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The Deepwater Horizon Incident: Fire and Explosion Issues
The loss of life and serious environmental damage from the blow out incident on the semi-submersible drilling rig Deepwater Horizon in 2010 in the US sector of the Gulf of Mexico has forced a reappraisal of the risks associated with drilling. HSE commissioned this work in order to consider the lessons to be learned from this international incident. It is important for HSE to stimulate and inform consideration of fire and explosion risks amongst the designers and operators of drilling rigs. Well control is clearly the first priority but some residual risk of blowout normally remains. This report...
Review of vapour cloud explosion incidents
Major incidents worldwide have involved large vapour cloud explosions, including the Buncefield explosion in 2005. It is important to learn from historical incidents to understand the risk profile of installations. Following the Buncefield explosion, a large body of published research has improved scientific understanding of the release event, the flammable cloud formation and the explosion. This report describes work done by HSE with US safety regulators to consolidate previous research and to incorporate recently published analysis into a single, systematic review of historical incidents. Important...
Explosions sur le lieu de travail
Une explosion sur le lieu de travail a souvent des conséquences terribles, sur le plan tant humain que matériel et économique. Les activités qui impliquent des manipulations de produits chimiques ou de poussières combustibles sont les plus concernées. La priorité est toujours d'empêcher la formation du phénomène. Et s'il survient néanmoins, d'en atténuer les effets. Source: Travail & Sécurité , Numéro 774, Juillet-août 2016. http://www.travail-et-securite.fr/ts/dossier/Atmosph...
Health and Safety Risks for Workers Involved in Manual Tank Gauging and Sampling at Oil and Gas Extraction Sites
The National Institute for Occupational Safety and Health (NIOSH) and the Occupational Safety and Health Administration (OSHA) have identified health and safety risks to workers who manually gauge or sample fluids on production and flowback tanks from exposure to hydrocarbon gases and vapors, exposure to oxygen-deficient atmospheres, and the potential for fires and explosions. Source: http://www.cdc.gov/niosh/docs/2016-108/default.html
Incendie et explosion lors du travail mécanique de l'aluminium
Le travail mécanique de l'aluminium est un process au cours duquel les risques d'incendie et d'explosion liés aux poussières générées ou à l'hydrogène éventuellement émis par réaction de ce métal avec l'eau sont élevés. La mise en place des moyens de prévention et des mesures de protection est complexe et requiert une étude approfondie qui, outre l'évacuation des poussières et gaz, devra prévoir la réduction des sources d'inflammation...
Ventilation of vehicles used for carriage of acetylene
Following a fatality caused by an acetylene gas explosion involving a van carrying oxy-acetylene welding equipment, HSE commissioned research to investigate foreseeable gas leak rates, vehicle ventilation rates and possible vehicle modifications that would increase the ventilation rate and hence help to mitigate the explosion risk. Source: http://www.hse.gov.uk/research/rrhtm/rr1027.htm
Response of small-scale blackpowder storage in partitioned wooden boxes to external fire
Research has shown that when a partitioned wooden box containing twenty five plastic bottles, each bottle containing 1 kg of blackpowder is exposed to an external wood fire, the bottles of powder do not explode en masse but ignite over a short period of time. Fire resistance times for the specified box design of no less than 8 minutes were observed before blackpowder ignitions started to occur. Following blackpowder ignitions within the wooden box, ejection of full bottles of blackpowder may occur with bottle ejection distances of up to 5 m having been recorded. In the event of an incident involving...
OSHA Releases Booklet for Responders Encountering Combustible Dust
OSHA has issued a new booklet, "Firefighting Precautions at Facilities with Combustible Dust," to aid emergency responders who may face fires and explosions caused by combustible dust. The primary purpose of this document is to protect emergency responders from harm by giving them a framework for gathering the necessary information prior to an emergency and converting it into safe operating procedures. In this document, emergency responders include firefighters, fire brigade members, hazardous materials teams, and others who might be called upon to respond when a fire or explosion occurs...
Design optimization of hazardous substance storage facilities to minimize project risk
The storage of dangerous substances is a high risk procedure: a historical analysis revealed that 17% of the major accidents associated with the chemical industry are related to this process. When a storage facility is designed, the investment in safety is not always optimal. The safety measures that are applied are sometimes redundant or ill-maintained. One way to improve safety in a storage facility would be to take advantage of the fact that dividing the mass of dangerous substance results in less catastrophic accidents. In this paper, we present a new method for optimizing the design of storage...
Safety line method for the prediction of deep coal-seam gas pressure and its application in coal mines
Gas pressure is an important index for evaluating the outburst risk and determining the gas content in coal seams. It is recommended to predict coal-seam gas pressure of the workface at deep levels before extending mining activities to deeper levels. According to the prediction results, measurements are taken for gas outburst prevention and control and for workload estimation. At present, regression methods are always used to process the numerous gas pressure data for prediction. Because there are many factors that influence the gas pressure which could lead to a deviation from actual values, the...
Risk assessment for VCE scenario in an aerosol warehouse
In 2006, Dr Graham Atkinson of HSL was asked by HSE to review the risks from fires in large aerosol stores (Atkinson, 2007). Atkinson reviewed incident statistics and reports and concluded that the greatest risk to people from such fires was from explosions, not from the fire itself. He postulated a vapour cloud explosion (VCE) mechanism, whereby a fire of material elsewhere in the warehouse from the aerosols could give rise to a hot air layer close to the ceiling. Aerosols stored close to the ceiling could then fail and release their flammable contents, but not be immediately ignited by the fire...
Véhicules fonctionnant au GPL : mesures de prévention contre le risque explosion
L'évolution rapide des problèmes énergétiques et environnementaux impose d'utiliser les atouts des énergies alternatives. L'Union Européenne propose, dans ce domaine, que les énergies alternatives représentent 20 % de la consommation de carburant en 2020. Le GPL (gaz de pétrole liquéfié) est un élément dans la nécessaire diversification énergétique. Bien que, dans son principe, l'utilisation du GPL soit comparable à celle des essences, il faut tenir compte des caractéristiques...
Véhicules industriels équipés au gaz naturel. Mesures de prévention contre le risque explosion
L'exploitation d'un parc de véhicules équipés au gaz naturel (GNV) est une activité dans laquelle le risque d'explosion est susceptible de se présenter du fait de la présence permanente d'un gaz combustible et de son stockage sous pression élevée de 20 MPa (200 bars). La mise en place des moyens de prévention et des mesures de protection est nécessaire et requiert une étude approfondie qui, outre la prise en compte du GNV sous pression élevée, se penchera sur la présence éventuelle...
Potential for leaks of LPG from underground pipes into caravans and park homes
A key factor leading to the fatal explosion at ICL Plastics Ltd was corrosion of underground metallic service pipework carrying LPG into the factory building. Leaking of LPG from the corroded pipe into the building with its subsequent ignition resulted in the explosion. A programme to replace buried metallic service pipework with pipework made from non-corrosive materials such as polyethylene at industrial and commercial premises is currently underway. The replacement of such pipework supplying LPG to communal buildings at Residential Home and Holiday Parks forms part of this programme. This report...
Explosions de poussières dans les lieux de travail
Recensement et analyse La mise en oeuvre de poudres ou de produits pulvérulents combustibles peut entraîner, dans certaines conditions, la formation d'atmosphères explosives (ATEX). Cent quatre-vingt-dix explosions de poussières, survenues sur la période de 1903 à janvier 2010, ont été répertoriées dans la base de données ARIA du BARPI. Cette étude a porté sur les secteurs d'activité pour lesquels des explosions ont été recensées. Il s'agit des secteurs du bois, des...
Feasibility of storybuilder software tool for major hazards intelligence
The aim of this research was to investigate the feasibility of using the software tool Storybuilder version 2.0.34 (2008), developed by the Workgroup Occupational Risk Model (WORM) project in the Netherlands, for recording and analysing major hazards loss of containment (LOC) incident data as a tool to better understand how accidents happen and where prevention efforts should be focused. The ultimate aim of the project is to determine if Storybuilder can provide enhanced intelligence about major accident hazards and therefore allow better targeting of HSE intervention resources. Source : http:...
Buncefield Explosion Mechanism Phase 1
The Buncefield explosion (11 December 2005) resulted in tremendous damage to the outlying area and huge fires involving 23 large oil fuel tanks. One important aspect of the incident was the severity of the explosion, which would not have been anticipated in any major hazard assessment of the oil storage depot before the incident. The Buncefield Major Incident Investigation Board (MIIB) invited explosion experts from academia and industry to form an Advisory Group to advise on the work that would be required to explain the severity of the Buncefield explosion. This MIIB Advisory Group carried out...
L'aménagement d'une fosse de réparation
En plus des dangers présents dans les ateliers de mécanique, toutes les fosses présentent les risques suivants: l'explosion suite à l'accumulation de vapeurs dans la fosse; la chute de personnes ou d'objets dans la fosse; le basculement du véhicule dans la fosse. http://autoprevention.qc.ca/docs/FT_S03_Fosses.pdf

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