, any person.
Regulatory Requirements – RIDDOR 2013
• Petroleum Hydrocarbons– Well Fluids, Natural Gas, Natural Gas Liquids, Condensate,
Crude Oil
• Continuous & Discrete Releases• Gas, Vapour, Mist, Liquid• Consequence Analysis
– Continuous Release - Jet Fire– Continuous Release - Pool Fire– Discrete Release - Fireball– Discrete Release - Pool Fire– Flash fire, Explosion, Toxic Cloud, Asphyxia, Narcosis - See
Guidance
Technical Assessment – Potential for Death or a Specified Injury
RIDDOR DO 75 Assessment Flowchart
Confirmed?
Unintentional?
Release ofPetroleum
Hydrocarbons?
Fire or Explosion?AutomaticExecutive Action?
OtherAction & Potential
for Death or a SpecifiedInjury?
HCR is RIDDORDO 75 Reportable
HCR is NOT RIDDORDO 75 Reportable
No
No
No
No No No
Yes
Yes
Yes
Yes Yes Yes
Reportable Limits
Type of Release Phase Hazard Fluid Reportable Limit
Continuous
Gas / Vapour / Mist Jet Fire
Natural GasNatural Gas Liquids
CondensateCrude Oil
3 kg/hour(0.0008 kg/s)
OR20% LFL at 0.5 m
Liquid Pool FireNatural Gas Liquids
CondensateCrude Oil
100 kg/hour(0.028 kg/s)
Discrete
Gas / Vapour / Mist Fireball
Natural GasNatural Gas Liquids
CondensateCrude Oil
0.15 kg
Liquid
Pool Fire Natural Gas Liquids 3 kg
Pool Fire Condensate 10 kg
Pool Fire Crude Oil 30 kg
Regulatory Requirements
Unignited Release RIDDOR 2013Dangerous Occurrence
RIDDORReportable Limit OIR/12
Wells DO 20 No All releases
Pipelines DO 21 Yes(See HSE Website)
Only if release is within 500m zone
Release of petroleum hydrocarbons DO 75 Yes
(See Sections 3 & 4)All RIDDOR DO 75 reportable releases
Release of non-petroleum hydrocarbons DO 77 Yes
(See Section 5) Not required
Ignited Release RIDDOR 2013Dangerous Occurrence
RIDDORReportable Limit OIR/12
Wells DO 20 No All releases
Pipelines DO 21 No Only if release is within 500m zone
Release of petroleum hydrocarbons DO 75 No All fires & explosions
Release of non-petroleum hydrocarbon fluids DO 76 No Not required
• Go Live 1 April 2014– Guidance– Assessment Tool– Presentation + Notes
• Feedback Workshop October 2014– Usability of Guidance– Requirement for further guidance– Additional Examples
• Assess impact of EU Offshore Safety Directive– April 2015 (subject to HSE guidance availability)
Forward Plan